竖向均布荷载作用下四肢钢管混凝土格构柱力学性能分析  

Mechanical Property Analysis on Four-tube CFST Laced Columns Under Uniformly Distributed Axial Compression

作　　者：章彦[1] 刘忠[1] 王群雄 

机构地区：[1]湘潭大学土木工程与力学学院,湘潭411105

出　　处：《湖南工程学院学报（自然科学版）》2015年第3期79-82,共4页Journal of Hunan Institute of Engineering(Natural Science Edition)

摘　　要：针对竖向均布荷载作用下四肢钢管混凝土格构柱的力学性能,进行了非线性数值模拟,利用该模型,分析了四肢钢管混凝土格构柱的破坏形态及核心混凝土强度等级、钢材等级、钢管壁厚、长径比等因素对构件受力性能的影响,分析结果与试验数据吻合较好,为工程设计提供参考依据.The nonlinear numerical simulation analysis is conducted to investigate the mechanical behaviors of four-tube CFST laced columns under uniformly distributed axial compression. The failure mode of fourtube CFST laced columns is analyzed by using the model. Furthermore, mechanical behavior is studied according to different parameters such as core-concrete strength grade, the steel grade, wall thickness of steel tube,and length to diameter ratio. The calculated results are in line with the experimental ones. And the results provide some useful references for engineering design.

关 键 词：钢管混凝土格构柱 竖向均布荷载 有限元法 非线性分析 

分 类 号：TU392.3[建筑科学—结构工程]