Analysis For The Wind-induced Internal Force Response Of High-Rise Building Considering Soil-Structure Interaction

For the problem of the high-rise building wind resistance,the forced vibration of the upper structure will lead to deformation of the foundation soil.In addition to being part of the territories itself damping dissipation energy,most of the energy produced by vibration deformation of the foundation soil affects the dynamic response of the upper structure.And foundation soil was softer,the phenomenon was more obvious.To introduce the concept of soil-structure interaction for studying the wind-induced vibration of structure after considering the foundation soil deformation problem is reasonable and feasible.So high-rise building wind vibration response not only must carry on the static analysis of soil also need to consider the various influences the dynamic response of structures.But at home and abroad about the soil-structure interaction of the high-rise building wind resistance performance research is relatively small and still in its infancy.There is no definite conclusion to soil-structure interaction on the wind response of high-rise building is good.Its relevant reearch is given priority to with dynamic response,and researchers did not focus on the soil-structure interaction on the impact of the internal forces of the wind vibration of high-rise building problem.Analysis of the structure internal force response can better understand the structural internal force under the soil-structure interaction,the change rule of it is more important for the wind-resistant design of high-rise and practical.This topic mainly studies on wind-induced internal force response of high-rise building considering soil-structure interaction(SSI).This paper will use finite unit method to study the soil-structure interaction on the internal forces of the high-rise building wind vibration response,and its research content includes:(1)The along-wind dynamic load of the upper structure :To shape the rules of high-rise frame structure,our research with the wind to the wind load response of high-rise frame structure.In this paper,after studying the natural dynamic characteristics of the high-rise building,using the linear filtering method to simulate the fluctuating wind load,and synthesis of the along-wind dynamic load.(2)Finite element analysis model is established using the finite element method:With the center difference method for the principle of the finite element method,using ABAQUS finite element software to simulate a basic outline of box foundation ofhigh-rise frame structure.(3)Analysis of the internal force response of high-rise building under wind load:Using the ABAQUS dynamic implicit calculation method to calculate the model.On whether considering soil-structure interaction of the internal force response of high-rise buildings were analyzed,considering the influence of different structural height and different soil conditions to the high-rise buildings.This article research results can be used as wind resistance design of high-rise building more realistic conditions to provide important theoretical basis and practical significance...