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MASH TL-4 Testing and Evaluation of Free-Standing Single Slope Concrete Barrier with Cross-Bolt Connection.
| 题名： | MASH TL-4 Testing and Evaluation of Free-Standing Single Slope Concrete Barrier with Cross-Bolt Connection. |
| 作者： | Sheikh, N. M.; Bligh, R. P.; Menges, W. L.; Kuhn, D. L.; Schroeder, G. E. |
| 关键词： | Concrete barriers, Portable concrete barriers (PCB), Roadside safety, Median barriers, Temporary concrete barriers (TCB), Single slope barrier, Crash testing |
| 摘要： | The purpose of the testing reported herein was to assess the performance of the free-standing single slope concrete barrier (SSCB) with cross-bolt connections according to the safety-performance evaluation guidelines included in American Association of State Highway and Transportation Officials’ Manual for Assessing Safety Hardware (MASH) for Test Level Four (TL-4). The crash test performed was in accordance with MASH Test 4-12 criteria, which involves a 10000S single unit truck impacting the barrier at a target impact speed and angle of 56 mi/h and 15 degrees, respectively. The free-standing SSCB with cross-bolt connection successfully contained and redirected the single unit truck. The barrier performed acceptably for MASH Test 4-12. The maximum dynamic and permanent barrier deflections were each 33.0 inches. In addition to the TL-4 crash test, researchers performed a detailed finite element analysis to determine the expected lateral deflection of the barrier under MASH Test 4-11 conditions, which involve impacting the barrier with a 2270P pickup truck vehicle with a target impact speed and angle of 62 mi/h and 25 degrees, respectively. The maximum lateral barrier deflection for the pickup truck impact was estimated to be in the range of 12.5 inches to 16.8 inches. |
| 报告类型： | 科技报告 |
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