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Behavior of eccentrically loaded slender concrete columns reinforced with CFRP bars.

机译:CFRP筋加固的偏心细长混凝土柱的性能。

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摘要

In a highly corrosive environment, corrosion is the main factor leading to deterioration and eventual failure of conventional reinforced or prestressed concrete structures. Carbon Fiber Reinforced Plastics (CFRP) are considered as an alternative to steel reinforcement due to its excellent corrosion resistance. This investigation was conducted to establish the feasibility of using CFRP cables as reinforcing elements in reinforced concrete columns. Besides investigating durability of CFRP cables in adverse environments (alkali and sea water) experimental and theoretical studies were carried out to study the behavior of CFRP reinforced concrete slender columns under combined axial load and bending moment. Exposure to air, sea water and alkali environments with alternating wet/dry cycles had no adverse effect on the strength of the CFRP cables. The CFRP reinforced concrete columns subjected to eccentric loads exhibited excellent ultimate load capacity. Feasibility of using CFRP cables in the reinforced concrete columns is assessed based on deflections, strains, curvatures, crack distributions, first crack loads and ultimate loads.
机译:在高度腐蚀的环境中,腐蚀是导致传统的钢筋混凝土或预应力混凝土结构劣化并最终导致破坏的主要因素。碳纤维增强塑料(CFRP)由于其出色的耐腐蚀性而被认为是钢增强的替代品。进行这项研究是为了确定使用CFRP电缆作为钢筋混凝土柱中的增强元件的可行性。除了研究CFRP电缆在不利环境(碱和海水)中的耐久性外,还进行了实验和理论研究,以研究CFRP钢筋混凝土细长柱在组合轴向载荷和弯矩作用下的性能。暴露于空气,海水和碱性环境中,交替进行干湿循环,对CFRP电缆的强度没有不利影响。承受偏心荷载的CFRP钢筋混凝土柱具有出色的极限荷载能力。根据挠度,应变,曲率,裂纹分布,初次裂纹载荷和极限载荷,评估在钢筋混凝土柱中使用CFRP电缆的可行性。

著录项

  • 作者

    Xia, Wei.;

  • 作者单位

    Florida Atlantic University.;

  • 授予单位 Florida Atlantic University.;
  • 学科 Engineering Civil.;Engineering Materials Science.;Engineering Marine and Ocean.
  • 学位 M.S.
  • 年度 1997
  • 页码 138 p.
  • 总页数 138
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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