| 碳纤维加固预应力受弯构件的计算方法探讨 |
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| 引用本文： | 朱利明,朱超,阳春龙.碳纤维加固预应力受弯构件的计算方法探讨[J].世界桥梁,2011(6):66-69,74. |
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| 作者姓名： | 朱利明 朱超 阳春龙 |
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| 作者单位： | 1. 中铁大桥勘测设计院有限公司,湖北武汉,430050
2. 西南交通大学,四川成都,610031 |
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| 摘 要： | 预应力连续箱梁抗弯强度不足导致跨中下挠及开裂是我国早期桥梁病害中的一个较普遍问题,采用碳纤维加固此类病害已在多座桥梁上使用,效果均良好.但目前规范尚无标准的相关设计计算方法,通过分析碳纤维加固预应力受弯构件结构破坏时的原理及理论破坏次序,提出了采用极限应变控制设计的加固设计思路,并在考虑原结构材料折减的基础上,结合规范...
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| 关 键 词： | 桥梁加固 预应力 受弯构件 碳纤维 计算方法 |
Study of Design and Calculation Method for Strengthening of Prestressed Concrete Flexural Components by CFRP |
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| ZHU Li-ming,ZHU Chao,YANG Chun-long.Study of Design and Calculation Method for Strengthening of Prestressed Concrete Flexural Components by CFRP[J].World Bridges,2011(6):66-69,74. |
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| Authors: | ZHU Li-ming ZHU Chao YANG Chun-long |
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| Institution: | ZHU Li-ming1,ZHU Chao2,YANG Chun-long1(1.China Railway Major Bridge Reconnaissance and Design Institute Co.,Ltd.,Wuhan 430050,China,2.Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The midspan deflecting and cracking of prestressed concrete(PC) continuous box girder caused by insufficient flexural strength of the girder is a common problem of deterioration of the PC continuous box girder bridges built in China in the early years.Though the strengthening of the structure with the deterioration by carbon fiber reinforced polymer(CFRP) has been applied to a great number of the bridges and the effect of the strengthening is sound,there have been no related standard design and calculation ... |
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| Keywords: | bridge strengthening prestress flexural component carbon fiber reinforced polymer calculation method |
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