首页 | 本学科首页   官方微博 | 高级检索  
     检索      

含钢率对方钢管混凝土框架延性影响的有限元分析
引用本文:卢明奇.含钢率对方钢管混凝土框架延性影响的有限元分析[J].三峡大学学报(自然科学版),2006,25(6):504-508.
作者姓名:卢明奇
作者单位:北京交通大学,土木建筑工程学院,北京,100044
摘    要:含钢率是影啊钢管混凝土框架结构延性的重要因素.为研究含钢率对方钢管混凝土框架结构延性的影响,建立了方钢管混凝土框架结构的非线性有限元分析模型,通过与方钢管混凝土框架结构在反复荷载作用下试验所得的滞回曲线进行对比,发现该模型的计算结果较为精确,可以应用于方钢管混凝土框架的结构分析中.利用此模型对在低周反复荷载作用下柱含钢率不同的方钢管混凝土框架结构进行了有限元分析,对比研究了其滞回曲线和位移延性系数,得出了随着柱合钢率的增加方钢管混凝土框架延性提高的结论.

关 键 词:含钢率  方钢管混凝土  框架  延性  有限元
文章编号:1672-948X(2006)06-0504-05
修稿时间:2006年9月24日

Finite Element Analysis of Effect of Steel Ratio on Ductility of Concrete-Filled Rectangular Tubular Frames
Lu Mingqi.Finite Element Analysis of Effect of Steel Ratio on Ductility of Concrete-Filled Rectangular Tubular Frames[J].Journal of China Three Gorges University(Natural Sciences),2006,25(6):504-508.
Authors:Lu Mingqi
Abstract:Steel ratio is one of the most important factors affecting the ductility of concrete-filled steel tubular frames.In order to study its effect on the ductility of concrete-filled rectangular tubular frame,a nonlinear finite element analysis model is proposed.Compared with the experimental hysteretic curve,it is shown that the computational results will to be highly accurate,so as to show that this model proposed could be applied to structural analysis of concrete-filled rectangular tubular frames.Then the model was used in the finite element analysis of concrete-filled rectangular tubular frames with different steel ratios of columns under low-reversed cyclic loading.Comparing the computational hysteretic curves and displacement ductility ratios,it could be concluded that the ductility of CFRT frames was improved with the increasing of the steel ratios of CFRT columns.
Keywords:steel ratio  concrete-filled rectangular steel tube  frame  ductility  finite elements
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号