基于ABAQUS的哑铃形CFST约束扭转有限元分析  

Analysis of Dumbbell Shaped CFST Under Non-uniform Torsion Based on ABAQUS

作　　者：朱凯杰 张文福 黄斌[2] 过轶青 ZHU Kaijie;ZHANG Wenfu;HUANG Bin;GUO Yiqing(Suzhou University of Science and Technology,Suzhou 215000,China;Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215009 [2]南京工程学院建筑工程学院,江苏南京211167

出　　处：《洛阳理工学院学报（自然科学版）》2021年第1期10-14,共5页Journal of Luoyang Institute of Science and Technology：Natural Science Edition

基　　金：国家自然科学基金项目(51578120).

摘　　要：建立了基于哑铃形CFST约束扭转模型,采用ABAQUS有限元软件分析了构件的约束扭转的力学性能。研究表明:与ANSYS结果相比,ABAQUS结果更加接近试验结果。基于板梁理论计算了哑铃形CFST扭转刚度并与有限元进行了对比,各构件误差在5%以下,初步证明了板梁理论的正确性。为后续哑铃形截面约束扭转的研究提供参考。In this paper,finite element software ABAQUS was utilized to simulate the member of dumbbell shaped CFST under non-uniform torsion,and torsional bearing capacity of dumbbell shaped CFST analyzed.The ABAQUS analysis results were consistent with the test results.The results show that the analysis of ABAQUS was more close to experiment than ANSYS.Based upon plate-beam theory,torsion stiffness of dumbbell shaped CFST has been obtained and the results were compared with FEM.The error between FEM and theory was less than 5%.It shows the correctness of the theoretical calculation method,which can be used as a reference for the later research of dumbbell shaped CFST under non-uniform torsion.

关 键 词：哑铃形 约束扭转 有限元法 板梁理论 

分 类 号：TU398[建筑科学—结构工程]