期刊论文

Key Transverse Moving Techniques for Simply-Supported Beams of a High-Speed Railway Bridge Crossing Existing Railways

中文

世界桥梁

1671-7767

2023

51

S1

85-90

10.20052/j.issn.1671-7767.2023.S1.013

本校为第一机构

新建福州至厦门铁路上行联络线湖边特大桥上跨既有福厦线湖地里大桥，设计为32 m简支混凝土箱梁。为确保该简支箱梁施工时既有营业线运营安全，简支箱梁施工采用墩旁线外支架现浇、横移就位施工技术。综合考虑天窗点作业时间限制、营业线高空施工安全，在常规的支架现浇、横移施工技术基础上，采用现浇支架与横移系统联合设计，增加了支架上箱梁横移的稳定性；设计了鱼腹式异形滑道梁，滑道梁分段设计、吊装，降低了营业线吊装难度，确保吊装安全；改进了滑轮导向限位装置，利用滑座两侧的钢轮引导及限位滑移，确保了横移就位的准确性。采用的施工技术降低了上跨施工安全隐患，节约了施工成本，...

The Hubian Bridge,which carries part of the upline of the Fuzhou-Xiamen Railway,crosses the Hulidi Bridge of the existing Fuzhou-Xiamen Railway.The bridge is a 32 m-span simply-supported concrete box beam bridge.To ensure the safe operation of the existing railway,the s...MORE The Hubian Bridge,which carries part of the upline of the Fuzhou-Xiamen Railway,crosses the Hulidi Bridge of the existing Fuzhou-Xiamen Railway.The bridge is a 32 m-span simply-supported concrete box beam bridge.To ensure the safe operation of the existing railway,the simply-supported concrete box beam were cast in situ ...