{"id":6065,"date":"2020-07-30T19:13:10","date_gmt":"2020-07-30T17:13:10","guid":{"rendered":"http:\/\/neu.ski-consult.de\/?page_id=6065"},"modified":"2023-11-16T15:15:18","modified_gmt":"2023-11-16T14:15:18","slug":"sandwichturm","status":"publish","type":"page","link":"https:\/\/ski-consult.de\/en\/taetigkeitsbreiche\/onshore-windenergieanlagen\/sandwichturm\/","title":{"rendered":"Sandwich tower"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"6065\" class=\"elementor elementor-6065\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c202138 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c202138\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-c8865f5\" data-id=\"c8865f5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2cbe442 elementor-widget elementor-widget-heading\" data-id=\"2cbe442\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">A tower as sandwich construction\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cba5de2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cba5de2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-bcba484\" data-id=\"bcba484\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-428d72e elementor-widget elementor-widget-text-editor\" data-id=\"428d72e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The performance and size of wind energy plants has increased in recent years more and more. Inevitably, it also increases the demands on the tower structures that were previously used as steel pipe, pre-stressed concrete or lattice tower for execution. Alternatively, a sandwich tower was developed, with which the shell stability and load capacity can be increased. This leads to greater tower heights than with the conventional steel construction can be achieved, while simultaneously increasing the energy yield for the same turbine disproportionately.\u00a0<\/p><ul><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">The principle of a sandwich tower<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Comparison of the tower cross-sections<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Sustainability<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Mass balance<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Damping behavior<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Manufacturing technology<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Connection technology<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Transport<\/a><\/li><li><a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwichturm\/\">Assembly technology<\/a><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d664737\" data-id=\"d664737\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-39ef6e5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"39ef6e5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1e1fb5b\" data-id=\"1e1fb5b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9e2b72b elementor-widget elementor-widget-image\" data-id=\"9e2b72b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/elementor\/thumbs\/csm_Sandwichturm_04_486090eca0-oty2fjaec0eahllnzcfsv0qiljt2xkisaycdsgqy9s.jpg\" title=\"csm_Sandwichturm_04_486090eca0\" alt=\"Sandwichturm\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-7111bae\" data-id=\"7111bae\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-65c2e87 elementor-widget elementor-widget-image\" data-id=\"65c2e87\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/elementor\/thumbs\/WEA-Stahlrohrturm-01-scaled-oxaxoucyaq0hxvjwen3ecmf2f10x4wj8p8o75v6txc.jpg\" title=\"WEA &#8211; Stahlrohrturm\" alt=\"WEA - Stahlrohrturm\" loading=\"lazy\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-8c08480 elementor-widget elementor-widget-text-editor\" data-id=\"8c08480\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\">Supporting structure in sandwich construction<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-d397bc9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"d397bc9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d0a0fba\" data-id=\"d0a0fba\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-6fd910d elementor-widget elementor-widget-heading\" data-id=\"6fd910d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The principle of a sandwich tower\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6a742d elementor-widget elementor-widget-text-editor\" data-id=\"d6a742d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"main-content\">\n<div class=\"content\">\n<div id=\"c881\" class=\"csc-default\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<p class=\"bodytext\">A sandwich tower section basically consists of a steel inner and outer tubes, which are stiffened entire surface by an intervening composite. As composites can pumpable elastomers, epoxy resins and grouts are used, which are filled in ascending order from the base of the tower in the annular gap. In addition to the stiffness and compressive strength of the composite filling materials whose strength is of vital importance for the structural behavior of the sandwich cross-section. <br><\/p><\/div><div class=\"csc-textpic-imagewrap\"><div class=\"csc-textpic-center-outer\"><div class=\"csc-textpic-center-inner\"><div class=\"csc-textpic-imagerow csc-textpic-imagerow-none\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6a4e206 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6a4e206\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-d0925cd\" data-id=\"d0925cd\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e8af597 elementor-widget elementor-widget-image\" data-id=\"e8af597\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"200\" height=\"185\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Stahlturmsektion_04_ae0581ea26.jpg\" class=\"attachment-full size-full wp-image-6079\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Steel tower section<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-13d7cd5\" data-id=\"13d7cd5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-15954ac elementor-widget elementor-widget-image\" data-id=\"15954ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"654\" height=\"600\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Sandwichturmsektion_04_d22cfe9388.jpg\" class=\"attachment-full size-full wp-image-6076\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Sandwichturmsektion_04_d22cfe9388.jpg 654w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Sandwichturmsektion_04_d22cfe9388-300x275.