波形齿体系张拉并锚固CFRP片材的预应力损失

陈小英; 李唐宁

doi:10.11835/j.issn.1674-4764.2009.03.005

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波形齿体系张拉并锚固CFRP片材的预应力损失

更新时间：2023-11-28

- 波形齿体系张拉并锚固CFRP片材的预应力损失
- Experimental Analysis of Prestress Loss on Tensioning and Anchoring CFRP Sheet with Waveshapedgear
- 土木与环境工程学报（中英文） 2009年31卷第3期页码：18-24
- 作者机构：
  
  1. 重庆科技学院建筑工程学院,重庆,401331
  2. 重庆大学土木工程学院,重庆,400045
- 作者简介：
- 基金信息：
  
  重庆市自然科学基金(CSTC2008BB6181);重庆大学研究生科技创新基金 (200603Y1B0100153)
- DOI：10.11835/j.issn.1674-4764.2009.03.005
  中图分类号：
- 纸质出版：2009
- 稿件说明：
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陈小英, 李唐宁. 波形齿体系张拉并锚固CFRP片材的预应力损失[J]. 土木与环境工程学报（中英文）, 2009,31(3):18-24.

CHEN Xiaoying, LI Tangning. Experimental Analysis of Prestress Loss on Tensioning and Anchoring CFRP Sheet with Waveshapedgear[J]. Journal of Civil and Environmental Engineering, 2009, 31(3): 18-24.
陈小英, 李唐宁. 波形齿体系张拉并锚固CFRP片材的预应力损失[J]. 土木与环境工程学报（中英文）, 2009,31(3):18-24. DOI： 10.11835/j.issn.1674-4764.2009.03.005.

CHEN Xiaoying, LI Tangning. Experimental Analysis of Prestress Loss on Tensioning and Anchoring CFRP Sheet with Waveshapedgear[J]. Journal of Civil and Environmental Engineering, 2009, 31(3): 18-24. DOI： 10.11835/j.issn.1674-4764.2009.03.005.

摘要

根据波形齿横向张拉并锚固碳纤维（以下简称CFRP）片材体系的加固施工工艺，对CFRP片材及被加固构件的材料特性造成的损失（松弛），温度变化引起的损失以及波形齿配套螺杆与被加固构件间的作用引起的损失进行了理论分析。并通过两类试验共8根构件（钢梁台座的4根构件及混凝土T梁加固试验的4根构件）中张拉后的CFRP片材的预应力(变)损失进行试验研究，提出了波形齿横向张拉并锚固CFRP片材体系中的CFRP片材设计时预应力总损失的建议值。

Abstract

Based on strengthened construction technology of lateral tensioning and anchoring carbonfibre reinforced plastic (CFRP) sheet with waveshapedgear

theoretic analysis is made for the losses by material relaxation of CFRP sheet and strengthened member

the losses by temperature changing and the losses by action between screw bolt in waveshapedteeth grip and strengthened member. And prestress loss tests of CFRP after lateral tension are employed for eight members in two types of experiments (four for steel beam pedestal and four for concrete Tbeams strengthening test). Based on test and analysis

a design value of total prestress loss is proposed for CFRP sheet lateral tensioned and anchored by waveshapedgear.

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