The Performance Analysis Of Large-Span Giant Curved Structure With Cable Supported Sub-Structure

Based on the theory of giant grid structure and cable supported structure,Proposes a new spatial hybrid architecture with joint raction of rod, cable, beam-giant curved structure with cable supported sub-structure. This structure is composed of giant grid structure, cable supported sub-structure and prestressed cables, this paper calculated by ANSYS software for static and dynamic performance of the structure were analyzed in detail.By the structural prestressed value principles and optimizing analysis, establisht a 200m span calculation model of giant curved structure with cable sub-structure.By comparison with the same parameters common giant grid, the structural nodal displacements and rod stress have a smaller value, while a comparative analysis of the parameters for the structure shows that there are certain restrictions structural span, span ratio should not be too large, joist height has less impaction on the static performance, the greater structural prestressed,the smaller structural displacement and stress.The modal analysis shows that the natural vibration frequency of the structure is larger, indicating structural rigidity is greater, Researching the influence of various parameters on the natural frequencies of the structure. Research on seismic responsing of a giant curved structure with cable sub-structures by time history analysis method derived mainly vertical vibration of the structure, Also studied the influence of parameter changes on the seismic response of displacement and draw the variation of the structural part of the rod stresses and nodal displacement.The Comparative analysis of a power plant dry coal shed structure in Anyang and the giant grid structure shows that static and dynamic characteristics of the structure is better than dry coal shed structure, this structure also can save steel quantity. so this structure has good application value in this type of structure...