兆河大桥主梁钢混结合段设计

Steel-Concrete Joint Section Design of the Main Girder of Zhaohe Bridge

混合梁是主梁沿梁的长度方向由2种不同材料组成,主跨的梁体为钢梁,边跨(或伸入主跨一部分)的梁体为混凝土梁。钢-混结合段是混合梁的重要组成部分,其构造形式、设计所需要注意的关键点是混合梁设计的核心问题。论文通过工程实例,总结一些规律为今后同类桥梁的设计提供参考。

The hybrid beam is the main girder, which consists of two different materials along the length direction of the girder. The girder of the main span is a steel beam, and the beam on the side span （or part of the main span） is a concrete beam. The steel-concrete joint section is an important part of the mixed beam. The key point of its structure and design is the core problem of the design of the mixed beam. This article, through the engineering example, summarizes some rules to provide reference for the design of similar bridges in the future.