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| 玻璃纤维片材加固混凝土梁的抗弯性能研究 | |
| 引用本文： | 欧阳煜,黄奕辉,钱在兹,顾祥林.玻璃纤维片材加固混凝土梁的抗弯性能研究[J].土木工程学报,2002,35(3):1-6. |
| 作者姓名： | 欧阳煜 黄奕辉 钱在兹 顾祥林 |
| 作者单位： | 1. 同济大学,上海大学 2. 华侨大学 3. 浙江大学 4. 同济大学 |
| 基金项目： | 福建省科委重点工业基金资助项目 (98—Z— 35)，福建省建委基金资助项目 (JK— 99— 1 0 ) |
| 摘 要： | 通过 5根玻璃纤维 (GFRP)片材加固混凝土梁和一个对比梁的抗弯性能试验研究 ,分析了GFRP加固梁的抗弯性能和锚固机理。试验结果表明 ,粘贴GFRP片材可以有效地提高梁的抗弯承载力 ,片材锚固区由于应力集中可能发生锚固粘结破坏 ,锚固区采用U形箍可以有效地防止锚固破坏。根据试验分析 ,提出了梁抗弯承载力计算方法 ,弹性阶段锚固区片材拉力计算公式和最大锚固剪应力、最大剥离正应力计算公式 ,计算结果和试验数据吻合较好。 |
| 关 键 词： | 钢筋混凝土梁 玻璃纤维片材 加固 抗震承载力 锚固剪应力 剥离正应力 |
| 文章编号： | 1000-131X(2002)03-0001-06 |
| 修稿时间： | 2000年1月11日 |
THE ANALYSIS OF FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH GLASS FIBER REINFORCED PLASTIC SHEET |
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| Ouyang YuHuang Yihui.THE ANALYSIS OF FLEXURAL BEHAVIOR OF REINFORCED CONCRETE BEAMS STRENGTHENED WITH GLASS FIBER REINFORCED PLASTIC SHEET[J].China Civil Engineering Journal,2002,35(3):1-6. | |
| Authors: | Ouyang YuHuang Yihui |
| Abstract: | The flexural behavior of reinforced concrete beams is studied,it is strengthened with glass fiber reinforced plastic sheet.The test is conducted with five pieces of strengthened beam and one piece of normal beam.The test results show that the bearing capacity is quite increased due to the existence of GFRP sheet.The local bonded failure may be caused by the stress concentration at the end of GFRP sheet.Based on the experiment,a calculation method for the bearing capacity is proposed in the paper.It is shown that the calculated results are in good agreement with the test one. |
| Keywords: | reinforced concrete beam GFRP sheet strengthen bearing capacity bonding shear stress peeling normal stress |
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