中强螺旋肋钢丝预应力空心板受力性能的数值分析  

A Numerical Analysis of the Mechanical Capability of Hollow and Pre-stressed Concrete Slab with Mid-strength Spiral Rib Steel Wires

作　　者：乔耀科[1] 刘立新[1] 

机构地区：[1]郑州大学土木工程学院,河南郑州450002

出　　处：《郑州大学学报（工学版）》2003年第3期51-56,共6页Journal of Zhengzhou University（Engineering Science）

基　　金：河南省自然科学基金资助项目(0040041800)

摘　　要：为了探讨中强螺旋肋钢丝预应力空心板的受力性能,在以往试验研究的基础上,编制了非线性全过程数值分析程序.运用该程序分析了175块不同跨高比、配筋率和张拉控制应力的空心板,得出了挠度跨度比与以上三因素的回归方程,相对误差在5%以内,进而得出了以延性破坏为目标的张拉控制应力的取值 数值分析结果与试验结果符合较好.In order to study the mechanical capacity of the pre-stressed and hollow concrete slab with mid-strength spiral rib steel wires, based on the test results, this paper explores the nonlinear numerical analysis program The results of numerical analysis show a good agreement with the test results Using the program, 175 slabs with different factors such as the ratio of span to rise, the ratio of reinforcement and the stretching controlling stress are analyzed Thus, with a relative error less than 5 percent, the regress equation of the relationship between the ratio of deflection to span and the above three parameters are obtained In order to control the failure modes of the slabs in the range of ductile failure pattern, the value of the stretching controlling stress is given at last

关 键 词：中强螺旋肋钢丝 预应力空心板 受力性能 数值分析 挠度 跨度 跨高比 配筋率 张拉控制应力 延性破坏 

分 类 号：TU378.5[建筑科学—结构工程]