{"id":65,"date":"2019-08-20T10:46:58","date_gmt":"2019-08-20T08:46:58","guid":{"rendered":"https:\/\/www.gsa-technology.ch\/?page_id=65"},"modified":"2025-03-27T07:52:18","modified_gmt":"2025-03-27T06:52:18","slug":"gsa-fw","status":"publish","type":"page","link":"https:\/\/www.gsa-technology.ch\/en\/gsa-technologie\/gsa-fw\/","title":{"rendered":"GSA-FW"},"content":{"rendered":"\n<div class=\"wp-block-media-text\"><figure class=\"wp-block-media-text__media\"><img decoding=\"async\" width=\"337\" height=\"208\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/09\/Skizze-GSA-FW.png\" alt=\"\" class=\"wp-image-561 size-full lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/09\/Skizze-GSA-FW.png 337w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/09\/Skizze-GSA-FW-300x185.png 300w\" data-sizes=\"(max-width: 337px) 100vw, 337px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 337px; --smush-placeholder-aspect-ratio: 337\/208;\" \/><\/figure><div class=\"wp-block-media-text__content\">\n<p>When using frameworks instead of solid beams, building materials can be used more efficiently. The timber is mainly subjected to tensile and compressive section forces parallel to the fibre, so that the advantages in terms of both strength and rigidity can be achieved. The efficiency of the connections at the junctions is crucial for cost-effectiveness. The structure can be optimised to the highest load level by the targeted use of hardwood.<\/p>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-cdt-toggle\"><div class=\"wp-block-cdt-toggle-header\"><h2>Draft<\/h2><p><\/p><\/div><div class=\"wp-block-cdt-toggle-extended\"><div>\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Forms of girders<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The construction conditions are highly important in the selection of the optimal girder. We will be pleased to provide you with a non-binding consultation for a specific project. | <a rel=\"noreferrer noopener\" href=\"https:\/\/www.gsa-technology.ch\/en\/contact\/\" data-type=\"URL\" data-id=\"https:\/\/www.gsa-technology.ch\/en\/contact\/\" target=\"_blank\">Support<\/a><br>For a truss to be efficient and the standard static simplifications permissible, the beam height should be no more than 1\/7 of the mean girder height (lower edge \u2013 upper edge). <\/p>\n<\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"1024\" height=\"588\" data-src=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Fachwerke_EN-1024x588.jpg\" alt=\"\" class=\"wp-image-1142 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Fachwerke_EN-1024x588.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Fachwerke_EN-300x172.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Fachwerke_EN-768x441.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Fachwerke_EN.jpg 1741w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/588;\" \/><\/figure>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Transport dimensions<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>A girder can be prefabricated in the factory provided the following dimensions are not exceeded:<br>Length: 35 m<br>Height: 5 m (transport width)<br>Weight: 20 tons<br><br>If larger components are required, please contact <a href=\"https:\/\/www.gsa-technology.ch\/en\/contact\/\" data-type=\"URL\" data-id=\"https:\/\/www.gsa-technology.ch\/en\/contact\/\" target=\"_blank\" rel=\"noreferrer noopener\">us<\/a> well in advance.<\/p>\n<\/div>\n<\/div>\n<\/div><\/div><button class=\"wp-block-cdt-toggle-toggle\"><\/button><\/div>\n\n\n\n<a name=\"VD\"><\/a>\n\n\n\n<div class=\"wp-block-cdt-toggle\"><div class=\"wp-block-cdt-toggle-header\"><h2>Pre-dimensioning<\/h2><p><\/p><\/div><div class=\"wp-block-cdt-toggle-extended\"><div>\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Joiners<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>The following Information is restricted to two strut connectors per Joint.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Joint rigidity for struts<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"579\" height=\"198\" data-src=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Vorbemessung_Streben_EN.png\" alt=\"\" class=\"wp-image-1135 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Vorbemessung_Streben_EN.png 579w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2020\/01\/Vorbemessung_Streben_EN-300x103.png 300w\" data-sizes=\"(max-width: 579px) 100vw, 579px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 579px; --smush-placeholder-aspect-ratio: 579\/198;\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>For timber frames in softwood, rigidity to a design level of 12&nbsp;N\/mm\u00b2 is recommended for the pre-dimensioning. This stress refers to the gross cross section of the wood. Naturally, humidity and load duration with the usual coefficients must also be taken into account. A view of the measurement values according to Norm SIA 265 immediately shows that at least GL28h is required for such large connected loads, so as to be able to provide verification in net cross section. In addition, the cross sectional dimensions are to be adjusted to the construction&#8217;s anchor spacing. The following preferred dimensions result, depending on the rod diameter required:<\/p>\n\n\n\n<p>M16 \u2192 strut widths [mm]: 120, 200, 280<br>M20 \u2192 strut widths [mm]: 160, 240, 320, 400, etc.<br>To avoid confusion, only one GSA diameter should be used per timber frame. <\/p>\n\n\n\n<p>For girders with parallel beams, it often makes sense to execute the first 1-2 struts in hardwood. These are around 50% more efficient than softwood versions. When using BauBuche struts, a calculated tensile stress of 18&nbsp;N\/mm\u00b2 is also recommended as an initial estimation. Higher efficiency factors in the struts are possible. However, these require mostly hardwood reinforcements in the beams.<\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Girder width<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>In the ideal case, the beams are at least 20 mm wider than the largest strut and have as square a cross section as possible.  <\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Upper beam<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>In most cases, the upper beam must be measured with the gross cross-section under pressure with flexion. The threaded rods only lead to a weakening if the flexural tension from the support moment cannot be overridden by the normal force.  <\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Lower beam<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" width=\"337\" height=\"286\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/09\/NettoQS.png\" alt=\"\" class=\"wp-image-690 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/09\/NettoQS.png 337w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/09\/NettoQS-300x255.png 300w\" data-sizes=\"(max-width: 337px) 100vw, 337px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 337px; --smush-placeholder-aspect-ratio: 337\/286;\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>For the lower beam, the verifications are to be performed for each joint at the net cross section. <br>For this, the calculated beam width per 80 mm brace width is to be reduced to 22 mm. <br> <br>Example: <br>Beam 400\/400<br>Strut A 240\/240<br>Strut B 320\/240 \u2192 320\/80 = 4<br> <br>Beam cross-section for verification N+M: <br>400-4*22 = 312 wide \/ 400 high <\/p>\n<\/div>\n<\/div>\n<\/div><\/div><button class=\"wp-block-cdt-toggle-toggle\"><\/button><\/div>\n\n\n\n<div class=\"wp-block-cdt-toggle\"><div class=\"wp-block-cdt-toggle-header\"><h2>Modelling<\/h2><p><\/p><\/div><div class=\"wp-block-cdt-toggle-extended\"><div>\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Struts<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>An articulated model of the struts is permitted when using the GSA technology. The requirements for this are outlined in the <a rel=\"noreferrer noopener\" aria-label=\" (\u00f6ffnet in einem neuem Tab)\" href=\"https:\/\/www.gsa-technology.ch\/en\/gsa-technologie\/gsa-grundlagen-2\/\" target=\"_blank\">Basics<\/a>.<br>Reduction according to Norm SIA 265 <a aria-label=\" (\u00f6ffnet in neuem Tab)\" rel=\"noreferrer noopener\" href=\"\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/256_53622_EN.jpg\" target=\"_blank\">clause 5.3.6.2.2<\/a> is not required. <\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Rigidity<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>For timber frames in softwood, the struts may also be modelled in the area of the joint with the gross cross section of the wood. <\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Beams<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>If the beams are under load between the joints, the resultant stresses are to be taken into account.  <\/p>\n<\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-columns has-2-columns is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Centring<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<p>Centring of the bar axis in a joint is desirable. In accordance with Norm SIA 265, the simplified calculation is made as per <a aria-label=\" (\u00f6ffnet in neuem Tab)\" href=\"\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/256_53612_EN.jpg\" target=\"_blank\" rel=\"noreferrer noopener\">clause 5.3.6.1.2<\/a>  if the axes of the diagonals are still within the faces of the continuous beam. However, the stresses resulting from local force transmissions must be taken into account. <\/p>\n<\/div>\n<\/div>\n<\/div><\/div><button class=\"wp-block-cdt-toggle-toggle\"><\/button><\/div>\n\n\n\n<p><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2025\/03\/Produktdatenblatt_GSA-FW_EN.pdf\" data-type=\"URL\" data-id=\"\/en\/wp-content\/uploads\/sites\/2\/2022\/02\/Produktdatenblatt_GSA-FW_EN.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Poster GSA-FW<\/a><br><a href=\"\/en\/wp-content\/uploads\/sites\/2\/2022\/02\/Ausschreibungstext-FW.pdf\" data-type=\"URL\" data-id=\"\/en\/wp-content\/uploads\/sites\/2\/2022\/02\/Ausschreibungstext-FW.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">Tender text GSA-FW<\/a> (german)<\/p>\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"373\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1-1024x576.jpg\" alt=\"\" class=\"wp-image-373 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-1.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/576;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"374\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2-1024x576.jpg\" alt=\"\" class=\"wp-image-374 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-2.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/576;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"375\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3-1024x576.jpg\" alt=\"\" class=\"wp-image-375 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-3.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/576;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"376\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4-1024x576.jpg\" alt=\"\" class=\"wp-image-376 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-4.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/576;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"377\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5-1024x576.jpg\" alt=\"\" class=\"wp-image-377 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-5.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/576;\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6.jpg\" target=\"_blank\" rel=\"noopener\"><img decoding=\"async\" width=\"1024\" height=\"576\" data-id=\"378\" data-src=\"https:\/\/www.gsa-technology.ch\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6-1024x576.jpg\" alt=\"\" class=\"wp-image-378 lazyload\" data-srcset=\"https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6-1024x576.jpg 1024w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6-300x169.jpg 300w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6-768x432.jpg 768w, https:\/\/www.gsa-technology.ch\/en\/wp-content\/uploads\/sites\/2\/2019\/08\/gsa-fw-6.jpg 1920w\" data-sizes=\"(max-width: 1024px) 100vw, 1024px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1024px; 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The timber is mainly subjected to tensile and compressive section forces parallel to the fibre, so that the advantages in terms of both strength and rigidity can be achieved. The efficiency of the connections at the junctions is crucial for cost-effectiveness. 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