摘要
为研究不同轴压比对钢管混凝土柱侧向冲击性能的影响,该文对已有的冲击试验进行了验证。在验证模型基础上建立了不同轴压比的钢管混凝土柱在侧向冲击作用下的动力有限元模型,计算得到连续变化轴压比下钢管混凝土的抗冲击性能参数。结果表明:轴压比对钢管混凝土的侧向抗冲击性能有显著影响。在轴压比小于0.7时,轴力对钢管混凝土构件侧向抗冲击能力有提高作用,当轴压比大于0.7时,轴力对钢管混凝土侧向抗冲击能力有削弱作用。
To study the influence of different axial compression ratios on the lateral impact performance of concrete-filled steel tube columns,the existing impact tests were verified in this paper.Based on the verification model,the dynamic finite element models of concrete-filled steel tubular columns with different axial compression ratios under lateral impact were established.The impact resistance parameters of the concrete-filled steel tubular columns with different axial compression ratios were calculated.The results show that the axial compression ratio has a significant effect on the lateral impact resistance of concrete-filled steel tubes.When the axial compression ratio is less than 0.7,the axial force increases the lateral impact resistance of concrete-filled steel tubular members;when the axial compression ratio is greater than 0.7,the axial force decreases the lateral impact resistance of concrete-filled steel tubular members.
作者
康昌敏
王蕊
朱翔
KANG Chang-min;WANG Rui;ZHU Xiang(College of architecture and civil engineering,Taiyuan University of Technology,Taiyuan 030024,China;Department of Civil Engineering,Shanxi University,Taiyuan 030013,China)
出处
《工程力学》
EI
CSCD
北大核心
2020年第S01期254-260,共7页
Engineering Mechanics
基金
山西省应用基础研究项目-优秀青年基金项目(201701D211006)
东南大学混凝土及预应力混凝土结构教育部重点实验室开放课题项目(CPCSME2016-11)。
关键词
钢管混凝土
轴压比
侧向冲击
数值模拟
动力响应
concrete filled steel tube
axial compression ratio
lateral impact
numerical simulation
dynamic response
