The Structural Design of Changde High-Speed Railway Station
Changde high-speed railway station is an important station on the Chang-Yi-Chang Main Track.The station building can be divided into the lower concrete structure and the upper steel roof.The roof is mainly supported with Γ-shaped frames,which effectively increases the lateral stiffness of the structure,and also imply the image of peach blossoms in full bloom.The structural scheme design has experienced three rounds of evolution,they are three-dimensional triangular truss scheme,box girder combining truss scheme,box girder scheme.For the rise of the lower arc chord of the connecting truss in the skylight area,Grasshopper+SAP2000 linkage program was used for automatic parameter optimization,for obtaining the balance point of optimal structural mechanical performance and architectural space effect.The comparative analysis of the ABAQUS model and SAP2000 model shows that the SAP2000 section designer is accurate to analyze the special-shaped section member with various sections.The Γ-shaped frame,with powerful relaxing shape and reasonable structural performance,can realize the perfect combination of architecture and structure.
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