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Full-Text Articles in Engineering
Seismic Response Of An Arch-Beam Interacting With Sequential Moving Train Loads, Jong-Dar Yau, Ladislav Frýba, Shota Urushadze
Seismic Response Of An Arch-Beam Interacting With Sequential Moving Train Loads, Jong-Dar Yau, Ladislav Frýba, Shota Urushadze
Journal of Marine Science and Technology
Considering the axial-flexural coupling nature of an arch bridge subjected to seismic wave, this paper is aimed at investigation of dynamic response for a train moving over a railway arch-bridge shaken by horizontal ground motions. For analytical formulation, the arch bridge is idealized as a flat-rise parabolic arch with constant sectional properties uniformly distributed along the horizontal span and the train moving over it as a sequence of identical sprung mass units with constant intervals. To perform dynamic analysis of vehicle-bridge system shaken by horizontal earthquakes, an incremental-iterative procedure is proposed in this study. From numerical results, the multiple support …
Simplified Procedure For Evaluating Soil Liquefaction Characteristics, Shuh-Gi Chern, Tain-Shyang Chang
Simplified Procedure For Evaluating Soil Liquefaction Characteristics, Shuh-Gi Chern, Tain-Shyang Chang
Journal of Marine Science and Technology
The purpose of this paper is to develop a mathematical model for the evaluation of liquefaction characters for soil subjected to earthquake induced cyclic loading. Cyclic triaxial test results are used to develop the basic model. It is then used to evaluate cyclic shear strength τR, number of cycles required to cause liquefaction Nι or failure condition Nf , and the generation of excess pore water pressure Ug. The development of this model is a great breakthrough for the evaluation of liquefaction characteristics for soils under earthquake loadings.