Proposal of a simplified criterion to estimate second order global effects in reinforced concrete buildings

Abstract This work proposes a new simplified parameter for the calculation of second order global effects, based on the Galerkin’s Method by Weighted Residuals. The proposed criterion was analysed based on 21 planar frames associated with shear wall, reaching results that present satisfactory accuracy compared to the second order global analysis, even for cases where the γz coefficient is greater than 1.30.

摘要 本研究提出了一种基于加权余量伽辽金法（Galerkin’s Method by Weighted Residuals）的新型简化参数，用于二阶整体效应的计算。针对21个带剪力墙的平面框架，本研究对所提准则开展了分析验证，结果显示，相较于二阶整体分析，该准则的计算精度令人满意，即便在γz系数大于1.30的工况下亦是如此。