摘要
合拢段施工是预应力连续梁桥施工和体系转换的重要环节,直接影响合拢时桥梁结构安全、成桥后桥梁的安全性和耐久性。因此对合拢段施工方案选定、模板安装、劲性骨架安装、顶推力施加、合拢段配重、施工控制等几方面的技术研究是非常必要和有意义的。本文主要讨论合拢段的施工工艺及在设计中应该注意的一些问题。
Closing segment is an important part of pre- stressed continuous bridge and structure, system conversion, derictly effect on the safety of closing bridge structure, the bridge safety and durability. Therefore, it is very important to study on the technology of selecting closing segment program, installing the template and stiff skeleton ,imposing jacking force and closing segment counterweight,construction control. This paper summarizes the closing segment of bridge construction technology, and point out that some issues should be attentioned in the design.
出处
《河南城建学院学报》
CAS
2010年第1期25-30,共6页
Journal of Henan University of Urban Construction
关键词
合拢段施工
连续梁桥
体系转换
桥梁结构
closing segment
continuous bridge
system conversion
bridge structure
