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| 产生坑蚀后钢筋疲劳性能的劣化 | |
| 引用本文： | 彭修宁,韦斌凝,张艳琴.产生坑蚀后钢筋疲劳性能的劣化[J].广西大学学报(自然科学版),2009,34(3). |
| 作者姓名： | 彭修宁 韦斌凝 张艳琴 |
| 作者单位： | 1. 西安建筑科技大学土木工程博士后流动站,陕西西安710055;广西大学土木建筑工程学院,广西南宁530004;广西电力工业勘察设计研究院博士后工作站,广西南宁530023 2. 广西大学土木建筑工程学院,广西南宁,530004 3. 广西大学基建处,广西南宁,530004 |
| 基金项目： | 中国博士后科学基金资助项目 |
| 摘 要： | 为研究产生局部锈坑后钢筋疲劳性能的劣化,设计了32根试件并完成了相关的试验,研究了不同锈坑深度与不同疲劳荷载循环次数下钢筋剩余强度的下降规律,反复荷载对混凝土结构的影响比人们目前所认识到的更为严重:当锈坑较浅时,锈蚀的影响与疲劳荷载的作用可被作为两种独立的损伤(它们彼此间为线性关系);但当锈坑深度较深时,锈坑与循环荷载对试件的影响会产生彼此关联,相互促进的作用. |
| 关 键 词： | 坑蚀 钢筋疲劳 劣化 剩余强度 |
Fatigue performance deterioration of bars with unsymmetrical corrosion |
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| PENG Xiu-ning,WEI Bin-ning,ZHANG Yan-qin.Fatigue performance deterioration of bars with unsymmetrical corrosion[J].Journal of Guangxi University(Natural Science Edition),2009,34(3). | |
| Authors: | PENG Xiu-ning WEI Bin-ning ZHANG Yan-qin |
| Institution: | 1.Civil Eng.Postdoctoral Station of Xi'an Univ.of Arch.&Tech.;Xi'an 710055;China;2.College of Civil and Architectural Engineering;Guangxi University;Nanning 530004;3.The Postdoctoral Work Station of Guangxi Electric Power Industry Investigation Design and Research Institute;Nanning 530023;4.Construction Section of Guangxi University;China |
| Abstract: | The fatigue behavior of bars with unsymmetrical corrosion pits is the key in evaluating fatigue behavior of corroded bars used in reinforced concrete structures.In order to study fatigue performance of steel bars with unsymmetrical corrosion pits,experimental research on remained static strength of both not corroded and corroded bars with local pits under fatigue loads has been done.On the base of experimental data,influence of comosion amount and numbers of fatigue louds on remained static strength has bee... |
| Keywords: | unsymmetrical corrosion fatigue of steel bar deterioration residual strength |
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