首页> 外文会议>Annual conference of the Canadian Society for Civil Engineering >Effect of Pouring Techniques on the Structural Performance of Self-Consolidating Concrete Beams
【24h】

Effect of Pouring Techniques on the Structural Performance of Self-Consolidating Concrete Beams

机译:浇筑工艺对自密实混凝土梁结构性能的影响

获取原文

摘要

An experimental investigation was conducted to study the effect of pouring techniques on the structural performance of self-consolidating concrete (SCC) beams. The shear strength and cracking behavior of large-scale concrete beams made with various SCC types were investigated under different pouring techniques. Thirteen SCC and normal concrete (NC) beams without shear reinforcement were tested to shear failure under simply supported four-point loading conditions. SCC beams were poured in two different techniques: the first technique was to pour the concrete from one side of the formwork only, while the second technique was to move the pouring point along the full beam length. The variables were: the concrete type, length and depth of beams, and the viscosity and yield stress of SCC mixture. The results obtained from this investigation proved that different pouring techniques, viscosity and/or yield stress of SCC mixtures did not have a significant effect on the structural performance of SCC beams in terms of shear strength and cracking behavior. The results also showed that SCC beams exhibited slightly higher average shear strength compared to their NC counterparts.
机译:进行了一项实验研究,以研究浇筑技术对自密实混凝土(SCC)梁的结构性能的影响。研究了在不同浇注技术下,各种SCC类型的大型混凝土梁的抗剪强度和抗裂性能。在简单支撑的四点荷载条件下,测试了13条没有抗剪加固的SCC和普通混凝土(NC)梁的抗剪破坏。 SCC梁是通过两种不同的技术浇筑而成的:第一种技术是仅从模板的一侧浇筑混凝土,而第二种技术是沿整个梁的长度移动浇筑点。变量为:混凝土类型,梁的长度和深度,以及SCC混合物的粘度和屈服应力。从这项研究获得的结果证明,不同的浇筑技术,SCC混合物的粘度和/或屈服应力在剪切强度和开裂行为方面对SCC梁的结构性能没有显着影响。结果还显示,与NC同类梁相比,SCC梁的平均抗剪强度略高。

著录项

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