碳纤维材料加固破损预应力混凝土管桩的应用研究

作者：吴锋 时蓓玲 俞立新 丁捍东

单位：中交上海三航科学研究院有限公司 中交上海三航科学研究院有限公司 中交上海三航科学研究院有限公司 中交上海三航科学研究院有限公司 上海200032 上海200032 上海200032 上海200032

关键词：碳纤维  混凝土管桩  极限承载力

分类号：TU753.8

出版年,卷(期):页码：2007,31(3):45-47

摘要：

主要研究了采用碳纤维材料修复加固破损圆环形截面混凝土构件时的情况,推导了混凝土构件的合理加固量和加固后的极限承载力的基本公式,并在此基础上推导出可供工程应用的简化公式。进行的相应的荷载试验验证了公式的可靠性。

Study was made on the repair and strengthening of damaged tubular concrete elements with carbon fiber material. On the basis of the study, basic equations were derived for the rational quantity of strengthening of the concrete elements and the ultimate bearing capacity of the concrete elements after the repair. A simplified equation applicable for engineering projects was then derived on the basis of the basic equations and the reliability of the equation was also verified by corresponding loading tests.

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参考文献：

[1]ZG3H 007-2003,先张法预应力混凝土管桩[S]. [2]赵国藩,李树瑶,廖婉卿等.钢筋混凝土结构的裂缝控制[M].,海洋出版社,1991. [3]CECS 146:2003,碳纤维片材加固混凝土结构技术规程[S]. [4]CECS25:90,混凝土结构加固技术规范[S].

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