某地铁高架车站双预应力框架结构的设计与施工  

The Design and Construction of the Double Prestressed Frame Structure of One Metro Line Station

作　　者：周牧[1] 

机构地区：[1]北京市市政工程设计研究总院,100082

出　　处：《特种结构》2010年第2期32-36,共5页Special Structures

摘　　要：本文结合目前地铁高架车站结构设计现状和设计标准,对北京地铁某高架车站的框架结构进行设计研究。为了解决重荷载、长悬挑钢筋混凝土框架的结构设计问题,将预应力钢撑杆应用于预应力钢筋混凝土长悬挑梁中形成双预应力悬挑梁,以达到提高结构承载力、减少截面高度、控制变形、提高结构延性及满足100年使用年限的目的。同时,通过对双预应力框架进行现场施工监测,将监测成果与理论计算进行对比,验证了结构分析的正确性,为今后同类型高架车站的结构设计提供了有益的尝试。In combination with up-to-date application and design standards of most new-built high railway sta- tion, the design of frame structure of one station of Metro line in Beijing is studied in this paper. In the design, some prestressed steel staies are applied to the long prestressed reinforced concrete cantilevered beam to form the double prestressed cantilevered beam and to solve the problem of structure design of long cantilevered reinforced concrete frame un- der the action of heavy loads. The design purpose of increasing the loading capacity, reducing section height , limiting deformation, improving the ductility of the structure have been got, so that its 100 years service life requirement is also meeted. At the meantime, the data from spot monitoring showed great agreement with that of theoretical calculation. Thus the correctness of the design was verified. It is a beneficial try for the future structure design of similar high railway station.

关 键 词：高架车站 长悬挑梁 钢撑杆 双预应力 

分 类 号：TU378.4[建筑科学—结构工程]