铁道标准设计2017，Vol.61Issue(6)：93-97,5.DOI:10.13238/j.issn.1004-2954.2017.06.020
高速铁路大跨度空腹式连续刚构设计
The Design of High-speed Rail Large Span Open-spandrel Continuous Rigid Frame
曹增华1
作者信息
- 1. 中铁第一勘察设计院集团有限公司桥隧处,西安 710043
- 折叠
摘要
Abstract
The 2nd Mogu River Bridge on Yinchuan-Xi'an High Speed Railway is 114 m high. In order to meet the requirements of the bridge height and the terrain, the main bridge uses a (120+210+120) m prestressed concrete continuous rigid frame. The main beam is in arched V form and a combined box girder structure, and the structure has the longest span ever built in railway prestressed concrete bridges. The Midas software is used to calculate the structure, simulate cantilever construction with temporary locking and stents, so that the upper and lower strings can be simultaneously constructed. The calculation results show that the structure increases the spanning capacity, reduces the arch value of creep, meets the specification requirements and achieves good dynamic performances. The hollow pier and main beam consolidation result in good linear form and low project, which can provide a reference for the design and construction of large span and high pier bridges.关键词
墩梁固结/大跨连续刚构/空腹式桥梁/动静力分析/铁路桥梁/设计Key words
Pier-beam consolidation/Large span continuous rigid frame/Open-spandrel Bridge/Static and dynamic force analysis/Railway bridge/Design分类
交通工程引用本文复制引用
曹增华..高速铁路大跨度空腹式连续刚构设计[J].铁道标准设计,2017,61(6):93-97,5.
