| 钢筋混凝土梁抗弯加固中碳纤维的应用前提和使用面积的研究 |
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| 作者单位： | 合肥工业大学土木建筑工程学院 合肥230009 |
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| 摘 要： | 碳纤维布加固混凝土结构是一种新型的结构加固方法。根据平截面假定和力的平衡关系提出了混凝土梁抗弯加固中碳纤维的应用前提;根据界限破坏模式和延性问题提出了双筋矩形截面梁的最大和最小碳纤维布使用面积的计算方法,并给出相应的计算公式。结果可供碳纤维布加固工程设计参考。
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| 关 键 词： | 碳纤维布(CFRP) RC梁抗弯加固 抗弯承载力 |
STUDY ON THE ASSUMPTION AND THE CONSUMPTION OF CFRP SHEETS IN STRENGTHENING OF RC BEAMS |
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| Authors: | Zhang Yan Chen Daozheng |
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| Abstract: | It is a sort of new-style strengthening method to strengthen the RC beams with carbon fiber reinforced polymers.Based on supposition of plane section and balance of forces,the assumption of CFRP in the strengthening of RC beams is proposed.According to the limit failure mode and ductility,the maximum CFRP area and minimum CFRP area of double tendon rectangular beam are given,and the calculation formulas were proposed.The results provide theoretical basis for design of strengthening with CFRP. |
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| Keywords: | CFRP sheets flexural strengthening of RC beam flexural load-carrying capacity |
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