...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Construction and Building Materials >Parametric study on the behavior of short span composite bridge girders strengthened with carbon fiber reinforced polymer plates
【24h】

Parametric study on the behavior of short span composite bridge girders strengthened with carbon fiber reinforced polymer plates

机译：碳纤维增强聚合物板加固短跨度复合材料桥梁的参数化研究

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

摘要

In the last few years, extensive research has been done on the strengthening of concrete structures using fiber reinforced polymers (FRP) as externally bonded sheets or plates. A limited number of studies have also been performed on the strengthening of steel and steel-concrete composite structures. Constructing and testing steel-concrete composite beams is not only time consuming but also expensive. Following a successful experimental study by the authors on strengthening steel-concrete composite girders using carbon fiber reinforced polymer (CFRP) plates, it was desired to investigate the effect of various parameters on the behavior of strengthened composite sections. This paper presents an analytical parametric study on the behavior of steel-concrete composite beam that has been strengthened with CFRP plates. The parametric study investigated the influence of some of the important parameters on the behavior of the section through the moment-curvature relationship. Included were the effect of the concrete compressive strength, the yield strength of the steel, the stiffness of the CFRP plate, the thickness of the CFRP plate, the ultimate strain of the CFRP plate, and the steel beam bottom flange area. In addition, the effect of girder damage on the overall load distribution of a typical short span composite bridge is investigated for various load cases using the grillage method of analysis.
机译：在过去的几年中，已经进行了广泛的研究，以使用纤维增强聚合物（FRP）作为外部粘结的板或板来增强混凝土结构。在钢和钢混凝土复合结构的加固方面也进行了有限的研究。钢-混凝土组合梁的建造和测试不仅耗时而且昂贵。在作者成功进行了使用碳纤维增强聚合物（CFRP）板加固钢-混凝土复合大梁的实验研究之后，希望研究各种参数对增强复合材料截面性能的影响。本文对用CFRP板加固的钢混凝土组合梁的性能进行了分析参数研究。参数研究通过弯矩-曲率关系研究了一些重要参数对截面行为的影响。其中包括混凝土抗压强度，钢的屈服强度，CFRP板的刚度，CFRP板的厚度，CFRP板的极限应变以及钢梁底部法兰面积的影响。此外，使用格栅分析方法，研究了在各种荷载情况下，梁损坏对典型的短跨复合桥整体荷载分布的影响。

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