嵌入超高分子量泡沫塑料混凝土中的浇注锚栓的实验研究

Jan Prchal, L. Vráblík
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引用次数: 0

摘要

本文介绍了对超高性能纤维增强混凝土(UHPFRC)预制锚固件在静态荷载下的行为进行的实验研究。首先,简要介绍了目前的技术水平和相关实验研究。论文的下一部分专门介绍了一项实验计划,旨在更详细地描述水泥复合材料 UHPFRC 中的锚固情况。共进行了 45 次拉拔试验。这些试验研究了 UHPFRC 基体中纤维体积数量(vf)、锚固件有效嵌入深度(hef)以及混凝土浇筑过程中锚固件在模具中位置的影响。最后,对结果进行了记录,并给出了混凝土锥体的破坏模式和形状、荷载-位移曲线和汇总表。论文最后讨论了结果和进一步解决问题的方向。
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Experimental Study of Cast in Anchors Embedded in UHPFRC
This paper describes an experimental investigation of the behaviour of anchors precast in Ultra High-Performance Fiber-Reinforced Concrete (UHPFRC) under static loading. Initially, the current state of the art and related experimental studies are briefly mentioned. The next part of the paper is devoted to an experimental program aimed at describing the anchorage in cement composite UHPFRC in more detail. A total of 45 pull-out tests were performed. The tests investigated the effect of the fiber quantity in volume in the UHPFRC matrix (vf), the effective embedment depth of the anchor (hef) and the position of the anchor in the mould during concreting. Finally, the results are documented, the failure mode and the shape of the concrete cone, load-displacement curves and summary tables are presented. The paper concludes with a discussion of the results and further directions for solving the problem.
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