Refined calculation of lateral bracing systems due to global geometrical imperfections
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- 作者：Dariusz Czepiżak ; Dariusz.Czepizak@pwr.wroc.pl" class="auth_mail" title="E-mail the corresponding author ; Antoni Biegus Antoni.Biegus@pwr.wroc.pl" class="auth_mail" title="E-mail the corresponding author
- 关键词：Lateral bracing ; Truss planar rafters ; Global initial imperfections ; Equivalent forces
- 刊名：Journal of Constructional Steel Research
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：119
- 期：Complete
- 页码：30-38
- 全文大小：1376 K
文摘
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Work shows refined model of calculation of forces due to global, geometrical imperfections of roof rafters.
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Proposed model incorporate the parabolic distribution of compressive forces in the member and its parabolic bow imperfection.
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The lack of verticality described by angle ϕ0 and entire distortion of the main plane of the truss rafter are studied.
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Results have been discussed and illustrated by an example.