The Transverse Antisesmic Analysis Of The Transportation Hub Project Of Tianjin Station

With the development of the national ecomomy, large amounts of various tunnels and underground structures are increasingly beening built. Their sacle are extending continuously. Underground structure have been utilizing widely in energy sources, traffic, city construction defending engineering, etc. So their importance is more visible. Especially urban underground structures have important effects on urban development and national stability when once earthquake occur. Therefore, anti-seismic of underground structures is important both in theoretical research and engimeering. Whereas, for the structure both has underground struchture and aboveground structure, the effect of it is more complex. therefor, the research of influent problem of underground struchture and aboveground structure has important theoretical meaning and project application value.The dynamic anti-seismic analysis of Tianjin Station Transportation Hub Project in cross section is analyzed and caculated using ANSYS program. This paper will research the following problems.(1) This paper sets up the integral finite-element interaction model based on the trim size of No.30 axis,the middle of the structure. And analyzes the mode of the finite-element model, caculates the vibration characteristics of the finite- element model.(2) Under three seismics excitation, the structure bearing and anti-deformed capacity should be calculated and evaluated under the normal earthquake.(3) Under three seismics excitation, the structure anti-deformed capacity should be calculated and evaluated under the major earthquake, the result is the deformation met the code for seismic design of buildings.(4) By comparing the hime-histroy displacement curve of No.39 axis and No.30 axis, it can be shown that when the floor structure's number of span change, how the whole structure's seismic displacement response will change.