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Approach Guardrail Transition for Concrete Safety Shape Barriers
| 题名： | Approach Guardrail Transition for Concrete Safety Shape Barriers |
| 作者： | Faller-RK; Reid-JD; Rohde-JR |
| 关键词： | Guardrails; Median barriers; Barriers (Roads); Transition zone (Fluid mechanics); Thrie beams; Posts; Steel; Spacing; Concrete safety shapes; Barriers; Transition zones; Steel posts; Compliance; Nchrp report 350 |
| 摘要： | An approach guardrail transition for use with concrete safety shape barriers was developed and crash-tested. The transition was constructed with two nested thrie-beam rails, measuring 2.66 mm thick, and supported by nine W150 x 13.5 steel posts. Post spacings consisted of one at 292 mm, five at 476 mm, and three at 952 mm. Structural tube spacer blockouts were used in the transition system. The system successfully met the Test Level 3 requirements specified in National Cooperative Highway Research Program (NCHRP) Report 350, "Recommended Procedures for the Safety Performance Evaluation of Highway Features" (1993). |
| 总页数： | Transportation Research Record.1998. pp 111-121 (FIGS: 7 Figs. PHOT: Phots. REFS: 25 Ref.) |
| 报告类型： | 科技报告 |
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