For the current research on precast reinforced concrete composite panels has been limited to unidirectional panels,and the research on the bi-directional panels'flexural performance is still unclear.A new type of bidirectional rib-bed composite wall panel was proposed.In order to study the flexural performance of this type of wall panels,ABAQUS software was used to establish its numerical analysis model,and the validity of the selection of finite element analysis mod-el parameters was verified through comparative analysis.On this basis,the force deformation and crack development of four-side simply-supported bi-directional ribbed composite wall panels themselves were analyzed under the simplified uni-form load.At the same time,the influence of the variation of rib height,rib shape and other parameters on the flexural performance of such wall panels was investigated.The results show that,the crack development mode of four-side simply supported two-way ribbed composite wall panels subjected to simplified uniform load is similar to that of ordinary rein-forced concrete two-way panels.The flexural capacity of two-way ribbed composite wall panels is reduced compared with that of traditional composite wall panels,but the decrease in flexural capacity is obviously lower than the decrease in mass,and the wall panels have a better effect of weight reduction.
composite wall panelribbed wall paneltwo-way panelflexural performancefinite element analysis
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