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Sandwichturmsektion_04_d22cfe9388-240x220.jpg 240w\" sizes=\"(max-width: 654px) 100vw, 654px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sandwich tower section<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-eeacaa5\" data-id=\"eeacaa5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-ae8c155 elementor-widget elementor-widget-image\" data-id=\"ae8c155\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_stahlquerschnitt_04_b6b57a9001.jpg\" class=\"attachment-full size-full wp-image-6075\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_stahlquerschnitt_04_b6b57a9001.jpg 800w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_stahlquerschnitt_04_b6b57a9001-300x225.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_stahlquerschnitt_04_b6b57a9001-768x576.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Steel cross-section<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-25 elementor-top-column elementor-element elementor-element-063219f\" data-id=\"063219f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0897118 elementor-widget elementor-widget-image\" data-id=\"0897118\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"528\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwichquerschnitt_04_6c3c773c9e.jpg\" class=\"attachment-full size-full wp-image-6074\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwichquerschnitt_04_6c3c773c9e.jpg 800w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwichquerschnitt_04_6c3c773c9e-300x198.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwichquerschnitt_04_6c3c773c9e-768x507.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sandwich cross-section\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3d1fc65 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3d1fc65\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-3f8ee2a\" data-id=\"3f8ee2a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d2ca919 elementor-widget elementor-widget-heading\" data-id=\"d2ca919\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sustainability\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e33a4e9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e33a4e9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d290041\" data-id=\"d290041\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bf489bc elementor-widget elementor-widget-text-editor\" data-id=\"bf489bc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"main-content\">\n<div class=\"content\">\n<div id=\"c881\" class=\"csc-default\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<p class=\"bodytext\">For the new sandwich tower sections, the cross-section capacities for axial and bending stresses were determined. The elastic moment resistance increases by 30% compared to a steel tower section with the same steel used because the filling material in the annular gap involved in the load transfer on the pressure side bending. The shell stability could be increased to the extent that the yield strength of the inner and outer tube are fully exploited correspondingly large thickness and stiffness of the filler materials. Thus, in principle, the use of higher strength steels for towers of wind turbines feasible. <br><\/p><\/div><div class=\"csc-textpic-imagewrap\"><div class=\"csc-textpic-center-outer\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-8ad2737 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8ad2737\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-138ce3d\" data-id=\"138ce3d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-305ec4a elementor-widget elementor-widget-heading\" data-id=\"305ec4a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mass balance<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b6620e5 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b6620e5\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-18bec63\" data-id=\"18bec63\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-697e402 elementor-widget elementor-widget-text-editor\" data-id=\"697e402\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"main-content\">\n<div class=\"content\">\n<div id=\"c881\" class=\"csc-default\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<p class=\"bodytext\">The development of the sandwich tower made it possible by the combination of high-strength steel and composite materials to reduce the total tonnage with a simultaneous increase in bearing capacity. For example, the steel tonnage to be reduced by 50% compared to a version with a S235 by using a S460. As compared to a steel tower section or savings in weight are possible in spite of the additional filling material. <br><\/p><\/div><div class=\"csc-textpic-imagewrap\"><div class=\"csc-textpic-center-outer\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-4f8c565 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"4f8c565\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-f74168e\" data-id=\"f74168e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-43dd408 elementor-widget elementor-widget-heading\" data-id=\"43dd408\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Damping behavior<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ab4db31 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ab4db31\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-420726e\" data-id=\"420726e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2c270b4 elementor-widget elementor-widget-text-editor\" data-id=\"2c270b4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><div id=\"c881\"><div><div><div><div><div><div><div><p>The damping behaviour of a sandwich section was investigated by means of forced harmonic oscillations on cantilever beams with constant mass occupancy and a point mass at the free end. Numerical simulations were used to compare the damping behaviour of a sandwich panel and a steel panel. Based on the resonance spectrum (see diagram), it can be seen that the structural damping of the sandwich cross section is about 4 times higher than for the steel cross section. Although the results are not directly proportional to the pipe cross-section, the example already shows that the vibrations of a WTG can be damped much better with a sandwich tower section.