Experimental Study And Numerical Analysis Of Semi-rigid Connection Frame With Vertical And Horizontal Stiffened Steel Plate Shear Walls

Horizontal load plays the primary role on multi-story building structures. To meetthe requirement of displacement limit value, lateral resisting members should be usedto improve the lateral resistant capacity of the structures. As an excellent kind of newlateral resistant members, steel plate shear wall (SPSW) was firstly applied to thenewly constructed and seismic strengthening structures in the USA and Japan in the1970s. SPSW with good lateral force resisting rigidity and energy dissipation capacityis cost-effective, and the construction of which is simple. The semi-rigid connectionframe with steel plate shear wall is the combination of steel plate shear wall andsemi-rigid frame, which takes advantages of the both. With reasonable arrangement ofthe wall and proper design of the column-beam connection, the stiffness of thesemi-rigid frame and the steel plate shear wall can match well. So it is applicable to theseismic design of high-rise building structures in high-intensity areas.At present, domestic and foreign research on steel plate shear wall mainly focuseson the buckling restraint and the use of post-buckling strength. Experimental study andnumerical analysis were used in this paper to study the semi-rigid frame with verticaland horizontal stiffened plate shear wall. Main research contents are as follows:An Experiment was carried out under low cyclic loading on a two-story andone-bay semi-rigid connection frame with steel plate shear wall, the scale of which was1:3. The destruction process and the final failure mode were observed during theexperiment. According to analysis of the test data, the overall performance such as the ductility, energy dissipation capacity, rigidity and bearing capacity degeneration aswell as the local performance of some members were studied. The results showed thatthe structure, with good ductility performance and high energy dissipation capacity,would not undergo sudden destruction. Vertical and lateral stiffeners performed well inrestraining the buckling of the steel plate shear walls. The lateral support of thespecimen provided limited support. The final destruction of the specimen was due tothe overlarge out-of-plane deformation.Based on the actual size, constraints of the specimen, the structure was studiedwith the finite element analysis software ANSYS. The nonlinear finite element analysisresults were compared with the test results, which indicated that the finite elementanalysis software ANSYS could be used to study the performance of the structureeffectively. After that, special attention was paid on the variable parameter analysis ofthe panel slenderness ratio, stiffness of the column, axial compression ratio of thecolumn and the stiffness ratio of the stiffeners. The conclusions could be useful forfurther correlation studies.