(湖南文理学院， 常德 415000)

［摘要］采用双模量弹性理论研究了钢筋混凝土构件正截面承载力的计算。利用钢筋混凝土构件受压应力与应变本构关系，由截面静力平衡条件推导出了采用钢筋混凝土本构关系计算构件正截面承载力的方法，并将该方法应用于受弯构件和短柱的正截面承载力的计算。最后通过算例将该方法的计算结果与相关规范方法的计算结果进行比较。

［关键词］钢筋混凝土; 截面; 承载力; 双模量; 本构关系

中图分类号：TU375       文献标识码：A       文章编号：1002-848X(2014)09-0068-04

Calculation for normal section bearing capacity of reinforced concrete members using the constitutive relation

Wu Xiao, Yang Lijun, Huang Zhigang

（Hunan University of Arts & Science, Changde 415000, China）

Abstract: Normal section bearing capacity of reinforced concrete members was calculated based on bi-modulous elasticity theory. On the basis of the compressive stress-strain constitutive relation of reinforced concrete members, a method for calculating normal section bearing capacity of members based on reinforced concrete constitutive relation was deduced by means of static equilibrium conditions of section. The method was applied in calculating normal section bearing capacity of flexural members and short columns. In the end, the calculating results of the method were compared with that of relevant code methods through examples.

Keywords: reinforced concrete; section; bearing capacity; bi-modulous; constitutive relation

*湖南省科技计划项目(湘财企指［2011］65号)，湖南省“十二五”重点建设学科资助项目(湘教发2011［76］)。

通讯作者：杨立军，博士研究生，副教授，Email:yanglj9601@163.com。

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