南玉高铁六景郁江特大桥主桥方案研究 陈刚.pdf

文档介绍：铁道标准设计
Railway Standard Design
ISSN 1004-2954,CN 11-2987/U

究桥位和桥式方案；针对推荐方案，研究钢-混部分斜拉桥结构体系、桥梁约束体系、辅助墩的设置、边中跨跨度比、主梁
梁高、钢-混结合段设置位置、桥塔对主梁刚度的影响等设计关键问题；按确定的相关参数进行结构设计；开展列车、轨道
及桥梁动力仿真分析。研究表明：主桥采用(+109+320+109+) m钢-混部分斜拉桥结构；结构体系采用左塔设固定
支座的半漂浮体系；边跨设置1个辅助墩；；，; 上塔桥面以上有效塔高
按55m设计；该结构具有优良的动力性能。
关键词：高速铁路；铁路桥梁；钢-混部分斜拉；桥位；结构体系；约束体系；辅助墩
中图分类号: ; 文献标识码: A DOI: .1004-

Research the main bridge scheme of the Liujing Yujiang Special Bridge of the
Nanning-Yulin High Speed Railway
CHEN Gang
(China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, China)
Abstract: LiuJing Yujiang Special Bridge of Nanning-Yulin High Speed Railway should meet the navigational requirements, so
the span of bridge structure is need 320m, the main bridge design schem needs to be studied in the comparative
analysis method, the bridge position and bridge type scheme were s