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-df1200d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"df1200d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-6befb6c\" data-id=\"6befb6c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0f4d33f elementor-widget elementor-widget-image\" data-id=\"0f4d33f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"655\" height=\"600\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Tragfaehigkeit_04_f874601aad.jpg\" class=\"attachment-large size-large wp-image-6073\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Tragfaehigkeit_04_f874601aad.jpg 655w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Tragfaehigkeit_04_f874601aad-300x275.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Tragfaehigkeit_04_f874601aad-240x220.jpg 240w\" sizes=\"(max-width: 655px) 100vw, 655px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Comparison of normal force capacities\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-22c1391\" data-id=\"22c1391\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4f9ac7c elementor-widget elementor-widget-image\" data-id=\"4f9ac7c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"576\" height=\"521\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/Massenbilanz.jpg\" class=\"attachment-large size-large wp-image-6072\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/Massenbilanz.jpg 576w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/Massenbilanz-300x271.jpg 300w\" sizes=\"(max-width: 576px) 100vw, 576px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Comparison of tonnages\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-56d4e65\" data-id=\"56d4e65\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-da11e86 elementor-widget elementor-widget-image\" data-id=\"da11e86\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"582\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Frequenzspektrum_04_b44db545ca.jpg\" class=\"attachment-large size-large wp-image-6071\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Frequenzspektrum_04_b44db545ca.jpg 800w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Frequenzspektrum_04_b44db545ca-300x218.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Frequenzspektrum_04_b44db545ca-768x559.jpg 768w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Frequenzspektrum_04_b44db545ca-110x80.jpg 110w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Frequency spectrum with comparison of the structural damping\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7cbb6a2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7cbb6a2\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-795b499\" data-id=\"795b499\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fc77b7f elementor-widget elementor-widget-heading\" data-id=\"fc77b7f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Comparison of the tower cross-sections\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3eda35 elementor-widget elementor-widget-text-editor\" data-id=\"b3eda35\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\n<table id=\"tablepress-3\" class=\"tablepress tablepress-id-3\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Comparison parameters<\/th><th class=\"column-2\">Steel tower section<\/th><th class=\"column-3\">Sandwich tower section<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Steel grade<\/td><td class=\"column-2\">S235<\/td><td class=\"column-3\">S460<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Steel strength<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">200%<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Steel tonnage<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">50%<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Weld volume<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">15%<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Filler<\/td><td class=\"column-2\">0%<\/td><td class=\"column-3\">100%<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Bending moment resistance<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">up to 130%<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Normal force resistance<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">up to 170%<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Sheet thicknesses<\/td><td class=\"column-2\">eg, 50mm<\/td><td class=\"column-3\">eg, 2 x 12mm<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">Structural damping<\/td><td class=\"column-2\">100%<\/td><td class=\"column-3\">about 400%<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">Annular flanges<\/td><td class=\"column-2\">2<\/td><td class=\"column-3\">0 , Sandwich Joint<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">Bolts<\/td><td class=\"column-2\">about 150<\/td><td class=\"column-3\">0 , Sandwich Joint<\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\">Shell stability<\/td><td class=\"column-2\">about 80% (Kappa_2 Wert)<\/td><td class=\"column-3\">>100%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-3 from cache -->\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-53d1354 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"53d1354\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ad292ed\" data-id=\"ad292ed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-28f861a elementor-widget elementor-widget-heading\" data-id=\"28f861a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Manufacturing