Finite Element Simulation And Parameter Analysis Of Open And Buckling Resistant Steel Plate Shear Wall

In recent years,our country steel production is increasing rapidly.According to the latest data from Ministry of information statistics of China iron and steel association in 2011,Chiness steel production reached 6.832 65 million tons.It will promote the rapid development of the steel building in our country.The steel building is a necessary product of social development and technological progress in the construction industry.Steel frame is the main part to resist the vertical force,its horizontal bearing capacity is weak.Therefore,steel plate shear wall can be set in steel frame.steel plate shear wall has good comprehensive benefits,it is a good part to resist the lateral force.It has many advantages,such as good elastic-plastic deformation ability,high ultimate bearing capacity,high lateral stiffness,ductility and energy dissipation.It has been popular with many scholars at home and abroad since it began to appear.It has been widely used in many structures of high-rise buildings.At present,The elastic-plastic buckling performance and hysteresis performance of the shear wall of anti-buckling steel plate under lateral load have been fully studied.Many scholars have proposed various improvement measures for the shortcomings of various steel plate shear walls.Based on the research and summary of the shear wall of opening steel plate at home and abroad,this paper improves the shear wall of open hole steel plate.ABAQUS finite element analysis software is used to simulate the energy dissipation and ultimate bearing capacity of the different stiffening forms of open-hole steel shear wall.Study its effects of the influence of steel plate shear wall whether or not open holes on its carrying capacity and energy dissipation performance.According to changing the stiffening rib thickness,stiffening rib width,the hole size of the wall,hole shape,hole number and hole length,study the influence of its function on the shear wall of open hole steel plate.The main research contents and conclusions are as follows:Finite Element Calculation Model for Creating Shear Wall Shear Walls.The correctness of the finite element model is verified by a test in reference.In the form of open hole on wall body steel shell buckling steel plate shear wall structure with hysteretic performance analysis.Analysis of six kinds of stiffener layout mode of steel plate shear wall under cycle load hysteretic performance and the effect of energy dissipation.It is concluded that the bearing capacity of the steel plate shear wall is optimal and the energy consumption is the best.With the increase of the thickness of the stiffener,the ultimate bearing capacity increases,the ductility coefficient is slightly lower,and there is no significant difference in energy efficiency and energy consumption.But the thick stiffening rib inhibits the effective utilization of the strength after the internal filling plate.With the increase of the stiffening rib width,the shear mechanism in the plane is enhanced,the ultimate bearing capacity is increased,and energy dissipation capacity is enhanced.It is shown that the narrow stiffening rib does not have an effective restraining effect,but increasing the width of the stiffening rib does not continuously enhance the energy dissipation.As the size of the hole increases,the size of the hole can not have a significant effect on the energy consumption of steel plate shear wall.But the size of the hole makes the wall energy dissipate.Through analyzing four different shape hole simulation,the ultimate bearing capacity of the four holes is not different.The fuller the hole,the greater the ductility coefficient.With the increase of the number of holes,the number of holes has no significant effect on the energy efficiency of the steel plate shear wall.In comparison,a certain range,the more numbers of holes,the more energy consumed.Especially in the vertical direction hole energy consumption is better.With hole length increases,the overall gap is not big.There is more energy consumption in the open hole wall board,but the proper way of opening the hole is not loss of energy dissipation performance.The larger the hole length,the better the energy dissipation of steel plate shear wall.