The Simulation And Computational Analysis On Branch Piles-Soil-Structures Dynamic Interaction System

Since the last century 70's, in the earthquake project domain, the structure -ground power mutually have affected the question the research to enter a brand-new stage. Regardless of in the fundamental research, the computation model analysis as well as each kind of experimental study has all obtained the encouraging result, but as a result of each kind of condition restriction, experimental study carries on relatively less, but analyzes the comparison research about the computation which and experiments then are less. Conduct the comparison research the computation analysis and the experimental study, on the one hand may confirm the computation model the rationality, on the other hand also can the verification test plan feasibility, as well as the test result reliability, has the count for much significance.This article has mainly done the following several aspects research work: Introduced the plate pile - ground - structure power mutually affects the system Shaking table model experiment the main situation, including the test equipment, the experimental model, the model material performance parameter, the experiment treasure, the experimental increase system, the testing and so on, mutually affects the system Shaking table model experiment for as follows in view of the structure -ground to carry on the computation model ling and the computation analysis provides the essential parameter, and provides the confirmation basis for the computation model and the computational method rationality.Mutually affects Shaking table the model experiment take the plate pile -ground - structure power as the foundation, union general finite element software MARC, mutually affected the system to the structure -ground power to carry on the finite element computation model ling some questions to do the research, mainly included the earth vessel the simulation, the soil body this construction model selects, the non-linear simulation, the grid division, the symmetrical use and soon.According to this article model principle and the computational method, mutually affected the system to the structure - ground power to carry on the three dimensional finite element computation analysis, indicated through the computed result analysis: Uses the computation model and the computational method is reasonable. Analyzes the angle from the computation which and experiments unifies to consider the structure - ground power mutually affects when the system earthquake responded the related rule, mainly from the system acceleration responded, the pile body strain and the pile earth contact pressure as well as mutually affected to basis seismic motion aspect and so on influence has carried on the analysis, carried on the induction basically to the regular result, the discovery computation has been consistent with the experimental rule. In other material parameter same situations, the use same radical plate pile and the straight pole pile carry on the contrast experiment which the structure - ground power mutually affects. Studies them under the same earthquake wave drive, the superstructure biggest displacement, during biggest level change situation and so on shearing force and overturning moment.The structure - ground power mutually affects the influence which responded to the system earthquake is very remarkable, in thorough research foundation, it is necessary makes the improvement to the rigid ground hypothesis and the present structure earthquake resistance design method. This article tried to find out as soon as has applied mechanically general finite element procedure MARC to carry on the structure - ground power mutually to affect the research the computation analysis method, was advantageous to strengthens mutually affects the question research the universality, the promotion mutually affects the research to be more rapid thoroughly develops, causes it finally to enter from the scientific research domain to the project practice domain in.