Scholarlink

<p>To develop more environmentally friendly shield tunnel segment (STS) structures, Basalt fiber reinforced plastics (BFRP) rebars and short BFRP fibers (SBFs) reinforced STS structures were investigated through experimental and theoretical approaches. Three point bending experiments with two ends simply-supported reveal that the BFRP rebars reinforced STS (BRRS) samples with SBFs content of 1.5% have excellent advantages in ultimate load and ductile deformation, with peak load improved from 2564 kN of traditional standard steel rebars reinforced STS (SRRS) to 3336 kN. Without reinforcing by SBFs, the BRRS samples still have comparable behaviors with the SRRS samples. Multi-failure criteria were proposed to predict the bearing capacity. The flexural bending failure is dominant. Based on the tensile strain of BFRP rebars and the compressive strength of SBFs reinforced concrete (RC), the ultimate load of the BRRS samples were predicted with acceptable errors.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Short BFRP fibers and BFRP rebars reinforcements to tailor mechanical performances of shield tunnel segments and failure analyses

  • 期刊论文

  • 发表日期：

    2026年2月9日

查看全文
  • Min Hou,
  • Hengyi Zhu,
  • Hualin Fan

摘要

To develop more environmentally friendly shield tunnel segment (STS) structures, Basalt fiber reinforced plastics (BFRP) rebars and short BFRP fibers (SBFs) reinforced STS structures were investigated through experimental and theoretical approaches. Three point bending experiments with two ends simply-supported reveal that the BFRP rebars reinforced STS (BRRS) samples with SBFs content of 1.5% have excellent advantages in ultimate load and ductile deformation, with peak load improved from 2564 kN of traditional standard steel rebars reinforced STS (SRRS) to 3336 kN. Without reinforcing by SBFs, the BRRS samples still have comparable behaviors with the SRRS samples. Multi-failure criteria were proposed to predict the bearing capacity. The flexural bending failure is dominant. Based on the tensile strain of BFRP rebars and the compressive strength of SBFs reinforced concrete (RC), the ultimate load of the BRRS samples were predicted with acceptable errors.