|本期目录/Table of Contents|

[1]宋晓滨,吴亚杰,姜英敏.新型自攻螺丝修复带纵缝木梁抗弯性能[J].南京工业大学学报(自然科学版),2016,38(05):45-51.[doi:10.3969/j.issn.1671-7627.2016.05.008]
 SONG Xiaobin,WU Yajie,JIANG Yingmin.Flexural behavior of cracked beams retrofitted by self-tapping screws[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2016,38(05):45-51.[doi:10.3969/j.issn.1671-7627.2016.05.008]
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新型自攻螺丝修复带纵缝木梁抗弯性能()
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《南京工业大学学报(自然科学版)》[ISSN:1671-7627/CN:32-1670/N]

卷:
38
期数:
2016年05期
页码:
45-51
栏目:
出版日期:
2016-09-28

文章信息/Info

Title:
Flexural behavior of cracked beams retrofitted by self-tapping screws
文章编号:
1671-7627(2016)05-0045-07
作者:
宋晓滨吴亚杰姜英敏
同济大学 建筑工程系,上海 200092
Author(s):
SONG XiaobinWU YajieJIANG Yingmin
Department of Structural Engineering,Tongji University,Shanghai 200092,China
关键词:
木梁 纵缝 抗弯承载力 自攻螺丝 理论公式
Keywords:
wood beams lengthwise check moment resistance self-tapping screws analytic solutions
分类号:
TU366;TU323.3
DOI:
10.3969/j.issn.1671-7627.2016.05.008
文献标志码:
A
摘要:
本文针对带纵缝木梁抗弯承载力和自攻螺丝修复效果开展了试验和理论分析。基于35根木梁和相应材性试验获得了开裂和自攻螺丝修复后开裂木梁的承载力系数,并基于梁理论,推导建立了考虑纵缝长度和截面高度位置以及自攻螺丝贯入角和间距等因素的承载力修复系数计算方法。试验结果表明,理论公式与试验结果的误差≤21%,具有较高的预测精度,可以用于指导工程实践。
Abstract:
Longitudinal cracks in wood beams of historical timber structures are commonly seen and can impair the load-carrying capacity of such beams. This paper presents the flexural loading test results of 35 full-scale wood beams,with saw kerfs simulating lengthwise checks,to identify the influence of cracks and the retrofitting effect of self-tapping screws. Analytical solutions were derived for the moment resistance of the cracked wood beams and those retrofitted by self-tapping screws,with consideration of the length and vertical position of the cracks and the inclination and spacing of the screws. Comparison between the predictive results and the test results showed the errors were less than 21%, indicating good agreement. The generated knowledge can be used as reference for retrofitting designs of existing timber members.

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备注/Memo

备注/Memo:
收稿日期:2016-06-21
基金项目:国家自然科学基金(51478336); 上海市科委基金(13231201700)
作者简介:宋晓滨(1977—),男,上海人,副教授,博士,主要研究方向为传统和现代木结构抗震和修复加固方法,E-mail:xiaobins@tongji.edu.cn.
引用本文:宋晓滨,吴亚杰,姜英敏.新型自攻螺丝修复带纵缝木梁抗弯性能[J].南京工业大学学报(自然科学版),2016,38(5):45-51..
更新日期/Last Update: 2016-09-20