NUMERICAL SIMULATION OF SHAKING TABLE TESTS ON DYNAMIC RESPONSE OF DRY SAND
In this paper, experimental results obtained from dynamic tests with laminar shear box with dimensions of 1 by 1 by 1m3, on Babolsar dry sand models are compared with numerical simulation results. Response of two types of dense and loose level ground models excited with harmonic loadings was observed. Different physical parameters like displacement of layers, accelerations at internal points and surface settlements were measured during tests.For numerical analyses, first the analyses were done with one-dimensional softwares like EERA (Equivalentlinear Earthquake site Response Analysis) and NERA (Nonlinear Earthquake site Response Analysis). These codes are based on equivalent linear methodology. Then, more precise modeling of the laminar shear container and its inside sand is conducted using famous finite element software ABAQUS.Due to very small frictional coefficient between box layers, in numerical modeling of laminar shear box this effect was neglected and proper boundary conditions were used for model. Also, in order to obtain more real results in 2D level ground analysis and avoiding reflect of waves from side boundaries into the model, infinite elements and quiet boundaries were used. The numerical analyses were performed for model scale. In all cases the computational results were compared with real and measured values for different physical parameters.
Shaking Table Laminar Shear Box Numerical Simulation Dynamic Response Dry Sand
F.Jafarzadeh D.Faghihi M.Ehsani
Assistant Professor,Civil Eng Dept,Sharif University of Technology,Tehran,Iran,fardin@sharif.edu Graduate Student,Civil Eng Dept,Sharif University of Technology,Tehran,Iran,danialfaghihi@gmail.com Graduate Student,Civil Eng Dept,Sharif University of Technology,Tehran,Iran,mahdi.ehsani@yahoo.com
国际会议
14th World Conference on Earthquake Engineering(第十四届国际地震工程会议)
北京
英文
2008-10-12（万方平台首次上网日期，不代表论文的发表时间）