The Artificial Calculation And Seismic Response Analysis Of Asymmetric Continuous Rigid-frame Bridge

??Beam-T continuous rigid-frame bridge has the advantage of convenient in construction and lower cost, adapting to the character of viaduct in mountain area. It's widely used in expressway in mountain area. However, sometime because of the Geography, the bridge structures are designed to asymmetry side, the characters of the sequence of construction and the distribution of interior force are different from the common symmetry rigid-frame structures. Connecting the practical condition, it is a problem that the application function will be satisfied, the construction is convenient and it will be more techniquecal and economical in the asymmetry side bridge. This paper on the background of the Buermen Bridge in west Hunan, overall and deeply computes the construction course and the seismic resisting of the asymmetry side rigid-frame bridge, the main contents are following:1) Use the finite special software Branalysis, take the space girder finite element to establish a reasonable finite element static calculation modal. Based the forward analysis, mimesis and calculate the course of the construction, emphasize mimesis imbalance matching weight course. And put forward the reasonable construction procedure project. Ground on construction control, calculate the deflection and stress data to guidance the construction and insure the implement of the bridge supervise.2) Use the finite software Ansys, take the space girder finite element to establish asymmetry side continuous rigid-frame bridge modal, the poil-soil interaction model, put these models toâ… kind andâ…¡kind yard soil, do the responses spectrum along the arrange side and across side of the bridge. Compare the different model results to get internal force rule of symmetry rigid-frame bridge in the seism responses spectrum.3) Found on asymmetry side continuous rigid-frame bridge modal, calculate temporal responses in the EI Centro wave, Taft wave, San Fernando wave and Hollywood wave along the arrange side and across side of the bridge, analysis the infection of choice of the wave to the internal force in bridge temporal responses. There are lots of asymmetry side bridge instances, but correlative Literatures are lacked. By the detailed analysis of asymmetry side Beam-T continuous rigid-frame bridge, the result can be used for reference the similar project.