双钢板混凝土组合剪力墙研究现状与展望OA

To promote the development and application of double steel plate concrete composite shear walls,a systematic review of existing research at home and abroad is conducted from five aspects:connection configurations,failure modes,critical conditions for elastic buckling of outer steel plates,bearing capacity calculation methods,and the application of composite walls in prefabricated structural systems.Double steel plate concrete composite shear walls can be categorized into four types based on connection configurations:partitioned multi-cavity type,tie-connector type,stud(or T-stiffener)type,and hybrid connection type.Their failure modes primarily vary with the shear span ratio,including compression-bending failure(bending failure),bending-shear failure(shear-compression failure),and shear failure.Through the study of the elastic buckling behavior of outer steel plates,reasonable limits for the spacing-to-thickness ratio of commonly used composite wall panels in engineering have been summarized.Based on existing bearing capacity calculation methods,a formula for calculating the compression-bending bearing capacity of multi-cavity composite shear walls,which accounts for the constraining effect of the outer steel plates on the infill concrete,has been proposed.Finally,the typical applications of composite shear walls in prefabricated structural systems are introduced,analyzing their advantages in improving the overall structural mechanical performance,enabling factory-based production and rapid assembly of components,reducing construction periods and lowering comprehensive costs.