空间钢构架混凝土组合柱偏心受压N_u-M_u方程  

N_u-M_u Equation for Eccentric Compression of Spatial Steel Frame Concrete Composite Columns

作　　者：郑露 唐兴荣[1] ZHENG Lu;TANG Xingrong(School of Civil Engineering, Suzhou University of Science and Technology, Suzhou 215011)

机构地区：[1]苏州科技大学土木工程学院

出　　处：《常州工学院学报》2019年第5期46-54,共9页Journal of Changzhou Institute of Technology

基　　金：建设部科技研究项目(99-031-2)

摘　　要：空间钢构架混凝土柱是一种新型的组合柱,空间钢构架对核心混凝土的约束作用,能有效提高组合柱的承载力和变形能力。为了研究这种组合柱的偏压承载力计算方法,进行了空间钢构架混凝土组合柱的约束机理分析。在此基础上,考虑空间钢构架对核心混凝土的强度提高,建立了空间钢构架混凝土短柱偏心受压Nu-Mu方程,计算值与试验值较吻合,这为今后该类构件在工程中的应用提供了参考。The spatial steel frame concrete column is a new type of combined column.The spatial steel frame restrains the core concrete and can effectively improve the bearing capacity and deformation capacity of the combined column.In order to study the calculation method of the bias capacity of the combined column,based on the analysis of the constraint mechanism of the spatial steel frame concrete composite column,the strength of the core steel frame to the core concrete is considered,and the Nu-Mu equation of the spatial steel frame concrete short column eccentric compression is established.The calculated value and test values are more consistent,which provides a reference for the application of such components in engineering in the future.

关 键 词：空间钢构架混凝土柱 偏心受压 Nu-Mu方程 极限承载力 计算公式 

分 类 号：TU398[建筑科学—结构工程]