郑州市北三环彩虹桥改建方案研究

摘要:

郑州市北三环彩虹桥上跨郑州北编组站,随着北三环快速化和交通流量不断增加,桥梁结构出现病害,文中结合现状桥梁结构病害研究了加固方案,又结合现状北三环存在的交通问题和桥梁结构的设计使用年限研究了拆除后新建方案,详细比较了加固方案和拆除新建方案的工期、经济性、技术标准和使用寿命等。

Abstract:

The rainbow bridge on the North Third Ring Road of Zhengzhou crosses the North Marshalling Station of Zhengzhou. With the rapid development of the North Third Ring Road and continuous increase of traffic flow, the bridge structure appearred diseases. In this paper, the reinforcement scheme is studied in combination with the existing bridge structure diseases, and the new scheme after demolition is studied in combination with the existing traffic problems of the North Third Ring Road and the design service life of the bridge structure, The construction period, economy, technical standards and service life of the reinforcement scheme and the demolition and construction scheme are compared in detail.