...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Composites for Construction >Tests on RC Beams Strengthened at the Span with Externally Bonded Polymers Reinforced with Carbon or Steel Fibers
【24h】

Tests on RC Beams Strengthened at the Span with Externally Bonded Polymers Reinforced with Carbon or Steel Fibers

机译：用碳纤维或钢纤维增强的外部粘结聚合物在跨度上加固的RC梁的测试

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The main objective of the experimental work reported herein is the comparative evaluation of steel-reinforced polymers (SRPs) and carbon-reinforced polymers (CFRPs) used as externally-bonded reinforcement in strengthening of reinforced-concrete (RC) members. Tensile stress strain as well as bond constitutive laws for these materials were first derived from 16 tests and are summarized here. Results are then reported from four-point bending tests of five full-scale RC beams strengthened at their span using SRP and CFRP strips. The bond tests have shown that by providing a bond length greater than the effective one, neither the bond strength nor the deformation capacity are increased, whereas by increasing the width of the strip the bond strength is increased. From the bending tests of beams it was found that the use of both SRP and CFRP strips resulted in a significant increase in strength (up to 92%) with respect to the strength of the initial specimen. The experimentally measured strengths were estimated analytically using both the experimental measurements of the specimen deformations and the pertinent provisions of standards from the American Concrete Institute and the European Committee for Standardization.
机译：本文报道的实验工作的主要目标是对钢筋混凝土（RC）构件中用作外部粘结钢筋的钢增强聚合物（SRP）和碳增强聚合物（CFRP）进行比较评估。这些材料的拉伸应力应变以及粘结本构定律首先来自16个试验，并在此处进行了总结。然后报告了使用SRP和CFRP筋条加固的五个全尺寸RC梁的四点弯曲测试的结果。粘结试验表明，通过提供大于有效长度的粘结长度，粘结强度和变形能力均不会增加，而通过增加带材的宽度，粘结强度会增加。从梁的弯曲测试中发现，使用SRP和CFRP板条可以使强度相对于原始样品的强度显着提高（最高达到92％）。使用样品变形的实验测量值以及美国混凝土协会和欧洲标准化委员会的相关标准规定，对实验测量的强度进行了分析评估。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号