| It's well known that RC coupled shear walls structure has superior earthquake resistant behavior, which comes from not only its strong wall legs but also its coupling beams.Coupling beams between openings are the main plastic energy dissipation elements of coupled walls .The deep coupling beam are usually adopted in the coupled walls or core-walls to assure the lateral stiffness of structures.But whether the deep coupling beam could ensure that shear failure wouldn,t take place before coupling beam have reached certain displacement ductility, is still a problem of engineering which hasn,t been solved and is one of key problem of the code for design of concrete structures which remains to be solved.Aiming at the problem in engineering design, the test for three deep coupling beams with new reinforcement scheme has been carried out . From the test the paper investigates the failure mechanism,failure mode,deformation ability and energy dissipation..For the new reinforcement arrangement scheme is superior in seismic performance and is easy for construction from the text results, the new reinforcement arrangement scheme of the short coupling beam is an effective way to solve its seismic performance problem.Finite element analysis of RC structure could give the whole process of internal forces and deformation of structure.By virtue of ANSYS, the paper analyzes the whole process of the deep coupling beam.All datas indicate the simulation results of the deep coupling beam were tallies with the experimental results.From the finite element analyzes of the deep coupling beam, the parameter influencing the behavior of coupling beam are confirmed and analyzed. On the basic of analyze, the paper reveals the influence of concrete grades, the ratio of boundary longitudinal reinforcement to boundary element,the volumetric ratio of transverse reinforcement at the boundary element on the load capacity and displacement of the span-to-depth ratio of coupling beam.
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