北京地区无柱大跨岛式车站结构体系研究

Study on the Structural System of Large-span Island Station without Columns in Beijing Area

本文在案例调研的基础上,筛选出可用于北京地区无柱车站的变截面板、井字梁、混凝土刚接桁架、预应力、劲性混凝土、拱形板等6种体系。针对6种体系无柱车站进行内力分析,结合各体系典型特点给出合理指标参数,并从受力和经济对比角度对各体系进行排序。此外针对中板方案进行了专门研究,为相关工程提供一定技术支持。

On the basis of case studies,this article presented six structural systems that can be used for subway stations without columns in Beijing,including variable cross-section panels,well shaped beams,concrete rigid truss,prestressed,reinforced concrete and arch plates.Stress analysis for the six types of stations was conducted,and some reasonable parameters based on the typical characteristics of each system were provided.The six system were sorted according to their stress and economic comparison.In addition,specialized research on the medium board has been conducted to provide certain technical support for related projects.