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高速铁路客运站房大型幕墙是一种桥建合一的结构体系,由于玻璃幕墙体系与列车轨道梁紧密相联,高速列车通过时可能引起玻璃幕墙共振的问题。因此,在设计幕墙结构体系时,行车振动对玻璃幕墙结构体系的影响必须予以考虑。以某高速铁路站房玻璃幕墙结构为研究对象,运用有限元方法进行数值动力仿真分析,分析结果表明:行车振动荷载不会使幕墙结构产生共振;双边列车通行相比单边列车通行,幕墙结构产生的平面外振动位移要大;当行车振动荷载激振方式为竖向力激振时,竖向激振荷载作用下幕墙结构的平面外振动位移很小。
The large-scale curtain wall of high-speed railway passenger station building is a kind of structural system of bridge construction. Due to the close relationship between glass curtain wall system and train track beam, the problem of resonance of glass curtain wall may arise when passing by high-speed train. Therefore, when designing curtain wall structure system, the influence of driving vibration on the structure system of glass curtain wall must be considered. Taking the glass curtain wall structure of a high-speed railway station as the research object, the numerical simulation is carried out by using the finite element method. The analysis results show that the vibration of the curtain wall structure will not cause resonance; The out-of-plane vibration displacement generated is larger; when the driving vibration load excitation mode is vertical force excitation, the out-of-plane vibration displacement of curtain wall structure under vertical excitation load is small.