Finite Elements Analysis On Shock Resistance Of Residential Building System With Multi And Tall Steel Structure

Residential structure is directly related to the living needs of human being and the development of national economy. Adoption of steel structure is great signification to accelerate residential structure, meet the house quantity and quality needs of people which are increasing improved day by day, decrease the consume of soil resources, regeneration utilize of building material and sustainable development of construction industry. Social reform open and economic development ,especially large increase of steel production, improvement and application of new style building material and building technology,the engineering practice empirical accumulated recent years,all above established foundation for the application of the steel structure systems and created a favorable environment for developing the industry.The steel frame structural system supplies a larger interior space and all parts stiffness of the structure are more uniform. Although steel frame structure has bigger ductility and long natural vibration period, the non-structural element is easy to destroy because of the smaller lateral stiffness and the larger lateral displacement, so the steel frame structural system is built too high inadvisable.The disposal principle and the column grid size of the frame in the steel braced frame structural system are the same as that of the steel frame structural system basically. The steel braced frame structural system adopts that vertical support formed by axial-direction strength staff instead of frame structure formed by bending resistance staff. Therefore, It can obtain much larger resistance lateral force stiffness and much more small interlamination lateral displacement of the structure.The steel frame-concrete shear wall (kernel canister) structural system usually uses stair well (elevator space) or toilet to set up reinforced concrete shear wall, which forms the main resist-side force structure. The periphery frame adopts steel frame or steel tube concrete frame, which possesses bigger resist-side stiffness and level shear resistant bearing capacity, can advancestructural earthquake resistance and satisfy structural distortion require. Due to the mismatching of stiffness and the ductility of the periphery steel frame and the kernel canister, the steel frame-concrete kernel canister structure will lose the aseismatic ability basically when suffering the large earthquake, the steel frame does not react as the secondary defence once the kernel canister meets with destroy. In order to avoid above phenomena, this thesis advises that the simplex steel frame-kernel canister structure is not to be used and the steel frame-kernel canister-shear wall structure should be adopted to resist earthquake.Using ANSYS finite elements software calculates respectively the mode of vibration and frequency of the eleven-storey residential building of steel frame ,steel frame-support system ,steel frame-shear wall and steel frame -kernel canister. Inputting Tianjin seismic wave, the thesis analyzed the dynamic response of the eleven-storey residential building of the steel frame, steel frame-support system, steel frame-shear wall and steel frame -kernel canister, compare the relation of the coping displacement,coping displacement with storey high ratio,relative storm displacement with storey high ratio,resist-side stiffness with the space location of the appearance time in different system and the change rule of which in the same system.By a series of analyses, the thesis makes a useful researches and discusses on which kind of structural system can be adopted for high-rise steel structure. The results have some guidance sense and reference value to impel development and perfection of steel structure residential building.