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[1]何敏,陆伟东,岳孔,等.FRP增强胶合木拱的蠕变性能[J].南京工业大学学报(自然科学版),2013,35(02):107-110.[doi:10.3969/j.issn.1671-7627.2013.02.022]
 HE Min,LU Weidong,YUE Kong,et al.Creep performances of FRP reinforced glulam arch[J].Journal of NANJING TECH UNIVERSITY(NATURAL SCIENCE EDITION),2013,35(02):107-110.[doi:10.3969/j.issn.1671-7627.2013.02.022]
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FRP增强胶合木拱的蠕变性能()
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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:
35
期数:
2013年02期
页码:
107-110
栏目:
出版日期:
2013-03-20

文章信息/Info

Title:
Creep performances of FRP reinforced glulam arch
文章编号:
1671-7627(2013)02-0107-04
作者:
何敏1陆伟东1岳孔1宋二玮2
1. 南京工业大学 土木工程学院,江苏 南京 211800; 2. 南京高等职业技术学校,江苏 南京 210019
Author(s):
HE Min1 LU Weidong1 YUE Kong1 SONG Erwei2
1. College of Civil Engineering, Nanjing University of Technology, Nanjing 211800, China; 2. Nanjing Technical Vocational Collage, Nanjing 210019, China
关键词:
胶合木拱 蠕变 花旗松 速生杨木 FRP
Keywords:
glulam arch creep douglas fir fast grow poplar fiber reinforced polymer
分类号:
TU502+.6
DOI:
10.3969/j.issn.1671-7627.2013.02.022
文献标志码:
A
摘要:
通过胶合木拱蠕变试验研究长期荷载作用下胶合木拱的蠕变性能。开展有无纤维增强材料(FRP)增强的6根胶合木拱的蠕变性能试验。结果表明:加载应力对蠕变有重要影响,加载应力水平从30%提高到50%后,花旗松胶合木拱初始位移增加了46.92%; 蠕变位移增加了29.64%; 采用FRP增强可有效抑制蠕变变形,花旗松及速生杨木胶合木拱采用双层FRP增强后,初始位移均降低近80%,而蠕变位移分别降低了68.26%和45.84%。
Abstract:
Creep tests were conducted to investigate the creep performances of glulam arch under long term load. Creep performances of sixglulam arch with or without fiber reinforced polymer(FRP)were studied. The results showed that stress level had much effect on creep. As the stress level improved from 30% to 50% of ultimate strength, the dead load deformation increased by 46.92% and creep deformation increased by 29.64%. FRP reinforcement could reduce creep deformation. After using two layers of FRP reinforcement, dead load deformation of douglas fir and fast grow poplar reduced by 80% while creep deformation reduced by 68.26% and 45.84%.

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备注/Memo

备注/Memo:
收稿日期:2012-05-31
基金项目:江苏省自然科学基金(BK2010552)
作者简介:何敏(1987—),女,浙江湖州人,硕士,主要研究方向为工程木结构; 陆伟东(联系人),教授,E-mail:wdlu@njut.edu.cn..
更新日期/Last Update: 2013-03-31