钢筋混凝土组合截面构件最小配筋计算方法及算例

 

杜 志 刚

(同济大学 交通运输工程学院

 

  公路桥规[1]JTJ D622004给出的钢筋混凝土构件向受拉钢筋最小配筋率的基础上,本文充分考虑到组合梁的横截面几何特性,用Mathematica 4.0计算任意截面梁向受拉钢筋最小配筋率,并对其在旧桥改造中的应用特例进行分析,可供工程技术人员参考使用。

关键词  筋混凝土; 最小配筋率; 组合截面

Calculation Method and Example of Min.Bar Arrangement in Structural Part of Steel Combinatorial Section

 

Du Zhi-gang

 

Abstract The paper introduced a method caculating Min.Bar arrangement longitudinal tensional reinforce by using Mathematica 4.0, fully considering the geometrical characteristic of the section of the combinatorial beam, and given an special example applying in the reconstruct of the old arch-bridge, analyzed its characteristics for engineering reference.

Keyword Steel Concrete Min.Bar Arrangement Ratio Combinatorial Section