Structural Design and Seismic Analysis of Complex Steel-Concrete Composite Underground High-Speed Railway Station
The irregular steel-concrete composite frame system has good applicability for the offline high-speed railway station building.Based on the structural design of Licheng Station of Jinan-Laiwu high-speed railway,this paper studies the key technology of structural design of station building under line and irregular steel-concrete composite.The research results show that:the design method of coordination between civil building code and railway code can better meet the requirements of offline station building;the lateral combination in the irregular steel-concrete composite structure can effectively reduce the whipping effect in the upper and lower composite structure;the influence of temperature stress can be effectively solved by adopting the treatment measure of"anti-release combination"for the steel arch composite truss of the super-long foyer;the transition joint of steel-concrete cone platform can ensure the feasibility and reliability of the conversion between concrete and steel structure.Through the dynamic elastic-plastic analysis of the structure,it is verified that the composite structure meets the established performance objectives and is safe and reliable.
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