双空间钢构架混凝土柱偏压性能有限元分析  

Finite Element Analysis of Mechanical Properties of Double Spatial Steel Frame Concrete Short Columns under Eccentric Pressure

作　　者：李泽宇 唐兴荣[1] LI Ze-yu;TANG Xing-rong(School of Civil Engineering,Suzhou University of Science and Technology,Suzhou Jiangsu 215011,China)

机构地区：[1]苏州科技大学土木工程学院,江苏苏州215011

出　　处：《淮阴工学院学报》2021年第1期71-77,共7页Journal of Huaiyin Institute of Technology

基　　金：建设部科技研究项目(99-031-2)。

摘　　要：双空间钢构架混凝土柱是由内外空间钢构架组成,即在空间钢构架混凝土短柱中内埋空间钢构架,形成一种对混凝土有着两重约束的组合柱。为了更加深入探究组合柱的偏心受压力学性能,结合试验研究,利用非线性有限元进行模拟分析。分析表明,在其他条件相同情况下,无论大偏心还是小偏心,随着内、外空间钢构架混凝土约束影响系数的增大,双空间钢构架混凝土柱的偏心受压承载力有不同程度地提高,且外侧空间钢构架混凝土约束系数对其偏心受压承载力的影响更加明显。In the short column of space steel frame concrete,the space steel frame is embedded to form double space steel frame concrete column.The inner and outer space steel frame of this new type of composite column has double restraint effect on concrete,and has higher bearing capacity and better deformation performance.In order to further explore the eccentric compression behavior of double space steel frame concrete composite columns,the finite element software ABAQUS is used for nonlinear simulation analysis.The analysis shows that,under the same conditions,with the increase of the influence coefficient of internal and external space steel frame concrete constraints,the eccentric compression bearing capacity of double space steel frame concrete columns increases to some extent,and the influence of external space steel frame concrete constraints on its eccentric compression bearing capacity is more obvious.

关 键 词：空间钢构架 组合柱 偏心受压 力学性能 有限元分析 

分 类 号：TU398.9[建筑科学—结构工程]