Experimental Research On Lattice Steel Plate Shear Walls Seismic Strengthening Of Brick Masonry

With the increasingly urgent task of building seismic strengthening,Inparticular,seismic reinforcement work of the school buildings,choose a safe, reliable,cost-effective and rational optimization seismic reinforcement reinforcement taskefficiently complete a significant role.Thus,a new type of masonry reinforcement methodsresearch-latticed steel plate shear wall reinforcement method,Currently there are fewstudies on the steel wall reinforced masonry structure of this thesis on this reinforcementtechnique to do some preliminary research focused on the strength grade of brick or mortarstrength grade can not meet existing norms,ultra-high overrun of both masonry structuresfor seismic performance test.Aspect ratio of0.7and1.75of the brick wall specimen seismic performance study,Spandrel and vertical and horizontal wall were simulated,9wall specimen,includingreinforced wall,the double-sided reinforced concrete wall, steel wall.Introduced the designof the steel wall reinforcement and model reinforcement load test,and test processes andphenomena described,and low cyclic levels of9wall, and wall damage morphology andstrain analysis.By cracking load and crack displacement,ultimate load and ultimatedisplacement ductility factor,load-displacement hysteresis curve,the skeleton curve,thestiffness degradation curve,the energy dissipation coefficient on the wall of the seismicperformance analysis.Through the analysis of test data,the comparative study of the seismic performance ofsteel wall and double-sided reinforced concrete wall,that wall of steel plate isfeasible,especially double-sided steel wall reinforcing effect is moreeffective.The seismicperformance indicators shows that the double-sided steel plate wall reinforcementperformance is equal to the double-sided reinforced concrete wall, the steel plate wallreinforcement method applies not only to the walls of local wall(the wall between the windows),but also to the structural integrity (the whole piece of the wall),bring someguidance significance to the reinforcement design of practical engineering.