Seismic Behavior Finite Element Numerical Simulation Of Cuntan Wharf Third Project

In view of new structure type, complex structure force, adverse working environment, coupled with economic and technical and other reasons, the force and other characteristics for the third phase project of Cuntan Wharf remains to further investigation .In order to ensure the safety and applicability of pier structures, it is necessary to analyze the seismic performance of the high-piled Wharf. In this paper, numerical simulation is used to analyz the mechanical properties of the third phase project of Cuntan Wharf under horizontal seismic loads by finite element software ANSYS, comprehensive understanding of seismic performance of the terminal structure and providing relevant information for the future design and verification. The main work and conclusions are as follows:First, establish finite element numerical simulation model for the third phase project of Cuntan Wharf, discuss the natural vibration character of the high-piled Wharf using modal analysis, and analysis selection of mass participation ratio.Second, in the situation of frequent earthquake, analysis the seismic performance of structure using mode-superposition response spectrum method and elastic time history method, get the overall deformation, distribution of axial force, bending moment distribution and distribution of shearing force of the structure and so on.Finally, establish three-dimensional finite element numerical simulation model for the third phase project of Cuntan Wharf considering pile-soil interaction. Using elastic time history analysis method, get the overall deformation, distribution of axial force, bending moment distribution and distribution of shearing force of Cuntan Wharf , internal force graph of each structure and so on.Conclusions are as following based on the above analysis:â‘ The greater natural vibration of structure, the smaller amplitude of vibration, and fundamental frequency is low, that illustrates pier is safer and stiffness distribution is uniform and reasonable.â‘¡The results of response spectrum analysis is slightly larger than the results of time history analysis, that shows the current design using the response spectrum method is much safer.â‘¢The results of seismic analysis considering pile-soil interaction is smaller and there is a certain law. This illustrates that is necessary to consider the pile-soil interaction when analyze the seismic performance of structure.