[1]杨 勇,李 辉,鲍子虞,等.粘贴钢板加固裂损木梁受力性能试验研究[J].西安建筑科技大学学报：自然版,2016,48(02):171-177.[doi:10.15986/j.1006-7930.2016.02.004]
　YANG Yong,LI Hui,BAO Ziyu,et al.Experimental study on mechanical performance of longitudinal cracked wooden beams retrofitted with bonded steel plates[J].J.Xi’an Univ. of Arch. & Tech.：Natural Science Edition,2016,48(02):171-177.[doi:10.15986/j.1006-7930.2016.02.004]
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粘贴钢板加固裂损木梁受力性能试验研究()
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西安建筑科技大学学报：自然版[ISSN:1006-7930/CN:61-1295/TU]

卷:
48
期数:
2016年02期
页码:
171-177
栏目:
出版日期:
2016-04-28

文章信息/Info

Title:
Experimental study on mechanical performance of longitudinal cracked wooden beams retrofitted with bonded steel plates
文章编号:
1006-7930(2016)02-0171-07
作者:
 杨 勇1; 李 辉1; 鲍子虞1; 2; 薛建阳1
1.西安建筑科技大学土木工程学院，陕西 西安，710055；2.广东省建筑设计研究院，广东 广州，510000
Author(s):
YANG Yong1;  LI Hui1;  BAO Ziyu1; 2;  XUE Jianyang1
1. School of Civil Engineering, Xi’an Univ. of Arch. & Tech., Xi?an, 710055, China; 2. Architectural Design Institute of Guangdong, Guangzhou, 510000, China
关键词:
裂损木梁; 钢板; 加固方法; 受力性能; 承载能力; 试验研究
Keywords:
cracked wooden beam;  bonded steel plates;  retrofitted method;  mechanical performance;  bending capacity;  experimental study
分类号:
TU312.1
DOI:
10.15986/j.1006-7930.2016.02.004
文献标志码:
A
摘要:
纵向干缩裂缝是既有木梁中常见裂缝，对木梁受力性能影响较大．本文在综合比较多种加固方法后，拟采用粘贴钢板方法对严重裂损木梁进行补强加固．结合3 个采用不同厚度钢板加固裂损木梁试件和1 个未加固对比试件的试验研究，对粘贴钢板加固裂损木梁的传力机理和破坏形态进行了分析．试验研究结果表明，采用粘贴钢板加固技术能有效阻止既有纵向裂缝开展、有效提高裂损木梁承载能力和刚度，适合于裂损严重且不易更换的既有裂损木梁的补强加固．进一步结合试验结果，初步建立了粘贴钢板加固裂损木梁的承载能力计算方法．
Abstract:
The longitudinal shrinkage cracks are very common in beams of existing wooden structures building, and these longitudinal cracks play important roles on the mechanical performance and always lead to failure or collapse. With comparison of several retrofitted methods studied before, a retrofitted method with bonded steel plates was introduced to strengthen the wooden beams severely cracked. Based on experimental results of three bonded steel plates retrofitted wooded beam specimens and one control specimen unretrofitted, the failure pattern and failure mechanics of retrofitted specimens were studied. Seen from the experimental results, it was denoted that the steel plates method could effectively postpone and stop the longitudinal cracks, and the bending capacity as well as the flexure rigidity of the wooden beams were substantial improved, therefore the steel plates method was suitable for retrofitting the wooden beams that severely cracked and hard to be replaced. Furthermore, based on the experimental results, the calculation method of bending capacity of retrofitted beams were derived and proposed.

参考文献/References:

[1] 谢启芳.中国木结构古建筑加固的试验研究机理论分析[D].西安: 西安建筑科技大学, 2007.

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JI Zhuo. Experimental study on the performance of reinforce timber beam with CFRP[D].Shanghai: Shanghai

Jiaotong University, 2009.

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[4] 祝金标. 碳纤维布(CFRP)修复加固破损木梁的试验研究[D].杭州: 浙江大学, 2005.

ZHU Jinbiao. Experimental research on Carbon fibre reinforced plastics (CFRP) repair the damaged timber beam [D]. Hangzhou: Zhejiang University, 2005.

[5] KENNETH C, JOHN S, SIMON Lacroix. Composite reinforcement of timber in bending [J]. Canadian Journal

of Civil Engineering, 2000, 27: 899-906.

[6] CHEN Yongxian. Flexural analysis and design of timber strengthened with high strength composites[J]. New Jersey: New Brunswick, 2003.

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相似文献/References:

[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：自然版,2016,48(06):881.[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(02):881.[doi:10.15986/j.1006-7930.2016.06.017]

备注/Memo

备注/Memo:
收稿日期：2015-05-11 修改稿日期：2016-04-08
基金项目：国家十二五科技支撑基金资助项目子课题项目
作者介绍：杨勇(1976-)，男，博士，教授，主要从事钢-混凝土组合结构和钢筋混凝土方向的研究教学工作．E-mail:Yyhhp2004@163.com
更新日期/Last Update: 2016-05-23