technology\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0dfa371 elementor-widget elementor-widget-text-editor\" data-id=\"0dfa371\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"main-content\"><div class=\"content\"><div id=\"c881\" class=\"csc-default\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><div class=\"csc-textpic-text\"><p class=\"bodytext\">Is favored as a combination of steel sandwich tower. The sandwich cross-section is provided only in the lower part of the tower, in the high stabilities and large shell thicknesses are required. With the use of two thinner and higher firmer steel pipes reduces the net welding time to 15%, making the extra effort with the other manufacturing steps is partially compensated. For the tower sections with D&gt; 4.3m, a new production concept with longitudinally oriented partial shells was developed, covering not only the transportation problem solved over land, but also the number of fatigue-critical welds is minimized.<\/p><p class=\"bodytext\">For more details about the new production concept, feel free to\u00a0<a class=\"internal-link\" title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/kontakt\/\">contact us<\/a>.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-92f0296 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"92f0296\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-410b96b\" data-id=\"410b96b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4182f9a elementor-widget elementor-widget-heading\" data-id=\"4182f9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Connection technology\n<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3f1c044 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3f1c044\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-ad5a6be\" data-id=\"ad5a6be\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0dc479c elementor-widget elementor-widget-text-editor\" data-id=\"0dc479c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h6>Connection between the individual sections<\/h6><p>Von\u00a0SKI\u00a0wird eine neue Verbindungstechnik zwischen den Turmsektionen favorisiert, die ohne erm\u00fcdungskritische Ringflansche und wartungsintensive Schrauben auskommt. Der so genannte\u00a0<a title=\"damage accumulation hypothesis\" href=\"https:\/\/ski-consult.de\/en\/sandwich-joints\/\">Sandwich Joint<\/a>\u00a0is one of the two-shear tube-in-tube connections, in which the forces are transmitted over a certain overlap length. The upper steel tube section is produced in a conventional steel construction and levied on the construction site with a crane in the not yet backfilled annular gap between the inner and outer tubes of the lower sandwich section.<\/p><p>Die Trag- und Erm\u00fcdungsfestigkeit des Sandwich Joints l\u00e4sst sich durch<br \/>die Anordnung von Schubrippen entlang den Rohrmantelfl\u00e4chen signifikant<br \/>steigern (s. Fachaufsatz in der Bautechnik 11\/2009<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-39483ae\" data-id=\"39483ae\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8976c77 elementor-widget elementor-widget-image\" data-id=\"8976c77\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"305\" height=\"600\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwich_joint_04_8e2342feea.jpg\" class=\"attachment-full size-full wp-image-6070\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwich_joint_04_8e2342feea.jpg 305w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_sandwich_joint_04_8e2342feea-153x300.jpg 153w\" sizes=\"(max-width: 305px) 100vw, 305px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Sandwich joint between the sections\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-f607a0a\" data-id=\"f607a0a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d9cbcbe elementor-widget elementor-widget-image\" data-id=\"d9cbcbe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"261\" height=\"600\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_basement_connection_04_6a5274ef69.jpg\" class=\"attachment-full size-full wp-image-6069\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_basement_connection_04_6a5274ef69.jpg 261w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_basement_connection_04_6a5274ef69-131x300.jpg 131w\" sizes=\"(max-width: 261px) 100vw, 261px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Connection to the foundation section\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9103cd4 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9103cd4\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-80f8ca7\" data-id=\"80f8ca7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-084b43a elementor-widget elementor-widget-text-editor\" data-id=\"084b43a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h6>Connection to the foundation sections<\/h6><p>In analogy to the sandwich joint is planned for the connection to the foundation section also has a double-shear tube-in-tube connection. This additional ring flange and numerous bolts can be saved. Finally high stress concentrations can be prevented, because the so-called sandwich joints having no eccentricities.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-46f2e71 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"46f2e71\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-bb16b82\" data-id=\"bb16b82\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-24f4d9b elementor-widget elementor-widget-heading\" data-id=\"24f4d9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Transport<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-c2ae736 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"c2ae736\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d9a2dda\" data-id=\"d9a2dda\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2411407 elementor-widget elementor-widget-image\" data-id=\"2411407\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"309\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Transport_04_50da861ff1.jpg\" class=\"attachment-large size-large wp-image-6068\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Transport_04_50da861ff1.jpg 800w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Transport_04_50da861ff1-300x116.