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Experimental Evaluation of Influence of Member Thickness, Anchor-Head Size, and Orthogonal Surface Reinforcement on the Tensile Capacity of Headed Anchors in Uncracked Concrete
| 题名： | Experimental Evaluation of Influence of Member Thickness, Anchor-Head Size, and Orthogonal Surface Reinforcement on the Tensile Capacity of Headed Anchors in Uncracked Concrete |
| 其他题名： | ACI(American Concrete Institute).(2006)."Code requirements for nuclear safety related concrete structures."ACI 349-06,Farmington Hills,MI. |
| 正文语种： | 英文 |
| 作者： | Rasoul Nilforoush |
| 关键词： | Headed anchor;Anchor bolt;Concrete cone breakout;Concrete splitting;Member thickness;Anchor head;Surface reinforcement |
| 摘要： | Cast-in-place headed anchors with different head sizes embedded in plain and reinforced concrete members of various thicknesses were subjected to pullout tests. The influence of member thickness, anchor-head size, and orthogonal surface reinforcement on the tensile capacity and performance of anchor bolts was evaluated. The member thickness varied from 1.5 to 3.0 times the anchor embedment depth, and headed anchors with small, medium, and large heads were tested. The experimental results of the study showed that increasing member thickness and/or use of orthogonal surface reinforcement lead to increased anchorage capacity and ductility, whereas the anchorage stiffness decreases slightly. In contrast to anchorage ductility, tensile breakout resistance and anchorage stiffness increased significantly with increasing size of the anchor head. The experimental results corresponded closely to the results of a previous numerical study that suggested a modified model incorporating several modification factors for improving the predictive capability of the concrete capacity (CC) method. In the present study, these factors yielded improved prediction of the tensile breakout capacity of the tested headed anchors. |
| 出版年： | 2018 |
| 论文唯一标识： | P-26Y2018V144N04005 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/(ASCE)ST.1943-541X.0001976 |
| 期刊名称： | Journal of Structural Engineering |
| 拼音刊名(出版物代码)： | P-26 |
| 卷： | 144 |
| 期： | 04 |
| 页码： | 44-57 |
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