| 火灾（高温）下植筋试件拉拔承载力试验研究 |
| |
| 引用本文： | 刘长青,陆洲导,李占鸿,徐微平.火灾（高温）下植筋试件拉拔承载力试验研究[J].四川大学学报(工程科学版),2010,42(1):74-79. |
| |
| 作者姓名： | 刘长青 陆洲导 李占鸿 徐微平 |
| |
| 作者单位： | 1. 同济大学结构工程与防灾研究所,上海,200092
2. 上海市房地产科学研究院,上海,200031 |
| |
| 基金项目： | 国家自然科学基金资助项目(50778134); 德国慧鱼集团资助项目 |
| |
| 摘 要： | 为了研究植筋试件在火灾(高温)下的力学性能,设计制作了25个植筋试件进行高温下拉拔试验.考虑10d和15 d两种植筋深度,试验中记录了混凝土内部温度、钢筋位移以及拉拔力,并对常温和高温下具有相同植筋深度植筋试件拉拔承载力进行分析.试验结果表明:温度对植筋试件承载力有很大影响,随着温度的升高,植筋试件的拉拔承载力显著下降;当温度高于350℃后,高温下植筋试件的承载力约为常温下的10%～20%.
|
| 关 键 词： | 植筋 高温 植筋深度 拉拔承载力 |
| 收稿时间： | 2008/12/2 0:00:00 |
| 修稿时间： | 7/4/2009 12:00:00 AM |
Experimental Study on the Pullout Strength of Bonded Rebar Under Fire (High Temperature) |
| |
| Liu Changqing,Lu Zhoudao,Li Zhanhong and Xu Weiping.Experimental Study on the Pullout Strength of Bonded Rebar Under Fire (High Temperature)[J].Journal of Sichuan University (Engineering Science Edition),2010,42(1):74-79. |
| |
| Authors: | Liu Changqing Lu Zhoudao Li Zhanhong and Xu Weiping |
| |
| Affiliation: | LIU Chang-qing1,LU Zhou-dao1,LI Zhan-hong2,XU Wei-ping1(1.Research Inst.of Structural Eng., Disaster Reduction,Tongji Univ.,Shanghai 200092,China,2.Shanghai Real-estate Science Research Institute,Shanghai 200031,China) |
| |
| Abstract: | In order to investigate the working behaviors of bonded rebar under fire(high temperature),25 specimens were designed for the test of pullout strength including those working in the ambient circumstance.Two embedment depths(10 d,15 d) were considered.Records were made on the temperatures inside the specimens,bonded rebar displacements and the pullout strengths.The pullout strengths of 10 d and 15 d specimens at different temperatures were analyzed and contrasted the pullout strength of 15 d specimens with t... |
| |
| Keywords: | bonded rebar high temperature embedment depth pullout strength |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《四川大学学报(工程科学版)》浏览原始摘要信息 |
|
点击此处可从《四川大学学报(工程科学版)》下载全文 |
|
