空间受限下高铁站房设计实践——以京张高铁清河站为例

Design of High Speed Railway Station with limited Space——Take Qinghe Station of Beijing-Zhangjiakou High Speed Railway as an Example

目前,大型高铁站房逐渐发展成为集铁路、城市轨道交通、长途车站等多种交通方式为一体的综合交通枢纽。车站功能的复合化也要求空间布局由原来的平面化模式向立体化模式转变。而立体化模式使得建筑层高往往受铁路轨道层高程及地铁轨道层高程的双重影响,导致出现建筑层高及空间受限的问题。以京张高铁清河站设计为例,提出一种建桥合一结构体系,结合承轨层采用U形梁并兼做地下一层屋面层的设计思路,相比传统框架混凝土结构体系,该做法柱间距增加了2.78倍,高度增加了1.18倍,并充分利用冠状盖梁间的空间作为设备管线夹层,管线空间增加1.98倍,满足了站房层高受限时建筑的功能需求,解决了下部换乘空间局促压抑的问题。

At present,the large high-speed railway station has gradually developed into a large-scale comprehensive transportation hub,integrating railway,urban rail transit,long-distance station and other transportation modes.The combination of functions also requires the transformation of spatial layout from the original plane mode to the three-dimensional mode.The three-dimensional model often makes the building storey height affected by both the railway track layer elevation and the subway track layer elevation,which leads to the limitation of building storey height and space repression.Therefore,taking the design of Qinghe Station of Beijing-Zhangjiakou High-speed Railway as an example,this paper puts forward a combined structure system of bridge with building,in which,the rail bearing layer adopts U-beam and serves as the first underground floor layer.Compared with the traditional frame concrete structure system,this method makes the distance between the columns increased by 2.78 times and the height increased by 1.18 times,and it makes full use of the space between the crown capping beams as the inter-layer of the equipment pipeline to increase the pipeline space by 1.98 times,which meets the functional requirements of the station building with limited storey height and solves the problem of limited transfer space in the lower part.