SRC柱-RC梁混合节点非线性有限元分析  

Nonlinear Finite Element Analysis of SRC Column-RC Beam Hybrid Joints

作　　者：朱奇云[1] 郭子雄[1] 

机构地区：[1]华侨大学土木工程学院,福建泉州362021

出　　处：《华侨大学学报（自然科学版）》2010年第4期453-457,共5页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(50978107);福建省自然科学基金资助项目(E0810021);厦门市科技计划项目(3502Z20093029)

摘　　要：在SRC柱-RC梁混合节点试验的基础上,采用通用有限元分析软件Ansys,建立考虑材料非线性的有限元分析模型.在单调加载作用下,对6个SRC柱-RC梁混合节点进行非线性数值模拟.改变梁纵筋配筋率和节点核心区配箍率,通过对荷载-位移曲线的分析,并与试验结果的对比,研究强节点系数对SRC柱-RC梁混合节点的破坏形式、承载力、延性等影响.结果表明,有限元模拟得到的荷载-位移曲线与试验结果吻合较好,从而验证采用有限元数值模拟开展SRC柱-RC梁混合节点研究的可行性.Based on the experimental results of steel reinforced concrete（SRC） column-RC beam hybrid joints,the finite element model considering material nonlinear is established by Ansys software.Nonlinear numerical simulation of six SRC column-RC beam hybrid joints under the monotonic loading is carried out.According to the analysis of load-displacement curves and comparison with experimental results,the influence of strength ratio of joint to beam on the failure modes,strength and ductility of specimens is investigated for different longitudinal reinforcement ratios of beam and stirrup ratios of joint core.The analysis results indicate that the load-displacement curves of six specimens are in good agreement with the experimental results,so the finite element numerical simulation of SRC column-RC beam hybrid joints is feasible.

关 键 词：SRC柱-RC梁混合节点 强节点系数 非线性 有限元分析 

分 类 号：TU375.102[建筑科学—结构工程]