中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊
重庆交通大学学报（自然科学版）

重庆交通大学学报（自然科学版） ›› 2013, Vol. 32 ›› Issue (增1): 799-802.DOI: 10.3969/j.issn.1674-0696.2013.sup.1.17

• 桥梁维修加固 • 上一篇    下一篇

双层预应力碳纤维板加固大比例T型梁试验研究

卓静1,2，杨宏3   

  1. 1.重庆交通科研设计院，重庆400067;2.重庆纽劲建筑科技有限公司，重庆400038;3.重庆市政设施管理局，重庆400015
  • 收稿日期:2013-03-01 修回日期:2013-05-20 出版日期:2013-06-30 发布日期:2015-03-12
  • 作者简介:卓静(1972—)，男，重庆人，副研究员，博士，主要从事预应力FＲP加固技术方面的研究。E-mail:yakzj@163.com.

Experimental Ｒesearch on ＲC T Beams Strengthened with Double Prestressed CFＲP Strip

Zhuo Jing1,2，Yang Hong3   

  1. 1.Chongqing Communications Ｒesearch ＆ Design Institute，Chongqing 400067，China; 2.Chongqing New Generation Building Science ＆ Technology Co.Ltd.，Chongqing 400038，China; 3.Chongqing Municipal Facilities Administration，Chongqing 400015，China
  • Received:2013-03-01 Revised:2013-05-20 Online:2013-06-30 Published:2015-03-12

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摘要： 为适应桥梁加固对大吨位预应力加固的需要，研制了能一次夹持双层碳纤维板的波形锚BXM502D，通过锚固 组装件的静力破断试验，验证了该型号波形锚的锚固能力能达到600kN以上。将波形锚BXM502D用于大比例T 型梁进行双层预应力碳纤维板的加固试验，双层碳纤维板的预拉力达到300kN;试验结果表明双层预应力碳纤维板 能与被加固的混凝土梁共同工作，非常显著地提高了原结构的开裂、屈服荷载，也大幅提高了原结构的极限承载力。

关键词: 预应力碳纤维板, 波形锚, 铰式锚, 桥梁加固

Abstract: In order to meet the need of strengthened bridge of large tonnage prestressed CFＲP，BXM502D which can anchor double CFＲP strips was developed． Through the static anchoring assembly breaking test，it was verified that the BXM502D anchorage capacity could reach above 600 kN． Experimental research for large proportion of T beam strengthened with prestressed double CFＲP strips were designed，the double CFＲP strips were tensioned 300 kN by the anchorage BXM502D． The test results show that double prestressed CFＲP plates can significantly improve the original structure of cracking，yielding load，and greatly improve the ultimate bearing capacity of the structure

Key words: prestressed CFＲP strip, Wave-Shaped-Gear-Grip( WSGG) , hinge type anchorage, strengthened bridge

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