| 有粘结预应力体系在钢筋混凝土箱梁加固中的应用 |
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| 引用本文： | 邓秦峰.有粘结预应力体系在钢筋混凝土箱梁加固中的应用[J].国防交通工程与技术,2009,7(4):45-47,51. |
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| 作者姓名： | 邓秦峰 |
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| 作者单位： | 山西省交通科学研究院,山西,太原,030006 |
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| 摘 要： | 结合武宿立交枢纽J匝道桥箱梁病害情况，经方案比选决定采用有粘结预应力体系加固箱梁。进行了结构受力分析，介绍了粘贴钢齿板施工、梁底预应力施工及喷注高性能抗拉复合砂浆等关键施工技术。补强实践表明：有粘结预应力加固技术预应力筋张拉方便、锚固结构简单、结构耐久性高，具有良好的推广应用前景。
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| 关 键 词： | 有粘结预应力 箱梁 加固 |
The Application of Bonded pre-stressed Systems to Reinforced Concrete Box Beams |
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| Deng Qinfeng.The Application of Bonded pre-stressed Systems to Reinforced Concrete Box Beams[J].Traffic Engineering and Technology for National Defence,2009,7(4):45-47,51. |
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| Authors: | Deng Qinfeng |
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| Institution: | Shanxi Traffic Institution of Science and Technology;Taiyuan 030006;China |
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| Abstract: | With the damage of the box beams of Ring Road J of the Wu-Su Overpass Hinge taken into account,the bonded pre-stressed systems are chosen to strengthen the box beams,upon the basis of comparing various strengthening plans.An analysis of the structural forces is made in the paper,with the key construction techniques such as sticking steel-toothed slabs,the pre-stressing of the beam bottom,and the shotcreting of high-performance compound anti-tension mortar introduced.It is proved in the strengthening constru... |
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| Keywords: | bonded pre-stressed box beam reinforcement |
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