| FRP筋应力松弛试样端部锚夹方法研究 |
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| 引用本文： | 袁国青,董国华,马剑. FRP筋应力松弛试样端部锚夹方法研究[J]. 玻璃钢/复合材料, 2009, 0(5): 3-6 |
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| 作者姓名： | 袁国青 董国华 马剑 |
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| 作者单位： | 同济大学航空航天与力学学院,上海,200092 |
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| 基金项目： | 交通部科技项目资助，上海市重点学科建设项目资助 |
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| 摘 要： | 将FRP筋作为预应力筋使用,必须了解其应力松弛特性.要测定FRP筋的应力松弛特性,关键是要找到一种有效的试样端部锚固方法.FRP筋一般的锚具系统应用于松弛特性测试时存在这样或那样的缺陷,为此本文提出了一种创新的测试FRP筋应力松弛特性的试样端部加强锚固的方法,实现了松弛试验时端部近似为零的滑移,保证了试验段应变的恒定,从而可准确测定FRP筋的应力松弛性能.
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| 关 键 词： | FRP筋 应力松弛 试样 锚固方法 |
STUDY OF ENDS ANCHOR METHOD OF STRESS RELAXATION SPECIMENS OF FRP TENDONS |
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| YUAN Guo-qing,DONG Guo-hua,MA Jian. STUDY OF ENDS ANCHOR METHOD OF STRESS RELAXATION SPECIMENS OF FRP TENDONS[J]. Fiber Reinforced Plastics/Composites, 2009, 0(5): 3-6 |
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| Authors: | YUAN Guo-qing DONG Guo-hua MA Jian |
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| Affiliation: | YUAN Guo-qing,DONG Guo-hua,MA Jian (School of Aerospace Engineering , Applied Mechanics,Tongji University,Shanghai 200092,China) |
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| Abstract: | As prestressing tendons,the stress relaxation property of FRP tendons must be studied.To survey it,the key is to find an effective method anchoring the specimen's ends.The usual FRP tendon anchor systems are not fit to measure the stress relaxation property.Therefore,an innovation anchor method has been put forward in this paper.Applied the anchor system,the slip of the specimen's ends is nearly zero so that the strain of the test section can be maintained constant during the test and the measure results sh... |
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| Keywords: | FRP tendon stress relaxation specimen anchor method |
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