The Overall Stability And Seismic Performanceon On Swimming And Diving Hall Of Qingdao Sports Center

Space structure has a long history in China,but whose development is slow before the1980s. With the continuous development of China’s Economic Situation andcomprehensive national strength,span space structure are constantly emerging in China.Grid structure is widely used in the roof structure of many large space constructionalengineering at home and abroad for his advantages such as larger stiffness space,smaller building height, saving steel, space stress,easily industrialized, attractiveappearance. Facing the built and growing complex large span space structures, how toensure the good stability and shock resistance of structure are the important issues thatmany building designers are facing.By FEM software ANSYS,this paper analyzes thestability and earthquake’s multi-dimensional multi-point input of Qingdao Sports CenterSwimming and Diving Hall’s the roof structure.And the research work are as follows:(1) By analyzing characteristic value under a variety of load conditions,to learnthe stability of the structure in a variety of complex load.Use the methods of geometricnonlinearity and double nonlinear geometric material to analyze the structure.And focuson the effects of initial defect and wind load on the ultimate load. The results show thatthe eigenvalue analysis can not well understand the stability of the structure.Butconsidering the safety of the structure,we should also consider the effects of wind loadand initial geometric imperfections and analyze structures’nonlinear and stability,especially of the importance of material nonlinearity and geometric non-linear stabilityanalysis.(2) This article derive the four models by using multi-support excitation timehistory analysis method to analyze structural seismic and meanwhile analyze itscharacteristics.And also derive the implementation of seismic response of structure inANSYS under the multi-dimensional multi-point input time history analysis method(3) This paper use the ANSYS finite element software to consider the travelingwave effect of the span space structure.And use two different seismic waves ananlyzestructure’s multi-point multi-dimensional earthquake.And analyze multi-dimensionalmulti-point earthquake and multi-dimensional multi-rare earthquake. Study shows thatthe multi-point input can increase the structure’s the vertical displacement, which isextremely unfavorable for earthquake. So for the important cross-structuralengineering,and for security reasons, we should analyze the structure of the dimensional and multi seismic analysis.