Development Length of High-Strength Steel Rebar in Ultrahigh Performance Concrete
Development Length of High-Strength Steel Rebar in Ultrahigh Performance Concrete
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DOI：
10.1061/(asce)mt.1943-5533.0000571
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发表时间：
2013-08
影响因子：
3.2
通讯作者：
M. Saleem;A. Mirmiran;J. Xia;K. Mackie
中科院分区：
文献类型：
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作者：
M. Saleem;A. Mirmiran;J. Xia;K. Mackie
超高性能混凝土(UHPC)正日益进入建筑领域。因此，超高性能混凝土的表征在研究领域受到了迫切需要的关注。超高性能混凝土的一种有效应用是与高强度钢(HSS)在浅梁或板中配筋。然而，超高性能混凝土中HSS钢筋的粘结和发展特性尚未得到研究。本文介绍了超高性能混凝土中HSS筋的抗拔和抗弯试验结果。这项工作是一个更大的项目的一部分，该项目旨在为可移动桥梁开发一种新型的轻质UHPC-HSS桥面系统。由于桥面设计采用10号和22号钢筋作为主筋，试验中仅采用这两种钢筋尺寸。首先，用钢筋直径的8倍、10倍和12倍三种不同的埋入长度进行拔出试验。然后，根据拔出试件的试验结果，对梁试件的埋设长度进行了试验。
AbstractUltrahigh performance concrete (UHPC) is increasingly making its way into the construction field. Characterization of UHPC has therefore received much-needed attention in the research arena. One effective application of UHPC is in combination with high-strength steel (HSS) reinforcing rebar in shallow beams or slabs. However, bond and development characteristics of HSS rebar in UHPC have not yet been investigated. This paper presents the experimental results of the pullout and flexure tests conducted with HSS rebar in UHPC. This work was a part of a larger project to develop a new light-weight UHPC-HSS bridge deck system for a moveable bridge. Because the bridge deck was designed with #10 and #22 rebar as the main reinforcement, only these two rebar sizes were used in the experiments. First, pullout specimens were tested with three different embedment lengths of 8, 10, and 12 times the rebar diameter. Then, from the results of pullout specimens, beam specimens were tested with embedment lengths of...