洛卢公路洛河大桥中跨合拢设计

金文成¹，陈智俊¹，周小勇¹

（华中科技大学土木工程与力学学院）

摘 要：合拢段施工是连续梁施工和体系转换的重要环节，如何在温度变化时,保证合拢段混凝土的质量,是合拢成功与否的关键。

结合洛卢公路洛河大桥中跨合拢段施工的实践, 提出了确定中跨合拢方案的基本原理、计算方法以及所应采取的施工措施,以供类

似桥梁施工时参考。

关键词:连续梁桥;中跨合拢;桥梁设计

Joining Design for the Middle Span of Luohe Bridge

JIN Wen-cheng¹, CHEN Zhi-jun¹_, ZHOU Xiao-yong¹

 Abstract: Closure segment erection is the key phase for the construction and structural system transformation of continuous beam.The

 quality guarantee of the concrete is crucial to the success of the joining under temperature changes.Referred to the closure construction

 of the Luohe Bridge, a calculation method and some construction measures that can be  a references for the similar bridges construction.

 Keywords: continuous beam bridge；joining of the middle span；bridge design