异形柱双偏压构件正截面承载力试验及设计方法研究

Research on Experiment and Design Method of Specially-shaped Columns Under Eccentric Loading

本文对１０根Ｌ形、４根Ｔ形和４根十形截面钢筋混凝土双向偏压构件进行了试验研究，在此基础上，编制了异形柱极限 承载力电算程序进行理论计算，电算结果与试验结果符合较好。同时提出了无量纲形式的承载力相关曲线，该曲线可以对异形 柱双偏压构件进行配筋设计和承载力验算，其优点是一个无最纲形式的相关曲线包含了多个有量纲形式相关曲线（Ｎ－Ｍ和 Ｍｘ－Ｍｙ），是对目前有量纲相关曲线的一个改进，并介绍了用此曲线进行截面设计和承载力验算的步骤和算例。

Experimental research on specially-shaped columns(10 T-shaped columns, 4 L-shaped columns, 4 cross( + )-shaped columns) subjected to biaxial bending and axial compression was conducted. And a computer program aiming at obtaining the ultimate strength of specially-shaped columns under eccentric loading was also compiled. Good accordance was achieved between experimental results and theoretical ones. Meanwhile dimensionless correlative diagrams were put forward for designing or checking section. The procedure of using these diagrams has been presented with numerical examples given in the paper.