The design research on raising the bearing capacity of long-span stone Two-way Curved Arch Bridges

Journal of Chongqing Jiaotong University(Natural Science) ›› 2006, Vol. 25 ›› Issue (5): 1-4.

The design research on raising the bearing capacity of long-span stone Two-way Curved Arch Bridges

MU Chang-chun¹，ZHANG Hui-li²，MENG Yun²

1.The Highway Investment and Construction CO, Ltd of Chongqing, Chongqing 401147, China; 2.Chongqing Jiaotong University, Chong qing 400074, China

Received:2005-09-30 Revised:2005-10-28 Online:2006-10-15 Published:2015-05-18

提高百米大跨石砌双曲拱桥承载力的设计研究

慕长春¹，张会礼²，蒙云²

1.重庆市高等级公路投资建设有限公司，401147; 2.重庆交通大学，重庆 400074

作者简介:慕长春（1966—），男，重庆市巴南区人，高工，主要从事公路桥梁维修加固的研究和管理工作.

Abstract

Abstract: The Youdu River bridge, which was built in 1972 with the longest span, is a two-way curved arch bridge. During its construction it became dangero us because the arch frame was washed away due to the flood, and the arch to psagged 51.7cm.In 1985 it was reinfo rced with Bolt Anchored Concrete, and then it can bear the car-15, gua-80 load. But after 20 years, it must bear the qi-20, gua-100 load due to the traffic development. In this paper the reinforced method is introduced. This can be referenced by the following project.

Key words: stone arch bridge, streng hening design, bearing capacity, especially long span

摘要： 游渡河大桥建于1972年,主跨为100m,是我国跨度最大的石砌双曲拱桥.建设过程中因山洪爆发冲走拱架,拱顶下挠51.7cm,成为危桥.1985年曾采用锚喷砼加固,承载力达到汽-15、挂-80,时经20年为适应交通发展需要,须将其承载力提高为汽-20、挂-100,本文拟对其加固设计及施工进行介绍,以供参考.

关键词: 特大跨径, 石拱桥, 承载力, 加固设计

CLC Number:

MU Chang-chun，ZHANG Hui-li，MENG Yun. The design research on raising the bearing capacity of long-span stone Two-way Curved Arch Bridges[J]. Journal of Chongqing Jiaotong University(Natural Science), 2006, 25(5): 1-4.

慕长春，张会礼，蒙云. 提高百米大跨石砌双曲拱桥承载力的设计研究[J]. 重庆交通大学学报（自然科学版）, 2006, 25(5): 1-4.

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