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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

28卷

期数:

2011年02期

页码:

75-78,126

栏目:

出版日期:

2011-06-20

文章信息/Info

Title:

Effect of Surface Preparation on Bearing Capacity of RC Beams Strengthened with FRP

作者:

董海,何化南,吴智敏,石昌文

大连理工大学 海岸和近海工程国家重点实验室,辽宁 大连 116024

Author(s):

DONG Hai, HE Hua-nan, WU Zhi-min, SHI Chang-wen

State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

关键词:

界面处理;  纤维增强聚合物;  钢筋混凝土梁;  承载力;  极限弯矩;  凿毛

Keywords:

surface preparation;  fiber reinforced polymer;  reinforced concrete beam;  bearing capacity;  ultimate moment;  artificial chiseling

分类号:

TU337.4

DOI:

-

文献标志码:

A

摘要:

以梁跨度、配筋率为参数,利用5组试件对比研究了界面凿毛对纤维增强聚合物(FRP)加固钢筋混凝土梁极限弯矩的影响。结果表明:混凝土界面凿毛后的FRP加固梁的极限弯矩要小于砂轮打磨梁的极限弯矩,并且随着梁跨度的增大,砂轮打磨梁与凿毛梁的极限弯矩差值增大; 随着配筋率的增大,砂轮打磨梁与凿毛梁的极限弯矩差值减小。

Abstract:

Using a total of 5 group specimens, through two variables of span of beam and reinforcement ratio, the effect of the artificial chiseling on ultimate moment of reinforced concrete(RC)beams strengthened with fiber reinforced polymer(FRP)was investigated. The results show that the ultimate moment of an FRP strenghened beam with artificial chiseling is lower than that of an FRP strenghened beam with wheel grinding. Besides, as the span of beam increases, the difference values increase between the ultimate moment of a beam with artificial chiseling and that of a beam with wheel grinding; and the difference values decrease as the reinforcement ratios increase.

参考文献/References:

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[11]任 伟,贺拴海,袁旭斌.粘贴纤维布、钢板加固钢筋混凝土T梁试验研究[J].西安建筑科技大学学报:自然科学版,2008,40(3):323-330. REN Wei,HE Shuan-hai, YUAN Xu-bin.Test Study of Strengthening RC T-beam with Bonded FRP and Steel Plates[J].Journal of Xi'an University of Architecture & Technology:Natural Science Edition,2008,40(3):323-330.

相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2011-01-05
基金项目:“十一五”国家科技支撑计划项目(2006BAJ03A03-09); 国家自然科学基金项目(50578025)
作者简介:董 海(1984-),男,辽宁庄河人,工学硕士研究生,E-mail:donghainihaya@126.com。

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更新日期/Last Update: 2011-06-20