| 新型环形约束收缩抗裂测试装置隔板优选试验研究 |
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| 引用本文： | 李思龙,林旭健,戴益华,陈永波,梁咏宁,季韬. 新型环形约束收缩抗裂测试装置隔板优选试验研究[J]. 福州大学学报(自然科学版), 2011, 39(1): 120-124 |
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| 作者姓名： | 李思龙 林旭健 戴益华 陈永波 梁咏宁 季韬 |
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| 作者单位： | 福州大学土木工程学院;福建建工集团总公司; |
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| 基金项目： | 福建省科技厅重点资助项目(2007H0024); 福建省自然科学基金资助项目(2008J0331) |
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| 摘 要： | 基于新型环形约束收缩抗裂测试装置,通过改变隔板形状(矩形、梯形)和尺寸(高度、厚度)进行隔板优选试验及有限元数值模拟.研究表明:隔板能够在试件环中引起应力集中,诱导试件环提早开裂,避免传统环形试验装置存在的试件环不开裂、慢开裂等缺点;选定了基于新型环形约束收缩抗裂测试装置的最佳隔板:形状为矩形、高度为50mm、厚度为2...
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| 关 键 词： | 环形约束收缩 抗裂测试装置 隔板 有限元数值模拟 混凝土 |
Experimental study for clapboard optimal selection test of new ring restrained shrinkage cracking resistant testing equipment |
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| LI Si-long,LIN Xu-jian,DAI Yi-hu,CHEN Yong-bo,LIANG Yong-ning,JI Tao. Experimental study for clapboard optimal selection test of new ring restrained shrinkage cracking resistant testing equipment[J]. Journal of Fuzhou University(Natural Science Edition), 2011, 39(1): 120-124 |
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| Authors: | LI Si-long LIN Xu-jian DAI Yi-hu CHEN Yong-bo LIANG Yong-ning JI Tao |
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| Affiliation: | LI Si-long1,LIN Xu-jian1,DAI Yi-hua2,CHEN Yong-bo1,LIANG Yong-ning1,JI Tao1(1.College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China,2.Fujian Construction Engineering Group Corporation,Fujian 350003,China) |
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| Abstract: | Based on a new ring restrained shrinkage cracking resistant testing equipment,an optimal selection test of clapboard and a finite element numerical simulation were made by changing the shape(rectangle,trapezoidal) and the size(height,thickness) of clapboard.The study results reveal that the clapboard can cause stress concentration,and make specimen crack more early.Some obvious shortcomings available in traditional ring testing equipments,for example,non-cracking or cracking slowly,can be advoided.The optim... |
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| Keywords: | new ring restrained shrinkage cracking resistant testing equipment clapboard finite element numerical simulation concrete |
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