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Transport_04_50da861ff1-768x297.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Land transport\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-80d71c7\" data-id=\"80d71c7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-b881da4 elementor-widget elementor-widget-text-editor\" data-id=\"b881da4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"main-content\">\n<div class=\"content\">\n<div id=\"c881\" class=\"csc-default\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<div class=\"csc-textpic-text\">\n<p class=\"bodytext\">With regard to transport, the new production concept has the decisive advantage that the height of the partial shells is less than 4.3 m, i.e. the clearance height of bridges is maintained (see following figure on the right). Furthermore, all partial shells for the inner and outer pipe fit next to each other on one truck. In this respect, only two trucks are necessary for the transport of a sandwich tower section, which, moreover, do not have to be marked as heavy transporters with excess width. The length-oriented production favored by SKI solves the transport problem for steel and sandwich towers with diameters greater than 4.3 m, as shown in the figure. In contrast, the circumferential production does not yet allow the overland transport of steel tower sections with diameters &gt; 4.3 m. <br><\/p><\/div><div class=\"csc-textpic-imagewrap\"><div class=\"csc-textpic-center-outer\">\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-94fe3e8 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"94fe3e8\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-948020f\" data-id=\"948020f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-67b6aac elementor-widget elementor-widget-heading\" data-id=\"67b6aac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Assembly technology<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-10f5e8f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"10f5e8f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d1fd8cc\" data-id=\"d1fd8cc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f607683 elementor-widget elementor-widget-text-editor\" data-id=\"f607683\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><div id=\"c881\"><div><div><div><div><div><div><div><div>In the following figure, the injection process is shown, in which the first sandwich tower section is placed on a foundation section. However, before the injection process can be performed indoor and outdoor pipe must be aligned and fixed to each other. Spacers used in the factory provide a uniform annular gap between two pipes safely. At the base of the tower more intake valves are provided circumferentially distributed. The injection tubes can also be routed through the door opening, so that the section area of the inside and outside can be filled. Characterized the pump power is increased, allowing a smooth increase of the filling material.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7ac44e7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7ac44e7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-12b14ed\" data-id=\"12b14ed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4836e63 elementor-widget elementor-widget-text-editor\" data-id=\"4836e63\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div><div><div id=\"c881\"><div><div><div><div><div><div><div><div><p>An essential aspect of the installation is the injection process, which can be &lt; 4.3m at the factory for tower sections with D. The vertical position of the tower shells is preferred, because no deformations, in particular deflections then remain as a result of its own weight in the later composite cross-section.<\/p><p>For sandwich tower sections with diameters greater than D = 4.3m is favored injection at the site, where you can also find inner and outer tube in a vertical position. For the injection process exist mobile injection techniques for both the grout and for the elastomers. The extent of the injection process can be performed in a similar manner as in the work-site.<\/p><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-3516d31\" data-id=\"3516d31\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-74d36c6 elementor-widget elementor-widget-image\" data-id=\"74d36c6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"503\" src=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Injektionsvorgang_04_fdde5b0ad5.jpg\" class=\"attachment-large size-large wp-image-6067\" alt=\"\" srcset=\"https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Injektionsvorgang_04_fdde5b0ad5.jpg 800w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Injektionsvorgang_04_fdde5b0ad5-300x189.jpg 300w, https:\/\/ski-consult.de\/wp-content\/uploads\/2020\/07\/csm_Injektionsvorgang_04_fdde5b0ad5-768x483.jpg 768w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Injection process at the construction site\n<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Ein Turm in Sandwichbauweise Die Leistung und Gr\u00f6\u00dfe von Windenergieanlagen ist in den letzten Jahren immer weiter angestiegen. Damit erh\u00f6hen sich zwangsl\u00e4ufig auch die Anforderungen an die Turmkonstruktionen, die bislang als Stahlrohr-, Spannbeton- oder Fachwerkturm zur Ausf\u00fchrung kommen. Als Alternative dazu wurde ein Sandwichturm entwickelt, mit dem die Schalenstabilit\u00e4t und Tragf\u00e4higkeit gesteigert werden kann. Dadurch&#8230;<\/p>","protected":false},"author":4,"featured_media":0,"parent":6049,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-6065","page","type-page","status-publish","hentry","no-post-thumbnail"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sandwichturm &#8226; SKI Ingenieurges. mbH<\/title>\n<meta name=\"description\" content=\"Sandwichturm &#8226; SKI kann Berechnungen inkl. 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