• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>COMPOSITES+POLYCON >Modeling the Fire Performance of FRP-strengthened Reinforced Concrete Beams
【24h】

Modeling the Fire Performance of FRP-strengthened Reinforced Concrete Beams

机译：建模FRP加强钢筋混凝土梁的火力性能

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents the development of a numerical model for tracing the response of FRP-strengthened reinforced concrete (RC) beams under fire conditions. The model is based on a macroscopic finite element approach and utilizes moment curvature relationships to trace the response of insulated FRP-strengthened RC beams from linear elastic stage to collapse under any given fire exposure and loading scenarios. In the analysis, high temperature material properties, load and restraint conditions, material and geometric nonlinearity are accounted for, and a realistic failure criterion (not critical temperature consideration alone) is applied to determine the failure of beams. The model is validated against fire test data on FRP-strengthened RC beams and is applied to study the effect of FRP-strengthening, insulation scheme and failure criterion on the fire response of FRP-strengthened RC beams. Results from the model indicate that the fire behavior of FRP-strengthened RC beams, provided with supplemental fire insulation, is as good as that of unstrengthened RC beams. A case study is presented to illustrate the application of the model for optimizing the fire insulation scheme to achieve required fire resistance in FRP-strengthened concrete beams.
机译：本文介绍了追踪FRP加强钢筋混凝土（RC）梁在火灾条件下追踪的数值模型的发展。该模型基于宏观有限元方法，利用力矩曲率关系来追踪绝缘FRP加强的RC梁从线性弹性级响应，以在任何给定的火灾暴露和加载方案下塌陷。在分析，高温材料特性，负荷和约束条件下，占据了材料和几何非线性，并且应用了现实的故障标准（单独不关键温度考虑）以确定光束的故障。该模型针对FRP加强的RC光束上的火灾测试数据验证，并应用于研究FRP加强，绝缘方案和故障标准对FRP加强RC梁的火响应的影响。该模型的结果表明FRP加强的RC梁的火灾行为，提供了补充防火，与未经制作的RC梁的RC梁一样好。提出了一种案例研究以说明模型用于优化防火方案，以实现FRP加强的混凝土梁中所需的耐火性。

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