| Steel frame with Bi-steel-plate composite shear wall infilled concrete is a new-typedouble resistance to lateral force structure system. Concrete is filled between the doubleplate.The steel plate is connected with concrete to constitute shear wall by the verticalstiffener plate, which makes shear wall around connect with steel frame. The kind of newstructure system hold the high bearing capacity、strong anti lateral force、ductility and goodenergy dissipation、the convenient construction. But at present domestic and internationalresearch on the resistance of the structure is not very comprehensive, and not suitable fordesigners to use design formulas for the shear. Seismic performance of the structure isanalysed by using finite element analysis software ABAQUS. The main contents aresummarized as follows：（1）Select the appropriate constitutive model, element type, mesh partition rules, andSteel frame with Bi-steel-plate composite shear wall model was establised with finiteelement analysis software ABAQUS. In order to ensure the correctness of the model,usingthe finite element model simulated a experiment the others did and compared with theexperimental results.（2）To analyze its seismic performance, the Base specimens was established by thefinite element analysis software ABAQUS, and simulated to get hysteretic curves, skeletoncurves, stiffness degradation, bearing capacity degradation curve. Characteristics of thehysteretic curves (yield point, the peak point, limit point) was used to analyze the processof force structure.（3）Based on the Base specimen,apply horizontal cyclic load on the designed11specimens,and study on concrete thickNess filled steel plate, thickNess, concrete strength,shear span ratio and other parameters on the seismic performance of the structure. Theresults showed that with the increase of concrete slab thickNess, the bearing capacity ofstructures increases slowly; with the increase of the steel plate thickNess, the bearingcapacity of the structures was significantly increased, energy consumption; with theincrease of concrete strength, the bearing capacity of structures increases slowly; with thedecrease of shear span ratio, bearing capacity was higher, the performance of anti-seismicwas better.（4）Analyze internal force distribution proportion between composite shear wall and steel frame; and then put forward double plate shear bearing capacity formula. |
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