摘要
针对某特定工程,依据不同的土层参数,通过设置边界弹簧和阻尼模拟地基土作用,构造三维黏弹性动力人工边界有限元模型,进行随机地震反应数值仿真;依据合成的基准地面SL-2、SL-1的基岩设计地震动时程,进行工程成层地基模型的自由场地震反应时程分析,建立了各楼层的考虑土-结构相互作用的地震反应及各层水平和竖向加速度反应谱的计算。
For a particular engineering project,a finite element model of 3D viscoelastic dynamic artificial boundary was constructed by setting the boundary spring and damping to simulate the foundation soil according to the parameters of different soil layers. The numerical simulation of random seismic response was carried out,which was based on the synthetic basic ground of SL-2 an-d SL-1. The seismic response time of the free-field seismic response of the engineering stratified foundation model was utilised,and the seismic response of each floor considering the soilstructure interaction and the calculation of the horizontal and vertical acceleration response spectrum of each layer were established.
出处
《工业建筑》
CSCD
北大核心
2017年第6期75-79,124,共6页
Industrial Construction
关键词
楼层反应谱
三维黏弹性动力人工边界
自由场
地震反应分析
有限元
floor response spectra
3D viscous-spring dynamic artificial boundary
free field
seismic response analysis
finite element
