Structural design of Haikou International Duty Free City project
This project is located in a high intensity fortification area with significant seismic effects,and there are multiple irregular plane shapes in the aboveground buildings of the project.After full comparative analysis,a concrete-filled steel tube frame and shear type metal damper structure is adopted above ground,which reduces horizontal seismic effects by increasing structural damping and significantly improves the seismic performance of the structural system.The roof adopts a large-span single-layer reticulated shell structure system for the main area,and a double-layer reticulated shell structure system is used for locally cantilever areas.The overall stability is calculated and analyzed by the dual nonlinear calculation method.This article mainly introduces the structural system and characteristics of this project,clarifies the design standards,parameter selection,calculation methods and key technical measures,aiming to provide useful reference for the structural design of similar projects.
metal dampersperformance-based designsingle-layer reticulated shells
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