rc梁正截面承载力试验的计算机模拟 exploration and practice of teching methods on bending failure of rc beam.pdf
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第34卷第5期 四川建筑科学研究
Sichuan Science 47
2008年10月 Building
RC梁正截面承载力试验的计算机模拟
古 松
(西南科技大学土木工程与建筑学院,四川绵阳621002)
摘要:钢筋混凝土梁正截面破坏过程是一个多阶段的非线性过程。传统的纯弯试验是一种间接的测试方法,不能直观反映
梁截面内部的应力应变过程;而且受试验条件限制,通常只能进行适筋梁的试验,不能对少筋梁和超筋梁进行荷载试验。基
于平截面假定,采用MATLAB程序编写了梁的正截面弯矩一曲率关系曲线计算程序。通过程序,可更直接地描述混凝土梁的
受弯破坏过程,且可以模拟多种配筋条件。
关键词:钢筋混凝土梁;正截面破坏;有限元方法;弯矩一曲率曲线
中图分类号:TUl7 文献标识码:A 文章编号:1008—1933(2008)05—047一03
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words:reinforcedfailure;finitemethod;M一妒curve
Key beam;bending
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