我国转体斜拉桥发展综述

Review of China's Rotation Cable-Stayed Bridge Development

桥梁在跨越交通繁忙的既有线路时,采用转体法施工具有显著的优越性。斜拉桥由于结构上的优点及其美观的造型,在城市中常作为跨既有线路桥梁的首选桥型。为了解我国转体斜拉桥的发展状态与趋势,对我国已建、在建的转体斜拉桥进行调研,阐述了我国转体斜拉桥的发展历程。在此基础上,对转体斜拉桥主梁、主塔结构形式及特点、斜拉索构造与布置形式、转体方式进行对比分析,归纳出我国转体斜拉桥的发展特点。同时对转体施工中的转动钢球铰、转动系统以及转体稳定性控制等关键技术进行总结,为今后我国转体斜拉桥的设计与施工提供参考。

When the bridge needs to cross the busy route, the rotation construction has significant superiority. In the city, the cable-stayed bridge is often regarded as the preferred bridge type for crossing the existing road, due to its structural advantages and beautiful styling. In order to study the development state and trend of China's rotational cable-stayed bridge, this paper introduced the development process of China's rotational cable-stayed bridge by investigating the built and under-construction cable-stayed bridge. On the basis of this, compared and analyzed the main beam, the main tower structure and characteristics, the cable structure and layout and the swivel way. Summarized the development characteristics of the rotational cable-stayed bridge. Finally, the key technologies such as rotating steel ball hinge, rotating system and swivel stability control in the rotation construction was analyzed and summarized, which can provide reference for the design and construction of the rotational cablestayed bridge.