Performance Evaluation Of The Modified G41s Guardrail Update To Nchrp 350 Test No 3 11 With 28 Cg Height 2214wb 2
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Performance Evaluation of the Midwest Guardrail System - Update to NCHRP 350 Test No. 3-11 with 28" C.G. Height (2214MG-2)
Author | : Karla A. Polivka |
Publisher | : |
Total Pages | : 69 |
Release | : 2006 |
Genre | : Bridge railings |
ISBN | : |
Performance Evaluation of the Midwest Guardrail System - Update to NCHRP 350 Test No. 3-11 (2214MG-1)
Author | : Karla A. Polivka |
Publisher | : |
Total Pages | : 75 |
Release | : 2006 |
Genre | : Bridge railings |
ISBN | : |
Performance Evaluation of the Midwest Guardrail System - Update to NCHRP 350 Test No. 3-10 (2214MG-3)
Author | : Karla A. Polivka |
Publisher | : |
Total Pages | : 70 |
Release | : 2006 |
Genre | : Bridge railings |
ISBN | : |
Evaluation and Design of ODOT's Type 5 Guardrail with Tubular Backup
Author | : Chuck A. Plaxico |
Publisher | : |
Total Pages | : 174 |
Release | : 2006 |
Genre | : Roads |
ISBN | : |
The purpose of this project was to assess the performance of both the ODOT GR-2.2 guardrail and the ODOT GR-3.4 transition system under NCHRP Report 350 test level 3 (TL-3) conditions, propose any modifications that would improve their crashworthiness and, ultimately ensure that the final designs qualify for use on the National Highway System (NHS) as TL-3 systems. Finite element analyses of the guardrail and transition system were performed using the LS-DYNA finite element software to simulate NCHRP Report 350 Test 3-10 and Test 3-11 impact scenarios. The analysis results indicated that the original ODOT GR-2.2 guardrail would successfully meet all NCHRP Report 350 test level 3 safety criteria. The analyses also indicated that the performance of the system could be significantly improved with simple modifications to the guardrail. The integrated system of the Nested Type 5 Guardrail with Tubular Backup and the ODOT GR-3.4 transition was considered the most practical and feasible design improvement and was therefore recommended as a final design.