| 预应力碳纤维板加固钢梁抗弯性能试验研究 |
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| 引用本文： | 邓朗妮,张鹏,燕柳斌,贾松林.预应力碳纤维板加固钢梁抗弯性能试验研究[J].工程力学,2011(10). |
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| 作者姓名： | 邓朗妮 张鹏 燕柳斌 贾松林 |
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| 作者单位： | 广西工学院土木建筑工程系;广西大学土木建筑工程学院; |
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| 基金项目： | 国家自然科学基金项目(51108099); 广西自然科学基金项目(2010GXNSFB013006); 广西科学研究与技术开发项目(桂科攻0992001-13); 柳州市科学研究与技术开发项目(2009010301) |
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| 摘 要： | 普通外贴碳纤维材料加固钢结构技术无法充分发挥材料的高强性能,加固效果有限,采用预应力加碳纤维加固可有效解决上述缺陷。该文在成功研制用于加固钢结构的碳纤维板张拉装置的基础上,进行预应力碳纤维板加固钢梁抗弯性能试验,研究了预应力碳纤维加固对试件承载力、变形、破坏形态以及碳纤维应用效率的影响。试验结果表明,与非预应力碳纤维板加固的钢梁相比,预应力碳纤维板加固可有效提高试件的抗弯承载力和刚度,充分利用碳纤维材料性能。两端的可靠锚固避免了由于端部锚固不足而发生碳纤维板剥离破坏。
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| 关 键 词： | 预应力 碳纤维板 加固 钢梁 试验 |
FlEXURAL PERFORMANCE EXPERIMENTAL STUDY ON STEEL BEAM STRENGTHEENED WITH PRESTRESSED CFRP PLATE |
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| DENG Lang-ni,ZHANG Peng,YAN Liu-bin,JIA Song-lin.FlEXURAL PERFORMANCE EXPERIMENTAL STUDY ON STEEL BEAM STRENGTHEENED WITH PRESTRESSED CFRP PLATE[J].Engineering Mechanics,2011(10). |
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| Authors: | DENG Lang-ni ZHANG Peng YAN Liu-bin JIA Song-lin |
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| Affiliation: | DENG Lang-ni1,ZHANG Peng1,YAN Liu-bin2,JIA Song-lin1(1.Department of Civil Engineering and Architecture,Guangxi University of Technology,Liuzhou,Guangxi 545006,China,2.College of Civil Engineering and Architecture,Guangxi University,Nanning,Guangxi 530004,China) |
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| Abstract: | The traditional external bonded carbon fiber reinforced polymer(CFRP) composite strengthening steel structure technique has no means of making full use of material properties and has limited strengthening effect,while prestressed CFRP strengthening technique can redeem this deficiency.A tension device of CFRP plate was invented and the steel beams strengthened with prestressed CFRP plates were tested to investigate the load capacity of the beams as well as the deformation and failure mode and utilization ef... |
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| Keywords: | prestress CFRP plate strengthen steel beam test |
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