波浪腹板工形构件抗剪承载力设计理论及试验研究  

A theoretical and experimental study of the shear strength of H-Shaped members with sinusoidal corrugated webs

作　　者：郭彦林[1] 张庆林[1] 王小安[1] 

机构地区：[1]清华大学,北京100084

出　　处：《土木工程学报》2010年第10期45-52,共8页China Civil Engineering Journal

摘　　要：波形腹板工形构件主要有三种波形形式,即梯形、三角形与正弦波浪波形等。在总结前人对梯形腹板抗剪承载力研究成果的基础上,对波浪腹板工形构件的腹板抗剪性能进行系统研究。针对波浪腹板的屈曲特性提出弹性剪切屈曲荷载的计算公式,给出计算公式的适用范围。基于弹塑性大挠度有限元分析研究波浪腹板的弹塑性屈曲性能以及屈曲后行为,揭示其抗剪承载力极限状态以及缺陷敏感性,提出弹塑性屈曲荷载的实用计算公式,建立波浪腹板抗剪承载力设计方法。进行6个波浪腹板短梁试件的抗剪承载力试验,揭示波浪腹板的抗剪极限状态与初始屈曲及屈曲后性能之间的关系。试验结果与有限元结果吻合很好,推荐的设计公式合理。Currently,the typical profiles of corrugated webs,trapezoidal,triangular and sinusoidal,have been widely used in Europe and Australia.The previous research on the shear capacity of trapezoidal corrugated webs is summarized,and a systemic study on the shear behavior of H-shaped members with sinusoidal corrugated webs is presented.Simplified formulas for calculating the local and global buckling loads of sinusoidal webs are proposed,respectively,and their applicability assessed.Based on results from finite element analysis,an equation for predicting the ultimate shearing loads of sinusoidal webs is provided.A series of shearing tests of 6 specimens is carried out in Tsinghua University.All of the test results are in good agreement with the FEA results,and both have confirmed the rationality of the proposed equations.

关 键 词：波浪腹板 抗剪承载力 试验研究 设计公式 

分 类 号：TU392.5[建筑科学—结构工程]