Mechanical Performance Analysis Of Assembled Steel Structure Wall Under New Type Connections

In recent years,in the construction industry of our country,the development of the industrialization of steel structure houses further practice the green development concept advocated by the state.At present,our government put forward vigorously the development of assembled steel structure residential industrialization and assembling building incentives,social enterprise is also actively promoting the national policy,and put them into the construction of assembly structure,research universities with research into related topics the.The assembly architecture has been developed from the present to the present,especially in some developed countries.The existing research results show that: the external wall and the steel frame structure with the corresponding hypothesis of the connections are connected,connections in the structure under the action of stress has great bearing capacity,good ductility,high damping,connector can make the wall to deformation of main body structure in the earthquake,do not destroy their own.This paper presents a kind of connection form of assembled steel structure and steel frame wall plug ALC new,in order to study the new connecting structure of ALC steel plate and the plug under the framework of the lateral force resisting performance and seismic performance,using ANSYS finite element software,respectively.The whole model for the frame and the wall board and the corresponding compared with the pure frame model by finite element and unidirectional low cycle reciprocating displacement load analysis.The results of the analysis show that:(1)the steel frame plug ALC panel connections,which can ensure that under the action of external force between the external wall panels and steel frame can still be connected effectively,but also in the lateral deformation of large structure,connections in the wall under elastic state driven plate wall.(2)when the displacement load is added to 6.35 mm,the initial stiffness of the pure frame model M1,the connection frame and the wallboard model M2 is improved,about 20%,until the overall stiffness of the loading is improved by about 9%.The ultimate bearing capacity of M2(290.74)is increased by 9% compared with the M1 ultimate bearing capacity(266.785).It can be seen that the use of the connector to connect external ALC wallboard has relatively small effect on the ultimate bearing capacity and lateral stiffness of the frame structure.The effect of connecting ALC wall plates on the stiffness and ultimate bearing capacity of the structure can be ignored to design.(3)during the low cyclic loading,data analysis shows that the total energy dissipated by the ALC wall panel is slightly increased compared with the pure steel frame model.Both static loading or pseudo static loading connectors are not yielding,and the stress of the wall plate at the joint is still within the allowable stress range.