大西客运专线顶推连续钢箱梁研究设计  

Design of Continuous Steel Box Girder Erected by Pushing on Datong-Xi'an PDL

作　　者：白全安[1] 

机构地区：[1]中铁第一勘察设计院集团有限公司桥隧处,西安710043

出　　处：《铁道标准设计》2011年第B12期67-71,共5页Railway Standard Design

摘　　要：大西客运专线联络左线(64+68+64)m连续钢箱梁从梁高及室宽上来讲均超越了既有组合结构的钢箱梁,处于国内领先位置,施工顶推跨度也居大跨度之列,结合本桥的结构设计计算方法及构造研究,简要介绍钢箱梁尺寸设计中的主要影响因素,得出此类桥梁的尺寸优化及计算原则,直接应用到工程实践中,为今后同类桥梁设计提供理论依据。The height and width of the continuous steel box girder on the left tie-line of Datong-Xi＇an PDL are larger than those of the existing composite structure of steel box girders in China and the span of pushing-erection also ranks the top.Based on the structural design and the calculation methods of the bridge,the paper introduces the main factors affecting the size of the bridge,concludes optimization and calculation principles which will be applied directly to engineering practice and provide a theoretical basis for the design of similar bridges in the future.

关 键 词：大西客运专线 连续钢箱梁 结构设计计算 构造研究 顶推施工 

分 类 号：U442.53[建筑科学—桥梁与隧道工程]