...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Magazine of Concrete Research >Shear strength of reinforced recycled concrete beams without stirrups
【24h】

Shear strength of reinforced recycled concrete beams without stirrups

机译：无箍筋的钢筋再生混凝土梁的抗剪强度

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new method of mixture proportioning is used for investigating the shear performance of reinforced concrete (RC) beams made with coarse recycled concrete aggregate (RCA). In this method, RCA is treated as a two-phase material comprising mortar and natural aggregate therefore to proportion the concrete mixture with RCA, the relative amount and properties of each phase are considered separately. Using the new mix proportioning method, several beams were designed and tested to study the effect of a number of parameters including the shear span-to-depth ratio and beam size on the serviceability and strength of RCA concrete beams without shear reinforcement. For each beam its load-deflection curve, shear deformations, diagonal cracking load, crack pattern, ultimate shear strength and failure mode were determined. The results showed that the shear performance of RC beams made with RCA can be comparable, or even superior, to that of beams made entirely with natural aggregates at both serviceability and ultimate limit states, provided the proposed mixture proportioning method is used. Furthermore, the simplified methods of ACI and CSA standards as well as Eurocode 2 were found applicable to all reinforced RCA-concrete beams.
机译：一种新的混合配比方法用于研究由粗再生混凝土骨料（RCA）制成的钢筋混凝土（RC）梁的抗剪性能。在这种方法中，RCA被视为由砂浆和天然骨料组成的两相材料，因此，要将混凝土混合物与RCA配比，应分别考虑各相的相对含量和性能。使用新的混合配比方法，设计并测试了几根梁，以研究包括剪切跨度-深度比和梁尺寸在内的许多参数对无抗剪钢筋混凝土的RCA混凝土梁的使用寿命和强度的影响。对于每根梁，确定其荷载-挠度曲线，剪切变形，对角线开裂荷载，裂缝模式，极限抗剪强度和破坏模式。结果表明，使用所提出的混合比例法，RCA制成的RC梁的剪切性能可以与甚至完全由天然骨料制成的RC梁在可使用性和极限极限状态下相媲美，甚至更好。此外，发现ACI和CSA标准以及Eurocode 2的简化方法适用于所有增强的RCA混凝土梁。

著录项

  • 来源
    《Magazine of Concrete Research》 |2009年第7期|477-490|共14页
  • 作者

    G. Fathifazl; A. G. Razaqpur; O. Burkan Isgor; A. Abbas; B. Fournier; S. Foo;

  • 作者单位

    Adjeleian Allen Rubeli Consulting Structural Engineers, Ottawa,　ON, Canada;

    Department of Civil Engineering, McMaster University, Hamilton,　Ontario, Canada;

    Department of Civil and Environmental Engineering, Carleton Uni-　versity, Ottawa, Ontario, Canada;

    Amec Americas, Calgary, Alberta, Canada;

    Department of Geology and Engineering Geology, Universite Laval, Quebec, Quebec, Canada;

    Public Works and Government Services Canada, Gatineau, Que- bec, Canada;

  • 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

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