Beneath The Seismic Response Of Large-scale Research

With the increasing degree of urbanization, the expansion of city size, urban transport problems of urban development is increasingly becoming an obstacle constraints, so the development of underground space to solve the city's traffic problem is undoubtedly very important. For large and medium cities now appear beneath the growing number of large structures, many of which are located in the high intensity earthquake zone. As the complexity of seismic design for the structure beneath such seismic research is not mature, the method is not perfect. In this paper, Chengyi Road Kunming Chenggong New Town was under the mountain through the Central Park tunnel structure, the use of finite element software ABAQUS finite element analysis of earthquake dynamics, the main contents are as follows:1, the structure of the tunnel below the characteristics of damage and failure analysis, seismic design of the commonly used method of thinking and dynamic finite element theory are discussed.2, venue for the soil beneath the structure and the formation of soil-structure interaction system for the seismic response analysis, the data summarized in the diagram, free field, with cover soil, no case of overlying soil structure and variation of ground acceleration, and the structure of principal stress, shear stress and displacement were studied.3, by changing the depth of the earthquake beneath the structure was studied, analyzed and summarized the state of different depths beneath the structure of principal stress, shear stress, horizontal and vertical displacement of the variation.4, consider the horizontal, vertical, horizontal and vertical three earthquake input coupling effect on the structure beneath the seismic response analysis, obtained in the three states on stress, displacement, acceleration variation.5, for the soil-structure interaction, depth changes, changes in the direction of seismic wave through the next three seismic analysis, with the most adverse conditions, proposed ideas and methods of seismic design.