基于ABAQUS的传统风格建筑钢筋混凝土梁-柱节点有限元分析  

Finite element analysis of RC column-beam joint built in traditional style based on ABAQUS

作　　者：谢启芳[1] 李朋 崔雅珍[1] 隋? 苏未 

机构地区：[1]西安建筑科技大学土木工程学院,陕西西安710055 [2]金丰环球装饰工程(天津)有限公司,天津300171

出　　处：《世界地震工程》2016年第1期245-253,共9页World Earthquake Engineering

基　　金：国家自然科学基金项目(51208411);陕西省青年科技新星项目(2013KJXX-56);陕西省教育厅科研计划项目(2013JK0983);国机集团科技发展基金资助项目(13科192号)

摘　　要：在传统风格建筑钢筋混凝土梁-柱节点抗震性能试验的基础上,采用ABAQUS非线性有限元软件对传统风格建筑钢筋混凝土梁-柱节点进行单调荷载作用下的有限元分析。通过对模型的有限元分析,得到了此类节点的变形图、混凝土受拉损伤分布图、最大主塑性应变云图和单调荷载作用下的P-Δ骨架曲线等。并且对节点体积配箍率、轴压比及上梁和下梁间距等影响此类节点抗剪承载力的主要因素进行了分析。结果表明:利用ABAQUS对传统风格建筑钢筋混凝土梁-柱节点的有限元分析结果与试验结果符合较好;随体积配箍率的增大,节点抗剪承载力提高幅度降低;随轴压比的增大,节点抗剪承载力和延性均得到不同程度的提高;上梁和下梁间距的变化对节点抗剪影响较小,考虑到上梁和下梁的协调性及建筑的美观性,建议在不影响建筑的美观基础上,上梁和下梁间距可以适当增大,以提高节点的抗剪能力。On the basis of seismic performance testing of RC column-beam joint built in traditional style,a finite element analysis is conducted on the RC column-beam joint built in traditional style under the effect of monotonic by ABAQUS nonlinear finite element software. Through these analysis,deformation pattern,concrete tension damage scatter gram,maximum main plastic strain nephogram,skeleton curve of monotonic load effect etc. of these joints are obtained. The main factors which affect the shear capacity of this type joints such as the parameters of volume-strip ratio,axial compression ratio and the spacing of beams were analyzed. The consequences indicate that the finite element analysis results of RC column-beam joint built in traditional style which used ABAQUS coincide well with the experimental results; While the volume-stirrup ratio increases,the growth of the shear capacity to joints decreases; With the increase of axial compression ratio,shear capacity and ductility of joints are improved to different degrees; The change of the upper and lower beam spacing of joints has little impact on shear capacity.Considering the coordination of the upper and lower beams and aesthetics of architectural,it is suggest that as long as it doesn＇t effect the beauty of the building,the upper and lower beam spacing can be increased properly to improve the shearing ability of the joints.

关 键 词：传统风格现代建筑 钢筋混凝土梁-柱节点 ABAQUS 非线性有限元分析 

分 类 号：TU375[建筑科学—结构工程]