| Steel-concrete composite ribbed shell is a new kind of space composite structure.This structure has a good prospects for development because of its Strong stiffness,good seismic performance and full play to material properties.However,how to determine the correct calculation model? what are the characteristics of Combination of system's dynamic properties and seismic response? What is the law of the support of uneven settlement? this problem's Solution is a premise to this new structure's Promotion.This paper use the general-purpose finite element software ANSYS to analyse the Cylinder Steel-Concrete Composite Ribbed Shell.By analyzing the Hinge bearing model,fixed bearing model,elastic support model and integrated model,Come to the conclusion about static properties,dynamic properties,seismic response and support's uneven settlement of the characteristics and laws,there are the followings:(1) By analyzing the Changing of the Span,the lower part of bearing stiffness and vector-to-span ratio,and get the this structure's properties.At the same time,Make the recommendations about the reasonable calculation model.(2) Obtain the law of structure's frequency changing,by analyzing different the lower part of bearing stiffness,the different span,the different vector-to-span ratio,the changing shell's thickness,the different rib Section size,the different side beam and the different shell's length.At the same time,Linear regression the fundamental frequency of the structure of Simple formula for calculating.(3) By analyzing the vertical and horizontal earthquake to through time-history analysis,draw the law about structure in earthquake,in order to provide a reasonable basis for the calculation model.(4) By analyzing the structure's different maner of the settlement and different settlement amount,obtain the law of inner force,deformation and dynamic properties when structure has a uneven settlement.
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