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Simulation Method of Soil Boundary Condition in Shaking Table Tests of Soil-Structure Interaction

CHEN Yueqing LU Xilin HUANG Wei (Tongji University, Shanghai 200092)  
Through comparing several boundary simulation methods used in past tests, this paper draws a conclusion that the effect of the flexible boundary box is satisfactory. According to the practical conditions of the test, a flexible boundary model box is designed. the results of three free field shaking table tests show that the response of the point away from the boundary for some distance matches that of the center point of the soil surface. This testifies that the influence of the boundary on the soil inside is small and the test box satisfactorily decreases the boundary effect on sesmic response of the soil. As a result, the simulation design of the soil boundary is successful, which provides good conditions for shaking table tests of Soil Structure Interaction system.
【Fund】: 国家自然科学基金重点项目资助
【CateGory Index】: TU47
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