To study the dynamic response and spectrum characteristics of three-dimensional crossing tunnel under action seismic load, we established a 1/50 downscale model based on typical oblique overlapped conducted series shaking table tests. Through examining recorded responses (acceleration strain measured at different locations in tunnels), found that crown was largest central section, invert tunnel...

In general, the stone pagoda structures with discontinuous surfaces are vulnerable to lateral forces and severely damaged by earthquakes. After Gyeongju earthquake in 2016 Pohang 2017, numerous were due slippage, rotation, separation of stacked stone. To evaluate seismic resistance masonry structures, we analyzed behavior using shaking table test. Shaking frequency, permanent displacement, maxi...

This paper proposes a design method of tracking control for electric shaking tables via the stochastic optimal control theory with preview action based on a third-order model with respect to the jerk, acceleration, velocity and displacement of the table. The reaction force caused by the dynamic motion of a test structure subjected to seismic disturbances can be regarded as a random disturbance ...

Modeling the soil–structure interaction (SSI) in seismic design involves use of soil response curves for single-degree-of-freedom (SDOF) structures; however, real structures have multiple degrees freedom (MDOF). In this study, shaking-table-derived p-y SDOF and MDOF superstructures were compared using numerical analysis. It was found that an structure experienced less displacement than same wei...

Based on a series of shaking table model tests, it was found that the eŠects of 1) subsoil and backˆll deformation, 2) failure plane formation in backˆll, and 3) pullout resistance mobilized by the reinforcements on the seismic behaviors of the geosynthetic reinforced soil retaining walls (GRS walls) were signiˆcant. These eŠects cannot be taken into account in the conventional pseudo-static ba...