| 主缆在锚碇处锚固预应力系统防松装置研究 |
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| 引用本文： | 贺恩明,徐风云,周之清,李疑. 主缆在锚碇处锚固预应力系统防松装置研究[J]. 重庆建筑, 2015, 0(3): 36-38. DOI: 10.3969/j.issn.1671-9107.2015.03.036 |
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| 作者姓名： | 贺恩明 徐风云 周之清 李疑 |
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| 作者单位： | 1. 重庆城建控股 集团 有限责任公司,重庆 400013; 重庆交通大学,重庆 400074;2. 重庆交通大学,重庆,400074;3. 重庆建工集团股份有限公司,重庆,401122;4. 重庆市江北区建设工程质量监督站,重庆,400020 |
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| 摘 要： | 随着大跨径桥梁的发展,悬索桥在大江大河上广泛建造,其主缆的锚固体系也各有千秋,但耐久性方面仍在不断研究。该文将依托重庆三环高速公路涪陵青草背长江大桥,介绍不可更换的锚碇预应力锚固体系为增加锚固安全系数而增设防松装置的背景、装置研究以及如何施作。该项目成功实施,值得在类似桥梁设计、施工中借鉴与推广。
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| 关 键 词： | 涪陵青草背长江大桥 主缆锚固 预应力系统 防松装置 夹片锚 |
Study on Locking Device of Anchoring Prestress System of Main Cable at Anchorage |
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| Abstract: | With the development of long-span bridge, suspension bridges have been widely established over large rivers, with various anchoring sys-tems, but the endurance is being still studied. Based on the Qingcaobei Yangtze River along the third ring expressway in Chongqing, the installation background, installation research and installation measures of locking device for enhancing anchoring safety factor of anchoring prestress system are in-troduced. The project is successfully done, offering some references for similar bridge design and construction. |
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| Keywords: | Qingcaobei Yangtze River in Fuling main cable anchorage prestress system locking device clamp anchor |
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