|本期目录/Table of Contents|

[1]张建伟,张瑞云,杜修力.芳纶纤维布松弛性能试验[J].建筑科学与工程学报,2010,27(01):73-77，126.
　ZHANG Jian-wei,ZHANG Rui-yun,DU Xiu-li.Experiment of Relaxation Performance of AFRP Sheets[J].Journal of Architecture and Civil Engineering,2010,27(01):73-77，126.
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
27卷
期数:
2010年01期
页码:
73-77，126
栏目:
出版日期:
2010-03-20

文章信息/Info

Title:
Experiment of Relaxation Performance of AFRP Sheets
作者:
张建伟1,2,张瑞云1,杜修力2
1. 北京工业大学建筑工程学院,北京 100124; 2. 北京工业大学[KG*2]城市与工程安全减灾省部 共建教育部重点实验室,北京 100124
Author(s):
ZHANG Jian-wei1,2, ZHANG Rui-yun1, DU Xiu-li2
1. School of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China; 2. Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education, Beijing University of Technology, Beijing 100124, China
关键词:
芳纶纤维布;  环氧树脂胶;  应力松弛;  张拉控制应力
Keywords:
AFRP sheet;  epoxy adhesive;  stress relaxation;  tension control stress
分类号:
TU375
DOI:
-
文献标志码:
A
摘要:
为了研究预应力芳纶纤维布因应力松弛引起的预应力损失,进行了28个试件的应力松弛性能试验。结果表明:预应力芳纶纤维布的应力松弛损失随着张拉控制应力的提高而增大; 松弛损失率与时间对数线性相关; 持荷初期应力松弛发展较快,200 h后趋于稳定; 浸胶的芳纶纤维布应力松弛损失相对于不浸胶的芳纶纤维布较小; 10 ℃～30 ℃条件下,温度变化对预应力芳纶纤维布的应力松弛影响不明显。
Abstract:
For researching the loss of prestress caused by the stress relaxation of prestressed aramid fiber reinforced polymer(AFRP)sheets, an experiment about stress relaxation performances of aramid fiber sheets with 28 specimens was carried out. The results show that the higher the tension control stress is, the greater the stress relaxation loss becomes; the relaxation rate linearly depends on the time logarithm; stress relaxation is fast at the beginning and tends to be stable after 200 h; the stress relaxation loss of dipping AFRP sheets is lower than the sheets without dipping; stress relaxation of prestressed AFRP sheets caused by the temperature variations is not obvious under 10 ℃～30 ℃ conditions.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2009-10-12
基金项目:北京市教育委员会科技项目(KM20081005010); 北京市优秀人才培养项目(20081D0501500182)
作者简介:张建伟(1971-),男,河北丰润人,副教授,工学博士,博士后,E-mail:zhangjw@bjut.edu.cn。
更新日期/Last Update: 2010-03-20