Accuracy of three-dimensional seismic ground response analysis in time domain using nonlinear numerical simulations

被引：23

作者：

Liang, Fayun ^{[1
]}

Chen, Haibing ^{[1
]}

Huang, Maosong ^{[1
]}

机构：

[1] Tongji Univ, State Key Lab Disaster Reduct Civil Engn, Int Joint Res Lab Earthquake Engn, Shanghai 200092, Peoples R China

来源：

EARTHQUAKE ENGINEERING AND ENGINEERING VIBRATION | 2017年 / 16卷 / 03期

基金：

中国国家自然科学基金;

关键词：

three dimensional soil column; seismic ground response; centrifugal model test; nonlinear analysis; accuracy verification; SATURATED POROUS-MEDIA; DYNAMIC-ANALYSIS; CYCLIC MOBILITY; SOIL; FORMULATION; ELEMENT; SITE;

D O I：

10.1007/s11803-017-0401-1

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

To provide appropriate uses of nonlinear ground response analysis for engineering practice, a three-dimensional soil column with a distributed mass system and a time domain numerical analysis were implemented on the OpenSees simulation platform. The standard mesh of a three-dimensional soil column was suggested to be satisfied with the specified maximum frequency. The layered soil column was divided into multiple sub-soils with a different viscous damping matrix according to the shear velocities as the soil properties were significantly different. It was necessary to use a combination of other one-dimensional or three-dimensional nonlinear seismic ground analysis programs to confirm the applicability of nonlinear seismic ground motion response analysis procedures in soft soil or for strong earthquakes. The accuracy of the three-dimensional soil column finite element method was verified by dynamic centrifuge model testing under different peak accelerations of the earthquake. As a result, nonlinear seismic ground motion response analysis procedures were improved in this study. The accuracy and efficiency of the three-dimensional seismic ground response analysis can be adapted to the requirements of engineering practice.

引用

页码：487 / 498

页数：12