双索面斜拉桥转体设计关键技术研究  

Study on Key Technologies of Rotation Construction of Cable-stayed Bridge with Double Cable Plane

作　　者：邢铁雷 Xing Tielei(China Railway Fifth Survey and Design Institute Group Co. Ltd., Beijing 102600, China)

机构地区：[1]中铁第五勘察设计院集团有限公司

出　　处：《铁道建筑技术》2019年第7期52-56,共5页Railway Construction Technology

基　　金：中国铁建股份有限公司科技研究开发计划课题(10-57C)

摘　　要：山东邹鲁大桥是世界上首座转体重量超过2万t的斜拉桥。该桥上跨京沪铁路及铁路站场,跨径为(110+110)m,采用独塔平行双索面、墩塔梁固结体系的结构形式。该桥设计创新点主要有:基于市政桥梁的美观因素,采用了平行双索面的斜拉桥转体桥梁设计方案;结合斜拉桥运营阶段养护维修的需要,主梁采用开形箱梁设计;结合转体桥梁的施工特点,采用了圆形承台基础和圆形地下连续墙基坑支护相结合的创新设计。本文的研究成果对采用转体施工法的斜拉桥设计具有重要的理论指导意义和工程实用价值。Zou-Lu Bridge in Shandong Province of China is the first cable-stayed bridge in the world whose weight of swivel is over 20000 tons. The bridge with a span of (110 + 110)m is crossing the Beijing-Shanghai Railway and railway yard. The bridge has a single pylon and double parallel cable plane, its girder is firmly connected with the pylon and the main pier. The mainly innovation points of the bridge are as follows: double parallel cable planes are used in the bridge considering the landscape requirement of municipal bridge, 7T-shaped girder is adopted in order to meet the requirement of maintenance, both round pile cap and circular diaphragm wall as foundation pit support are used based on the construction characteristics of swing bridges. The research results of the paper have certain theoretical guidance meaning and practical reference value for the cable-stayed bridge with swing method.

关 键 词：双索面斜拉桥 桥梁转体 桥塔布置 主梁构造 基础形式 方案对比 基坑支护 

分 类 号：U442.5[建筑科学—桥梁与隧道工程] U448.27[交通运输工程—道路与铁道工程]