Mash Tl 3 Evaluation Of 2019 Mash 2 Tube Bridge Rail Thrie Beam Transition
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| Author | : William F. Williams (Transportation engineer) |
| Publisher | : |
| Total Pages | : 109 |
| Release | : 2020 |
| Genre | : Bridge railings |
| ISBN | : |
The purpose of the tests reported herein was to assess the performance of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition according to the safety-performance evaluation guidelines included in AASHTO MASH. The crash tests were performed in accordance with MASH TL-3, which involves two full-scale crash tests (MASH Tests 3-20 and 3-21). However, MASH states that when there are transitions between two barrier types with different stiffness, one from a more flexible barrier and the other to a more rigid barrier, a full-scale crash test is recommended for both types. Therefore, MASH Test 3-21 was performed at the transition from the thrie beam rail to bridge rail, and at the transition from the W-beam rail to thrie beam rail. This report provides details of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition, detailed documentation of the crash tests and results, and an assessment of the performance of the 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition for MASH TL-3 transition evaluation criteria. The 2019 MASH 2-Tube Bridge Rail Thrie Beam Transition performed acceptably for MASH TL-3 transitions.
| Author | : Dusty R. Arrington |
| Publisher | : |
| Total Pages | : 65 |
| Release | : 2013 |
| Genre | : Roads |
| ISBN | : |
This project evaluated the impact performance of a modified Texas Department of Transportation (TxDOT) thrie beam transition to rigid concrete barrier without a curb element below the transition rail. In a previous test described in TxDOT Research Report 0-4564, a thrie beam transition without curb failed to meet National Cooperative Highway Research Program (NCHRP) Report 350 performance criteria. However, it could not be discerned whether the vehicle instability observed in that test was attributable to the missing curb or the rotation of the thrie beam transition rail into the sloped face of the concrete safety shape rail at the bridge end connection point.
| Author | : William F. Williams |
| Publisher | : |
| Total Pages | : 91 |
| Release | : 2013 |
| Genre | : Bridge railings |
| ISBN | : |
| Author | : William F. Williams (Transportation engineer) |
| Publisher | : |
| Total Pages | : 153 |
| Release | : 2016 |
| Genre | : Automobiles |
| ISBN | : |
The Texas Type T631 bridge rail was developed as a low-cost, flexible bridge rail system for TL-2 applications. Many of the features used for the system tested at MxRSF for TL-3 were incorporated into the design developed for this project for MASH TL-2 application. The TxDOT Type T631 bridge rail was designed, developed, and evaluated under MASH TL-2. The objective of this research was to evaluate the impact performance of the new TxDOT Type T631 bridge rail to MASH TL-3. The TxDOT Type T631 bridge rail was intended to serve as a low-cost replacement for the TxDOT Type T6 bridge rail for MASH TL-2 applications. The crash testing was performed in accordance with the requirements of MASH TL-3. The TxDOT T631 Bridge Rail performed acceptably for MASH TL-3.
| Author | : Dean C. Alberson |
| Publisher | : |
| Total Pages | : 69 |
| Release | : 2003 |
| Genre | : Bridge railings |
| ISBN | : |
| Author | : Dean C. Alberson |
| Publisher | : |
| Total Pages | : 350 |
| Release | : 2005 |
| Genre | : Roads |
| ISBN | : |
The objective of this study was to crash test and evaluate these transitions according to requirements of NCHRP Report 350. The scope of this study is as follows: "This study will crash test a series of thrie beam transitions from guardrails to bridge rails in accordance with the appropriate test levels of National Cooperative Highway Research Program (NCHRP) Report 350. These transition designs were selected by the State representatives for State Planning and Research (SP&R) Pooled Fund Study No. 2-134, "Testing New Bridge Rail and Transition Designs." The following transitions were tested under this project: Ohio Nonsymmetrical Type 2 W-beam to Thrie Beam Transition.
| Author | : Doran L. Glauz |
| Publisher | : |
| Total Pages | : 32 |
| Release | : 1991 |
| Genre | : |
| ISBN | : |
| Author | : Roger P. Bligh |
| Publisher | : |
| Total Pages | : 77 |
| Release | : 2011 |
| Genre | : Bridge railings |
| ISBN | : |
| Author | : |
| Publisher | : AASHTO |
| Total Pages | : 142 |
| Release | : 2004 |
| Genre | : CD-ROMS. |
| ISBN | : 1560512717 |
| Author | : American Association of State Highway and Transportation Officials. Task Force for Roadside Safety |
| Publisher | : |
| Total Pages | : 560 |
| Release | : 1989 |
| Genre | : Roads |
| ISBN | : |
