厦漳跨海大桥南、北汊桥总体设计与研究  

Overall Design and Study of South and North Bridges of Xiazhang Sea-Crossing Bridge

作　　者：王福敏[1] 罗强[1] 李军[1] 

机构地区：[1]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《桥梁建设》2013年第4期20-25,共6页Bridge Construction

摘　　要：厦漳跨海大桥主要由北汊桥、海门岛立交及收费服务区、南汊桥、海平立交四大部分组成,全长9.333km。为适应复杂的自然与建设条件,对该桥桥位方案进行比选,并对项目中关键控制性工程(北汊主桥、南汊主桥)的桥型方案进行研究。经研究,最终确定北汊主桥采用主跨780m的五跨连续钢箱梁斜拉桥方案,南汊主桥采用主跨300m的结合梁斜拉桥方案。针对项目中复杂的地质条件、高地震烈度和恶劣的风环境,分别采取设置适应性强的桩基础,对较差的桩基地质注浆;按抗震要求进行构造设计,在主桥塔梁处设置纵向阻尼器,引桥设置减隔震支座;北汊主桥采用一种翼型扶手栏杆、南汊主桥采用分流板抗风等措施进行处理。The Xiazhang Sea-Crossing Bridge, totally 9. 333 km long, is composed of four major parts of the north bridge, Haimen Island interchange and toll service area, south bridge and Haiping interchange. To accommodate the complicated natural and construction conditions of the bridge, the bridge site schemes were compared and the bridge type schemes for the critical control projects （the north and south main bridges） were studied. According to the study, it was finally determined that the 5-span continuous steel box girder cable-stayed bridge with a main span 780 m would be adopted for the north main bridge and the composite girder cable-stayed bridge with a main span 300 m would be adopted for the south main bridge. In consideration of the complicated geologic conditions, high intensity earthquake and harsh wind environment, the well adaptive pile foundations were respectively utilized. For the pile foundations at the locations with poor geology, the foundations would be grouted. The structures of the bridge were designed in compliance with the seismic resistance requirements. At the connections between the pylons and girders of the main bridges, the longitudinal dampers were arranged and on the piers of the approach bridges, the earthquake isolation bearings were arranged. For the north main bridge, a kind of the wing type balustrade was utilized while for the south main bridge, the wind resistant measure of the guide vanes was taken.

关 键 词：厦漳跨海大桥 斜拉桥 钢梁 箱形梁 结合梁 桥位 桥型 方案比选 结构设计 工程技术 

分 类 号：U442.5[建筑科学—桥梁与隧道工程]