| 体外预应力加固T梁及相关优化研究 |
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| 引用本文： | 高荣雄,李敬,袁卫军,汤森霖.体外预应力加固T梁及相关优化研究[J].土木工程与管理学报,2014(1):7-12. |
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| 作者姓名： | 高荣雄 李敬 袁卫军 汤森霖 |
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| 作者单位： | [1]华中科技大学土木工程与力学学院,湖北武汉430074 [2]河南省交通运输厅公路管理局,河南郑州450000 |
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| 摘 要： | 在分析T梁体外预应力加固力学特性的基础上,探讨了体外预应力钢索自由长度控制,提出减震器布置的钢索建议长度。详细阐述了新型箱式锚板锚固系统和改进型转向器的构造设计。开展了简支T梁桥体外预应力加固设计工程实践,并进行加固前后的受力性能对比分析。
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| 关 键 词： | 体外预应力 简支T梁 自由长度 锚固系统 转向块 |
Study on External Pre-stressing Strengthened T-beam and Related Optimization |
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| GAO Rong-xiong,LI Jing,YUAN Wei-jun,TANG Sen-lin.Study on External Pre-stressing Strengthened T-beam and Related Optimization[J].Journal of Civil Engineering and Management,2014(1):7-12. |
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| Authors: | GAO Rong-xiong LI Jing YUAN Wei-jun TANG Sen-lin |
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| Affiliation: | 1.School of Civil Engineering and Mechanics, Huazhong University of Science and Technology,Wuhan 430074, China; 2.The Bureau of Highway Management of Henan Communication and Transportation Department, Zhengzhou 450000, China;) |
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| Abstract: | Based on the analysis of mechanical behavior of T-beam strengthened by external pre-stressing tendon,the control of the free length of externally pre-stressed cable is discussed,and the suggested length of cable for shock absorber arrangement is presented.The detailed structural design of the new box anchor plate anchorage system and the modified deviator are developed.The engineering practice of simply supported T-beam strengthened by external pre-stressing is carried out with the comparison of the mechanical properties before and after reinforcement. |
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| Keywords: | external pre-stressing simply supported T-beam free length anchorage system deviator |
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