摘要
通过对一种自复位钢筋混凝土框架进行静力试验研究,得到自复位钢筋混凝土框架柱脚节点、梁柱节点的力学性能参数,进而提出自复位钢筋混凝土框架节点的弯矩-转角力学模型。依据自复位钢筋混凝土框架的节点静力试验结果,采用有限元方法对自复位钢筋混凝土框架的抗震性能进行非线性时程分析,并对比了数值模拟与振动台试验结果。比较结果表明,通过节点静力试验能精确得到自复位钢筋混凝土框架节点的力学性能参数的计算公式,以节点静力试验结果为依据进行的自复位钢筋混凝土框架数值模拟结果与振动台试验结果吻合良好。
Through a static test of the joints of a self-centering RC frame, the mechanical properties of column-base joints and beam-column joints are obtained and the joints＇ mechanical models of self-centering RC frames are proposed. Based on the static test results, non-linear time history analysis of the earthquake responses of the self-centering RC frame with FEM are carried out and the numerical simulation are compared with the shaking-table test results. The comparison shows that the numerical simulation results are in a good agreement with the shaking-table test, and the static test can obtain the mechanical properties of the joints accurately.
出处
《地震工程与工程振动》
CSCD
北大核心
2015年第5期120-124,共5页
Earthquake Engineering and Engineering Dynamics
基金
国家自然科学基金项目(51178354
51261120377)
关键词
自复位结构
静力试验
节点力学模型
非线性时程分析
地震响应
self-centering structure
static test
joint mechanical model
non-linear time history analysis
earth- quake response
