• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>SP-230; International Symposium on Fiber-Reinforced Polymer(FRP) Reinforcement for Concrete Structures; 20051106-09; Kansas City,MI(US) >External Prestressing Concrete Columns with Fibrous Composite Belts
【24h】

External Prestressing Concrete Columns with Fibrous Composite Belts

机译：带纤维复合带的体外预应力混凝土柱

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

Five square columns were constructed to model shear-deficient columns and tested under constant axial compression and reversed cyclic lateral load, simultaneously. The retrofitting scheme consisted of wrappingthe column along its end parts, i.e. around the plastic hinge area, by use of FRP in the form of three-centimeter wide belts. Both carbon and aramid/epoxy belts were used in this study. Moreover, for two of the specimens, the FRP belts were prestressed before applying the lateral load to the columns, and thereby, the effects of active confinement in addition to passive confinement were investigated. The proposed prestressing technique is an innovative method and can be applied manually. Accordingto test results, while the original column exhibited brittle shearfailure, all retrofitted columns developed ductile flexural response. Despite the different initial confining pressures, yet the same lateral stiffness of the confining device, the deformation ductility of all retrofitted columns was similar.
机译：构造了五个方柱来模拟剪切不足的柱，并同时在恒定轴向压缩力和反向循环侧向载荷下进行了测试。改造方案包括通过使用三厘米宽皮带形式的FRP将立柱沿其端部缠绕，即围绕塑料铰链区域。这项研究使用了碳纤维和芳纶/环氧皮带。此外，对于两个样本，在对柱施加侧向载荷之前对FRP带进行了预应力，从而研究了主动约束和被动约束的作用。所提出的预应力技术是一种创新方法，可以手动应用。根据测试结果，虽然原始柱子表现出脆性剪切破坏，但所有改装柱子都出现了延性挠曲响应。尽管初始约束压力不同，但约束装置的侧向刚度相同，所有改型后的立柱的变形延性均相似。

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