[1]徐 超,万 华,胡方杰,等.基于不同加固方式的RC梁加固性能试验对比研究[J].西安建筑科技大学学报(自然科学版),2016,48(06):881-886,894.[doi:10.15986/j.1006-7930.2016.06.017]
　XU Chao,WAN Hua,HU Fangjie,et al.Experimental comparative study on performance of RC beams subjected to different strengthening methods[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2016,48(06):881-886,894.[doi:10.15986/j.1006-7930.2016.06.017]
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基于不同加固方式的RC梁加固性能试验对比研究()
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西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年06期
页码:
881-886,894
栏目:
出版日期:
2016-12-31

文章信息/Info

Title:
Experimental comparative study on performance of RC beams subjected to different strengthening methods
文章编号:
1006-7930(2016)06-0881-06
作者:
徐 超1; 2; 万 华2; 胡方杰3; 高荣雄3; 魏 鑫3
1. 海工结构新材料及维护加固技术湖北省重点实验室，湖北 武汉 430040；2. 中交武汉港湾工程设计研究院有限公司，湖北 武汉 430040；3. 华中科技大学土木工程与力学学院，湖北 武汉 430074
Author(s):
XU Chao 1; 2;  WAN Hua2;  HU Fangjie 3;  GAO Rongxiong3;  WEI Xin3
1. Hubei Key Laboratory of Advanced Materials ＆ Reinforcement Technology Research for Marine Environment Structures, Wuhan 430040, China; 2. Cccc Wuhan Harbour Engineering Design and Research Co.Ltd, Wuhan 430040, China; 3. School of Civil Engineering & Mechanics, Huazhong University of Science & Technology, Wuhan 430074, China
关键词:
RC梁; 后粘板材加固; 碳纤维布; 碳纤维板; 钢板; 试验
Keywords:
RC beams;  laminate strengthening;  carbon fiber cloth;  carbon fiber plate;  steel plate;  experiment
分类号:
U445.7
DOI:
10.15986/j.1006-7930.2016.06.017
文献标志码:
A
摘要:
交通建设快速发展的同时，随着桥梁服役时长增加和各种内外在因素的综合作用，大量的桥梁面临加固改造．基于RC梁的截面受力特点，难以避免的截面开裂往往导致结构刚度和承载力下降，并使其耐久性恶化．粘贴板材是RC梁工程加固最常用的加固方式，不同板材所起的加固效果亟待深入研究．研究开展了8根RC梁粘贴板材加固试验，分别为裸梁、粘贴碳纤维布、碳纤维板和钢板，采用两点加载至构件破坏．基此分析不同加固方式下RC梁的应变特点、变形性能、极限强度和破坏模态等受力性能，综合比较不同加固方式的加固效果．研究表明：在防腐措施得以保证的前提下，RC梁粘贴板材的加固效果依次为碳纤维布劣于碳纤维板劣于钢板．
Abstract:
A large number of bridges need reinforcement and reconstruction because of various internal and external factors and service for long time when transportation construction develop rapidly. Based on loading features of RC beams, the section cracking is difficult to avoid and will case the degradation of stiffness, capacity and durability. Laminate strengthening is the most commonly used method of strengthening, the strengthening effect cased by different plate pending further study. 8 RC beams experiment are nude beam, beam with carbon fiber cloth, carbon fiber plate and steel plate respectively. Using two-point loading until member broken.Base on the results analysising the strain features, deformation performance, ultimate strength, failure model and so on. The results show that the strengthening effect of steel plate is the best ,and then carbon fiber plate, and then carbon fiber cloth on the premise of anticorrosion.

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备注/Memo

备注/Memo:
收稿日期：2016-03-15               修改稿日期：2016-11-16

基金项目：中交第二航务工程局有限公司科技项目（201503A）

作者简介：徐超(1973－)，硕士，高级工程师，主要从事桥梁加固设计方面的研究工作．E-mail: 656969962@qq.com

更新日期/Last Update: 2017-02-04