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钢筋混凝土环形截面受弯构件正截面强度计算
Normal section strength calculation for reinforced concrete flexural member with ring section
【摘要】 在平截面假定的前提下,推导了钢筋混凝土环形截面受弯构件正截面非均匀配筋的计算公式,并且应用M athCAD数学工具软件对某一环形截面均匀及非均匀配筋方式分别进行了不同弯矩作用下的配筋计算。计算结果分析表明,《混凝土结构设计规范》(下简称《规范》)简单套用偏心受压构件的计算公式是不妥的;所推导的新计算公式,补充完善了《规范》中环形截面正截面受弯构件强度计算的内容。
【Abstract】 Based on presumed plane-section,formulas of non-uniform reinforcement for normal section of flexual members with ring section were deduced.Using the MathCAD program,uniform and non-uniform reinforcements of a ring section under different moments were calculated.It is indicated that simply adopting the calculation formula for eccentric flexural members in the Code is not efficient;that the newly deduced formula complements the strength calculation of normal-section flexual members.
【关键词】 受弯构件;
钢筋混凝土;
环形截面;
非均匀配筋;
【Key words】 reinforced concrete; flexural member; ring section; non-uniform reinforcement;
【Key words】 reinforced concrete; flexural member; ring section; non-uniform reinforcement;
【基金】 服务海西重点项目(GY-HX09006)
- 【文献出处】 福建工程学院学报 ,Journal of Fujian University of Technology , 编辑部邮箱 ,2009年03期
- 【分类号】TU375
- 【被引频次】10
- 【下载频次】229