摘要
本文主要研究了钢管混凝土短肢组合剪力墙在轴心受压作用下的整体稳定承载力的设计方法。利用非线性有限元分析软件Abaqus建立钢管混凝土短肢组合剪力墙模型,之后将数值模拟的结果和试验结果进行对比以校核数值模型的准确性。随后采用此模型进行参数分析,分析了现有设计公式在不同钢管厚度、混凝土强度和截面高宽比情况下的适用性。分析结果表明公式计算的精度与混凝土对于承载能力贡献相关。根据以上发现对于现有公式进行修改后,得到计算结果与有限元分析吻合地更好。
In this paper,the design method of the global stability bearing capacity of the CFST short-legged composite shear wall under axial compression is studied.The nonlinear finite element analysis software Abaqus was used to establish the numerical models of the CFST short-legged composite shear walls.Then the numerical simulation results were compared with the experimental results to check the accuracy of the numerical models.This model was then used for parameter analysis,and the applicability of the existing design formula in different steel tube thickness,concrete strength and section aspect ratio was analyzed.The analysis results show that the accuracy of the formula calculation is related to the contribution of concrete to the bearing capacity.After modification of the existing formula according to the above findings,the calculated results are in good agreement with the finite element analysis.
作者
陈越时
张晓勇
马昕煦
廖显东
CHEN Yueshi;ZHANG Xiaoyong;MA Xinxu;LIAO Xiandong(China Construction Eighth Engineering Division Co.Ltd.,Shanghai 200122,China)
出处
《建筑结构》
CSCD
北大核心
2020年第S01期721-725,共5页
Building Structure
基金
“十三五”国家重点研发计划(2016YFC0701608)
中建八局科技研发项目(2018-33)
关键词
钢管混凝土
短肢剪力墙
轴心受压
整体稳定
concrete filled steel tube
short-leg shear wall
axial compression
global stability
