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首页> 外文期刊>Composite Structures >FRP strengthening of web panels of steel plate girders against shear buckling Part-Ⅰ: Static series of tests
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FRP strengthening of web panels of steel plate girders against shear buckling Part-Ⅰ: Static series of tests

机译：FRP加固钢板梁腹板抵抗剪切屈曲Ⅰ部分：静态试验。

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摘要

The result of an experimental programme investigating a novel technique to strengthen web plates against breathing fatigue is presented in this paper; the programme was divided into five phases, including: (1) the development of a novel preformed corrugated FRP panel for strengthening thin-walled steel plate girder webs against buckling, (2) selecting the adequate adhesive and epoxy using double-lap shear and tension specimens, (3) producing the FRP panel, and (4, 5) testing its performance in two main experimental series; the initial (static) series and the final (cyclic) series. Only the initial series which involved tests on 13 steel plates strengthened with the proposed preformed corrugated FRP panel and subjected to in-plane shear will be reported in this paper. This series investigated the performance of different forms of strengthening under static load, in preparation for a subsequent series of cyclic tests to investigate their fatigue performance. Test results showed the efficiency of the technique at increasing the stiffness of the strengthened specimens in comparison to the unstrengthened ones and reducing the critical stresses which will serve as a precursor for the anticipated increase in the fatigue life of the girders.
机译：本文介绍了一项实验程序的结果，该程序研究了一种用于增强腹板以抵抗呼吸疲劳的新技术。该计划分为五个阶段，包括：（1）开发一种新型的预制波纹FRP面板，用于加固薄壁钢板梁腹板以防止屈曲；（2）使用双搭接剪切和拉伸选择适当的粘合剂和环氧树脂标本，（3）生产FRP面板，（4，5）在两个主要实验系列中测试其性能；初始（静态）系列和最终（循环）系列。本文只报道涉及在13个钢板上进行试验的初始系列，这些钢板用建议的预成型波纹FRP板加固并受到面内剪切。该系列研究了静态载荷下不同形式的增强性能，为后续的一系列循环测试做准备，以研究其疲劳性能。测试结果表明，与未加强的试样相比，该技术在提高加强试样的刚度和减小临界应力方面的效率高，这将成为预期的大梁疲劳寿命增加的先兆。

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  • 来源
    《Composite Structures》 |2018年第12期|722-738|共17页
  • 作者

    Al-Azzawi Zaid; Stratford Tim; Rotter Michael; Bisby Luke;

  • 作者单位

    Univ Anbar, Coll Engn, POB 55, Baghdad 55431, Anbar, Iraq;

    Univ Edinburgh, Sch Engn, AGB Bldg,Kings Bldg,Mayfield Rd, Edinburgh EH9 3JL, Midlothian, Scotland;

    Univ Edinburgh, Sch Engn, AGB Bldg,Kings Bldg,Mayfield Rd, Edinburgh EH9 3JL, Midlothian, Scotland;

    Univ Edinburgh, Sch Engn, AGB Bldg,Kings Bldg,Mayfield Rd, Edinburgh EH9 3JL, Midlothian, Scotland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Plate girders; Steel plates; FRP; Buckling; Shear;

    机译：板梁;钢板;玻璃钢;屈曲;剪切;

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