• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Composite Structures >Reinforced concrete beam-column joint strengthened with carbon fiber reinforced polymer
【24h】

Reinforced concrete beam-column joint strengthened with carbon fiber reinforced polymer

机译：碳纤维增强聚合物增强的钢筋混凝土梁柱节点

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

An effective rehabilitation strategy is proposed to enhance the strength and stiffness of the beam-column joint in this study. An analytical model is proposed to predict the column shear of the joints strengthened with carbon fiber reinforced polymer (CFRP). Three full scale interior beam-column joints, including two specimens strengthened with CFRP and one prototype specimen, are tested in this study. The specimens are designed to represent the pre-seismic code design construction in which there is no transverse reinforcement. A new optical non-contact technique, digital image correlation (DIC), which can measure the full strain field of specimen, is used to measure and observe the full strain field of the joint. The experimental results show that the beam-column joints strengthened with CFRP can increase their structural stiffness, strength, and energy dissipation capacity. The rehabilitation strategy is effective to increase the ductility of the joint and transform the failure mode to beam or delay the shear failure mode. By observing the measured results, it is found that the mechanical anchorages can prevent the debonding of CFRP. Comparing the analytical and experimental results, the proposed model can accurately predict the column shear and shear strength of the joints strengthened with CFRP.
机译：在这项研究中，提出了一种有效的康复策略来增强梁柱节点的强度和刚度。提出了一种分析模型来预测碳纤维增强聚合物（CFRP）加固的节点的柱剪力。在这项研究中测试了三个完整的内部梁柱节点，包括两个用CFRP加固的标本和一个原型标本。这些标本旨在代表没有横向钢筋的地震前规范设计构造。一种新的光学非接触技术，即数字图像相关技术（DIC），可以测量样品的全应变场，用于测量和观察关节的全应变场。实验结果表明，采用CFRP加固的梁柱节点可以提高其结构刚度，强度和耗能能力。康复策略有效地提高了关节的延展性，并将破坏模式转变为束流或延迟了剪切破坏模式。通过观察测量结果，发现机械锚固可以防止CFRP的剥离。对比分析结果和实验结果，提出的模型可以准确预测碳纤维布加固节点的柱剪力和抗剪强度。

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