Mechanical performance of new combined bending metallic damper
Since the U-shaped damper suffers low capacity in load carrying and poor performance in energy dissipation,in this article efforts are made to develop a new combined bending metallic damper,which consists of both U-shaped X-shaped me-tallic plates.Cyclic loading is applied to the new combined bending metallic damper based on the dependent reinforcement mod-el;the simulation is carried out by means of the ABAQUS software.The simulation results show that the new combined bending metallic damper's hysteresis performance and capacity in load carrying have improved.The capacity in load carrying has enhanced by 24％compared with that of the U-shaped metallic damper.According to the theoretical analysis on the yield stress of materials,when the X-shaped metallic plate's yield stress is greater than 307.38 MPa,the combined bending metallic damper achieves the effect of two-stage yield.In the simulation,when Q235B steel is selected for the U-shaped metallic plate and Q345B steel is select-ed for the X-shaped metallic plate,the combined bending metallic damper ensures a higher standard of two-stage yield effect.
NETL
NSTL
万方数据
