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首页> 外文期刊>Journal of Zhejiang University Science: An international applied physics & engineering journal >Strengthening reinforced concrete beams using prestressed glass fiber-reinforced polymer-Part II: Analytical study
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Strengthening reinforced concrete beams using prestressed glass fiber-reinforced polymer-Part II: Analytical study

机译：使用预应力玻璃纤维增​​强的聚合物来增强钢筋混凝土梁的第二部分：分析研究

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摘要

Strengthening reinforced concrete (R. C.) beams using prestressed glass fiber-reinforced polymer (PGFRP) was studied experimentally as described in Part I of this paper (Huang et al, 2005). In that paper, R. C. beams, R. C. beams with GFRP (glass fiber-reinforced polymer) sheets, and R. C. beams with PGFRP sheets were tested in both under-strengthened and over-strengthened cases. The test results showed that the load-carrying capacities (ultimate loads) of the beams with GFRP sheets were greater than those of the beams without polymer sheets. The load-carrying capacities of beams with PGFRP sheets were greater than those of beams with GFRP sheets. The objective of this work is to develop an analytical method to compute all of these load-carrying capacities. This analytical method is independent of the experiments and based only on the traditional R. C. and P. C. (prestressed concrete) theory. The analytical results accorded with the test results. It is suggested that this analytical method be used for analyzing and designing R. C. beams strengthened using GFRP or PGFRP sheets.
机译：如本文第一部分所述（Huang等人，2005年），通过实验研究了使用预应力玻璃纤维增​​强聚合物（PGFRP）来增强钢筋混凝土（RC）梁。在那篇论文中，分别在强度不足和强度过高的情况下测试了RC梁，带有GFRP（玻璃纤维增​​强聚合物）薄板的RC梁和带有PGFRP薄板的RC梁。测试结果表明，带有GFRP板的梁的承载能力（最终载荷）大于没有聚合物板的梁的承载能力。 PGFRP薄板的梁的承载能力大于GFRP薄板的梁的承载能力。这项工作的目的是开发一种分析方法来计算所有这些承载能力。这种分析方法与实验无关，仅基于传统的R.C.和P.C.（预应力混凝土）理论。分析结果与试验结果一致。建议将此分析方法用于分析和设计使用GFRP或PGFRP片加固的钢筋混凝土梁。

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