Structural design on main building of National Financial Information Center
The main building of National Financial Information Center is a super high-rise structure consisting of two connected double main buildings.It has many plane and vertical irregular exceeding limits,such as height overrun,multi-towers,towers linked with connective structure,stiffness mutation,bearing capacity mutation and so on.The logical relationship between structural system,connecting truss selection and architectural characteristics was introduced.The finite element method was used to analyze the bearing capacity and stiffness of the supporting structural components of the cable curtain wall.The analysis results show that the scheme of using a 3-story connected truss and a central connecting body to bear the load of the cable curtain wall is feasible.By using the space of equipment pipeline in the roof,space triangular trusses are set up to solve the load-bearing problems of roof connectors.Combining the roof space triangular truss with the cantilever truss,a reinforcement layer is set on the roof to solve the problem of insufficient lateral stiffness of the overall structure.By comparing the calculation results of the overall model,high zone split tower model,and fully split tower model,the influence of connector failure on the seismic performance of the structure was studied,providing a basis for the envelope design of structural bearing capacity.
connective trussspace triangular trusscable curtain wallstorey with outriggerseparate tower calculation model
NETL
NSTL
万方数据
