A series of shaking table model tests were performed to examine the effects deep cement mixing (DCM) columns with different reinforcement depths on seismic behavior a pile group in liquefiable sand. Due DCM column reinforcement, fundamental natural frequency ground increases noticeably. The excess pore pressure soils reduces increase columns. Before liquefaction, acceleration response improved ...

A scheme integrated with deterministic–stochastic subspace system identification and the method of damage localization vector is proposed in this study for damage detection of structures based on seismic response data. A series of shaking table tests using a five-storey steel frame has been conducted in National Center for Research on Earthquake Engineering (NCREE), Taiwan. Damage condition is ...

Shaking table tests using vibration model are conducted to verify the characteristics of high-damping structural system with multi-story shear walls and dampers. The can reduce response under earthquakes significantly compared conventional control which dampers work in inter-story drift. Analysis simulating is also it reveals that key index representing reduction effect damper deformation ampli...

Centrifuge shaking table tests were conducted to evaluate damage level of embankments before sliding failure. In the test series, high-resolution digital images model obtained and strain distributions inside calculated using a PIV technique. Results showed that in embankment failure can be evaluated from material near its toe stress-strain relationship material. Finally, we propose performance ...

Abstract: In recent years deadly earthquakes in seismic areas have caused special concerns regarding liquefaction phenomenon by researchers and specialists. Excess pore water pressure in loose sediments may cause phenomena such as boiling, shearing strength and dynamic stiffness reduction and lateral movements cause difficulties. Many remedial methods such as soil replacement with proper materi...