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Improved Design Limit for Antiram Bollard Systems Subjected to Truck Impact
| 题名： | Improved Design Limit for Antiram Bollard Systems Subjected to Truck Impact |
| 其他题名： | Adobe Photoshop 13.0[Computer software].Adobe Systems,San Francisco. |
| 正文语种： | 英文 |
| 作者： | Bo Hu |
| 关键词： | Antiram bollard system;Truck penetration;Design limit;Bollard deflection;Foundation rotation |
| 摘要： | Antiram bollard systems (ABS) can effectively prevent vehicle bombs from approaching protected areas and thus reduce the damage from blasts and debris. This paper presents an assessment of the current design limits for determining whether the designed ABS can prevent truck penetration successfully according to SD-STD-02.01, Revision A. Four available crash tests and 69 numerical experiments were assembled for the evaluation. Assessment results showed that the current design limits for either residual angle of inclination of bollard αr or residual height of bollard Hr present poor performances. Numerical investigations showed the failed ABS were penetrated by trucks in two failure modes, and Failure Modes I and II can be determined by αr and Hr, respectively. On this basis, an improved design limit is proposed in terms of both αr and Hr. In addition, an analytical model for predicting αr and Hr is developed. Two plastic-hinge patterns of ABS were considered in this model. Comparisons between the predictions and experimental results from crash tests and numerical simulations indicate that the improved design limit combined with the developed analytical model predicts the performances of all the ABS accurately and can be used for the structural design of ABS. |
| 出版年： | 2017 |
| 论文唯一标识： | P-72Y2017V143N11008 |
| 英文栏目名称： | TECHNICAL PAPERS |
| doi： | 10.1061/JTEPBS.0000086 |
| 期刊名称： | Journal of Transportation Engineering |
| 拼音刊名(出版物代码)： | P-72 |
| 卷： | 143 |
| 期： | 11 |
| 页码： | 51-64 |
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