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In order to study the soil-foundation-structure interaction of concrete filled steel tube(CFST) arch bridges, the theory of substructure is introduced and the substructure-finite element method is adopted. Taking the Nanning Yonghe Bridge for example, three models are developed, which the soil-foundation interaction is introduced in model 1, the interaction is analyzed using Finite Element Method...
The seismic capability of concrete filled steel tube (CFST) arch bridge is determined by the arch ribs. In this paper, the seismic capacity of arch ribs is evaluated by using the method based on the strength and ductility. First, the internal forces are calculated respectively by using finite element method under gravity action and small earthquake. Then, the ultimate bearing capacities, the ratio...
Base on the model of dam-foundation dynamic interaction, this paper studied the effect of reservoir on the seismic behavior of concrete arch dam. Three dynamic interaction models were built with the software of ANSYS by means of finite element method. There are interaction models of dam-foundation interaction, dam-foundation-water interaction (Westergaard method) and dam-foundation-water interaction...
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