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基于单板受力的预应力混凝土空心板桥承载力评定

Keywords: 桥梁工程,预应力混凝土空心板,承载力评定,单板受力

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Abstract:

为了研究处于"单板受力"状态桥梁的承载能力,采用已使用10a的旧桥预应力混凝土空心板的试验数据,对既有空心板桥的承载力状况进行了评定。分别基于荷载横向分布和单板受力模式进行抗力-荷载效应分析,以确定既有桥梁的承载力。结果表明,"单板受力"削弱了上部结构的整体作用,降低了桥梁的整体承载力,使得上部主要承重构件处于非常不利的受力状态,降低了结构的耐久性和安全性。用现有承载力评定方法对处于"单板受力"状态的桥梁进行承载力评定,为既有不利状态的空心板桥的承载力评估提供很大的参考价值。

References

[1]  葛俊颖,王海良,解佳飞.一座铰接空心板桥的加固 实践[J].铁道建筑,2009(8): 40-42.GE Jun-ying, WANG Hai-liang, XIE Jia-fei, Strengthening of a Hinged Hollow Slab Bridge[J].Railway Engineering,2009(8): 40-42.
[2]  陈淮,邹旭岩,王艳,等.预应力碳纤维布加固空心 板桥极限承载力全过程分析[J].公路交通科技, 2010,27(9): 68-79.CHEN Huai,ZOU Xu-yan,WANG Yan,et al.Analysis of Ultimate Bearing Capacity for Hollow Slab Bridge Strengthened by Prestressed CFRP Sheets[J].Journal of Highway and Transportation Research and Development, 2010,27(9): 68-79.
[3]  JTG/T J21—2011,公路桥梁承载能力检测评定规程[S].JTG/T J21—2011,Specification for Inspection and Evaluation of Load-bearing Capacity of Highway Bridge[S].
[4]  史建方.桥梁单板受力成因分析和防治对策[J].公 路,2004(10): 71-73.SHI Jian-fang.Analysis of Bridge Single Beam Loadbearing Causes and Prevention Countermeasures[J].Highway,2004(10): 71-73.
[5]  赵素洁.行车道板单板受力状态分析[J].中外公 路,2003,23(4): 29-30.ZHAO Su-jie.State Analysis of Single Beam Load-bearing of Carriageway[J].Journal of China & Foreign Highway, 2003,23(4): 29-30.
[6]  王砚桐.高等级公路中“单板受力”现象及原因分析 [J].公路交通技术,2004(4): 29-32.WANG Xian-tong.Phenomenon of“Single Beam Bearing” in High-grade Highways and Analysis of Its Reasons[J].Technology of Highway and Transport, 2004(4): 29-32.
[7]  JTJ 073—96,公路养护技术规范[S].JTG 073—96,Technical Code for Maintenance of Highway [S].
[8]  JTJ 023—85,公路钢筋混凝土及预应力混凝土桥涵设 计规范[S].JTJ 023—85,Code for Design of Reinforced Concrete and Prestressed Concrete Highway Bridges and Culverts[S].
[9]  JTG D62—2004,公路钢筋混凝土及预应力混凝土桥 涵设计规范[S].JTG D62—2004,Code for Design of Highway Reinforced Concrete and Prestressed Concrete Bridges and Culverts [S].
[10]  马亚丽,王东威,赵卓.既有预应力混凝土空心板桥 承载力的检测与评定[J].公路交通科技,2008,25 (8): 76-81.MA Ya-li,WANG Dong-wei,ZHAO Zhuo.Inspection and Evaluation of Load-bearing Capacity of Existing Prestressed Concrete Hollow Slab[J].Journal of Highway and Transportation Research and Development, 2008, 25 (8): 76-81.
[11]  李宏志.旧桥预应力混凝土空心板的破坏荷载试验研 究[J].铁道建筑,2007(4): 24-25.LI Hong-zhi.Destructive Test Research of Reinforced Old Pre-stressed Concrete Hollow Slab[J].Railway Engineering,2007(4): 24-25.
[12]  李宏志,赵卓,周洪文,等.碳纤维布加固旧桥预应 力混凝土空心板的破坏荷载试验研究[J].河南科 学,2006,24(5): 733-736.LI Hong-zhi, ZHAO Zhuo, ZHOU Hong-wen, et al.Destructive Test Research of CFS Reinforced Pre-stressed Concrete Hollow Slab[J].Henan Science,2006,24 (5): 733-736.

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