摘要
首先选取了方钢管混凝土柱与圆钢管混凝土柱试验数据各3组,基于有限元理论,应用ADINA软件对钢管混凝土柱进行数值模拟,并将模拟结果与试验值进行比较。结果表明,模拟的荷载位移曲线与试验滞回曲线的骨架曲线吻合较好。基于以上结果,利用ADINA软件模拟了钢材参数、混凝土物理参数、柱高、轴压比、长细比、钢管与混凝土截面积均相同的方、圆钢管混凝土柱,对比分析了两种形式截面的钢管混凝土柱的变形及受力情况,结果表明,相同条件下,圆钢管混凝土柱的变形性能优于方钢管混凝土柱;圆钢管混凝土柱表面受力较大,表面易出现应力集中情况。
Selected 3 groups experimental data of the square concrete filled steel tube columns and circular concrete filled steel tube columns based on the finite element theory,simulated the concrete filled steel tube( CFST) columns by using the ADINA software,and compared the simulation results to the experimental values. The results show that simulation load-displacement curve was in good agreement with the skeleton curve of experimental hysteresis curve. Used the ADINA software to simulate the steel parameters,concrete physics parameters,column height,axial pressure ratio slenderness ratio,same cross-sectional area of steel pipe and concrete and concrete filled circular steel tubular column. Comparative analysis of deformation and stress of CFST columns with two sections,the result show that the deformation performance of the CFST column is better than that of the square steel tube concrete column;the surface of the CFST column is subjected to large stress and the surface is prone to stress concentration.
作者
李丽
李吉
景鹏旭
刘凯
解全才
蒋玲丽
Li Li;Li Ji;Jing Pengxu;Liu Kai;Xie Quancai;Jiang Lingli(China Earthquake Networks Center,Beijing 100045,China;China 19th Metallurgical Corporation,Chengdu 610031,China;National Earthquake Response Support Service,Beijing 100049,China;Institute of Engineering Mechanics,China Earthquake Administration,Harbin 150080,China)
出处
《建筑结构》
CSCD
北大核心
2018年第S2期571-574,共4页
Building Structure
基金
国家地震科学数据共享平台项目(15503013201)
关键词
钢管混凝土
有限元
骨架曲线
ADINA
数值模拟
concrete filled steel tube(CFST)
finite element
skeleton curve
ADINA
numerical simulation
