A new type of specially shaped column frame structure with prefabricated chevron bracing composite wallboard was proposed.In order to study its seismic performance,a 1/2 scale shaped column frame structure was tested under low-cycle cyclic loading test,and its failure pattern,hysteresis curve,bearing capacity,energy dissipation capacity,displacement ductility,stiffness degradation and other indexes were analyzed.ABAQUS finite element simulation results was compared with the test results after the simulation by ABAQUS finite element software.The results show that the specially shaped column frame structure with prefabricated chevron bracing composite wallboard is damaged in the following sequence:foamed concrete,chevron brace,composite frame beam,and composite specially shaped frame column.The composite wallboard mainly experiences shear failure;under the action of horizontal reciprocating displacement load,chevron brace and the specially shaped column frame structure can form a dual seismic resistance system to improve the seismic capacity of the structure.The finite element simulation results are in good agreement with the experimental results,and the finite element simulation method is suitable for the specially shaped column frame structure with prefabricated chevron bracing composite wallboard.
维普
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