摘要
福厦客运专线乌龙江特大桥跨越乌龙江,为新建福州至厦门客运专线铁路重点控制工程,主桥桥址建设条件复杂,孔跨布置边界条件较多。为选取合理的主桥桥式方案,遵循"安全、实用、经济、美观"的设计原则,对高低塔混合梁斜拉桥、钢桁梁悬索桥两种桥式方案进行对比分析,综合考虑施工难度、景观效果、工程造价等因素,选定(72+109+432+56+56)m高低塔混合梁斜拉桥为推荐方案。该桥建成后,将成为世界上首座大跨度四线铁路高低塔混合梁斜拉桥。
Wulongjiang extra-long railway bridge on Fuzhou-Xiamen PDL traversing Wulongjiang river is the key project of the whole line,and the construction conditions and boundaries for span arrangement on the bridge site are complex. In order to determine the most suitable bridge type,comparison and analysis are conducted of the two schemes of bridge type,including the cable-stayed bridge and the steel truss girder suspension bridge following design requirements for safety,functionality,cost-effectiveness and aesthetics. It is concluded that the hybrid girder cable-stayed bridge with two unequal-height pylons（ spans of（ 72＋109＋432＋56＋56） m） is the most appropriate one to be recommended. The bridge will be the first long-span hybrid girder cable-stayed bridge with two unequal-height pylons for four railway lines in the world after completion.
作者
任征
REN Zheng(China Railway SIYUAN Survey and Design Group Co.,Ltd.,Wuhan 430063,Chin)
出处
《铁道标准设计》
北大核心
2018年第7期81-86,共6页
Railway Standard Design
基金
中国铁路总公司科技研究开发计划项目(2016G002-1)
中铁第四勘察设计院集团有限公司科研课题(2017K005)
关键词
铁路桥
高低塔斜拉桥
混合梁
钢桁梁悬索桥
方案研究
Railway bridge
Cable-stayed bridge with two unequal-height pylons
Hybrid girder
Steel truss girder suspension bridge
Scheme research
