ABSTRACT
With a view to improving the problem of stress concentration and out-of-plane buckling at the end of the rectangular energy dissipation plate of traditional metal shear damper, the end shape of the energy dissipation plate was optimized by using chamfers with different radii, and an optimized metal buckling restrained shear panel damper was proposed. The stiffness calculation formula is given, the numerical model of this type of damper is established by finite element software, and the quasi-static test is carried out. The test results are used to verify the accuracy of the numerical model and the stiffness calculation formula. Accordingly, the verified numerical model was used for parametric analysis, the optimization effects of five different radius chamfers on the end of the energy dissipation plate were compared, and the mechanical properties of five kinds of span-to-height ratio dampers were studied. Using the simulation results, the calculation formula of the bearing capacity of this type of damper is revised, and the simplified constitutive model calculation formula of this type of damper is regressed, which lays a foundation for the engineering application of this type of damper.
