https://wiki.struct4u.com/w/index.php?action=history&feed=atom&title=XBeam2D_Deflection_Calculation 2026-05-09T06:05:03Z Revision history for this page on the wiki MediaWiki 1.43.0 https://wiki.struct4u.com/w/index.php?title=XBeam2D_Deflection_Calculation&diff=986&oldid=prev 2022-09-06T04:54:21Z

<p>Created page with &quot;===Deflection calculation timber Eurocode=== The deflection calculation according to the Eurocode has several parts: *&#039;&#039;&#039;w-inst :&#039;&#039;&#039; Elastic deflection according with the standard elastic modulus of the timber type due to the dead load. *&#039;&#039;&#039;w-creep&#039;&#039;&#039;: Deflection due to creep. 1. Deflection due to load combination SLS 6.16b with normal elastic modulus. 2. Deflection due to combination 6.16b with elastic modulus is Emean/(1+kdef). w-creep=2-1. *&#039;&#039;&#039;w-k:&#039;&#039;&#039; Deflection due t...&quot;</p> <p><b>New page</b></p><div>===Deflection calculation timber Eurocode===<br /> The deflection calculation according to the Eurocode has several parts:<br /> *&#039;&#039;&#039;w-inst :&#039;&#039;&#039; Elastic deflection according with the standard elastic modulus of the timber type due to the dead load.<br /> *&#039;&#039;&#039;w-creep&#039;&#039;&#039;: Deflection due to creep. 1. Deflection due to load combination SLS 6.16b with normal elastic modulus. 2. Deflection due to combination 6.16b with elastic modulus is Emean/(1+kdef). w-creep=2-1.<br /> *&#039;&#039;&#039;w-k:&#039;&#039;&#039; Deflection due to the 6.14 combination(SLS).<br /> *&#039;&#039;&#039;w-fin&#039;&#039;&#039;: w-k + w-creep<br /> *&#039;&#039;&#039;w-add&#039;&#039;&#039;: w-k + w-creep - w-inst<br /> ===Deflection calculation concrete Eurocode===<br /> The physic non-linear properties are used in the calculation using the M-kappa diagram. The stiffness differs per point in the beam due to reinforcement/cracked/non-cracked.<br /> <br /> The beam is separated into parts. For each part the non-linear properties are calculated based on the reinforcement and M-kappa diagram. Separate calculation are made for the ULS and SLS.<br /> <br /> <br /> [[File:XBeam2DCalculationDeflectionConcrete1.png|629x629px|link=http://68.183.11.126/index.php/File:XBeam2DCalculationDeflectionConcrete1.png]]<br /> <br /> <br /> [[File:XBeam2DCalculationDeflectionConcrete2.png|630x630px|link=http://68.183.11.126/index.php/File:XBeam2DCalculationDeflectionConcrete2.png]]<br /> <br /> <br /> &#039;&#039;&#039;w-inst :&#039;&#039;&#039; Elastic deflection according with the standard elastic modulus of the timber type due to the dead load.(short term EI)<br /> <br /> &#039;&#039;&#039;w-creep&#039;&#039;&#039;: Deflection due to creep. 1. Deflection due to load combination SLS 6.16b with short term EI. 2. Deflection due to combination 6.16b with elastic modulus is long term EI. w-creep = w;qp;long - w;qp;short.<br /> <br /> &#039;&#039;&#039;w-k:&#039;&#039;&#039; Deflection due to the 6.14 combination(SLS).<br /> <br /> &#039;&#039;&#039;w-fin&#039;&#039;&#039;: w-k + w-creep<br /> <br /> &#039;&#039;&#039;w-add&#039;&#039;&#039;: w-k + w-creep - w-inst</div>

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