Study On Pile Pipe-soil-structure Model Based On Shaking Table Text

Foundation-soil-upper structure interaction is a hot issue in the recent earthquakeengineering. Throughout the development process, the vast majority of studies used innumerical analysis simulation, and then summarize some law. However, due to thesmall number of simulation test, many conclusions can not be confirmed. Thus, thispaper designed and implemented a shaking table model test interaction system, andstudied the dynamic interaction under seismic action. This interaction system takes pipepile as a basis which is more popular in the engineering, and change superstructure tomake it broader.Firstly, this study designed and produced a better model to simulate the boundaryconditions of the soil box, and designed three different upper structure programsaccording to the similarity relation. By the results of analysis of the test phenomenon,acceleration and displacement dynamic response, and the upper structure of the dynamiccharacteristics and soil with shear wave velocity, this paper obtained the interaction of thestructural system in the pile-soil-structure system, in different types, different excitationintensities and different excitation frequency seismic wave excitation.The results show that under seismic action, Pile-soil-structure interactions affectthe dynamic characteristics of the upper structure and dynamic response. In turn, theupper structure also affects the performance of the lower base. Any parts of the structurecannot affect the structural performance alone. In Seismic studies, the natural frequencyof the superstructure neither be considered isolate, nor the natural frequency of site, butshould take into account their common role. That is a complete seismic responseanalysis of the pile-soil-superstructure.