摘要
将肢长比及约束效应系数作为轴心受压短柱力学性能的影响因素,利用Abaqus有限元软件计算T型组合钢管混凝土柱在单向荷载作用下的力学性能,得到其荷载-应变关系曲线与极限承载力。在验证有限元模型正确的基础上,进一步分析其破坏模式与应力分布规律。研究结果表明:随着约束效应系数增大,试件极限承载力提高;肢长比越小,极限承载力越高。
Taking the ratio of length to diameter and the constraint factor as the most important factors in the mechanical analysis of composite T-shaped concrete-filled steel tubular columns, the mechanical properties of the special-shaped column is calculated that under the uniaxial loads by the finite element software ABAQUS, and the load-displacement curve and the ultimate load-bearing of height are gotten. Based on the fi-nite element analysis proved, the failure mode and the stress distribution are further analysed. The results show that with the increasing of constraint factor, the higher ultimate loads will get; the smaller of the ratio of length to diameter, the higher ultimate loads will get.
出处
《中原工学院学报》
CAS
2017年第3期1-6,共6页
Journal of Zhongyuan University of Technology
基金
国家自然科学基金项目(51408621)
河南省科技攻关研究项目(152102310119)
河南省高等学校重点科研项目基础研究项目(15A560046)
关键词
钢管混凝土柱
T形截面
轴心受压
数值模拟
concrete-filled steel tubular column
T-shaped section
axial compression
numerical simula-tion
