Analysis On Seismic Performance Of Steer-Reinforced Concrete Coupling Beams

Coupling beam is a kind of important energy dissipating component, as it is thefirst line of energy dissipation under earthquake in coupled walls. When coupling beamshave little depth-to-span ratio, routine coupling beams have less energy dissipation, andthere are no design methods for coupling beams when the depth-to-span ratio is lessthan2.5. Although many scholars studied in the way of experimentation, the theory stillisn’t perfect. In this study, ABAQUS6.10software of the finite element is used toinvestigate seismic response of the different coupling beams under different factors. Inthis study include the following factors, with different depth-to-span ratio; differentspan-depth ratio; with different shapes; Conclusion through calculation analysis wasobtained, include the following: When the depth-to-span ratio is small, the couplingbeam with the bar profiled pass to install the diagonal, at connect45degree of thecoupling beam should from effectively organization of transfer force stress inconcentrate area. It make that the loading ability of longitudinal reinforcing. Steel barcan be get valid exertive and pass, lately install reinforcing bar can effectively restrictthe crack of concrete opening. The concrete side long press make the side long sheardestroy delayed. Coupling beams exerts much better energy dissipation. In the end，using capacity spectrum method to evalue the seismic behavior of a shell wall tubestructure with coupling beams of SRC under8degree earthquake.