| 基于FRP-OFBG智能钢绞线对无黏结部分预应力混凝土梁的全过程分析方法 |
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| 引用本文： | 张鹏,钟鑫,邓朗妮,廖羚,叶黎明. 基于FRP-OFBG智能钢绞线对无黏结部分预应力混凝土梁的全过程分析方法[J]. 混凝土, 2011, 0(8): 27-29. DOI: 10.3969/j.issn.1002-3550.2011.08.009 |
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| 作者姓名： | 张鹏 钟鑫 邓朗妮 廖羚 叶黎明 |
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| 作者单位： | 广西工学院土木建筑工程系,广西柳州,545006 |
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| 基金项目： | 广西科学研究与技术开发计划项目(0815007-1-10); 广西自然科学基金项目(0728044); 柳州市科学研究与技术开发项目(2007021303) |
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| 摘 要： | 结合用FRP筋封装的光纤光栅传感器即FRP-OFBG智能复合筋和钢绞线的力学特性,研制出了在钢绞线拉索中直接增加FRP-OFBG的智能钢绞线.通过其在受力时波长的改变值,推算出结构受力截面各个部位的应变值.提出了运用虚拟混凝土条带对无黏结混凝土梁截面进行开裂和破坏预警,以及FRP-OFBG智能钢绞线对无黏结预应力混凝土...
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| 关 键 词： | 光纤光栅(OFBG) 智能钢绞线 应变 分析方法 |
Full-process analysis method for unbonded partially prestressed concrete beam w ith FRP-OFBG strand |
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| ZHANG Peng,ZHONG Xin,DENG Lang-ni,LIAO Ling,YE Li-ming. Full-process analysis method for unbonded partially prestressed concrete beam w ith FRP-OFBG strand[J]. Concrete, 2011, 0(8): 27-29. DOI: 10.3969/j.issn.1002-3550.2011.08.009 |
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| Authors: | ZHANG Peng ZHONG Xin DENG Lang-ni LIAO Ling YE Li-ming |
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| Affiliation: | ZHANG Peng,ZHONG Xin,DENG Lang-ni,LIAO Ling,YE Li-ming (Department of Civil Engineering and Architecture,Guangxi University of Technology,Liuzhou 545006,China) |
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| Abstract: | With FRP-OFBG sensor bars and high strength of strand.Developed smart strand stay cable can be obtained by installing FRP-OFBG bar.Through its wavelength changed by the value of the force,calculate the strain of cross-section's every parts.Proposed use virtual strip concrete,can be effective to prestressed structures early warning when cracks appear and concrete has crushed.A full-process analysis method for unbonded partially prestressed concrete beam with FRP-OFBG strand is proposed.Comparisons show that ... |
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| Keywords: | optical FBG smart strand strain analysis method |
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