MASH Test 3-21 on TL-3 Thrie Beam Transition Without Curb
Author | : Dusty R. Arrington |
Publisher | : |
Total Pages | : 65 |
Release | : 2013 |
ISBN-10 | : OCLC:859685029 |
ISBN-13 | : |
Rating | : 4/5 (29 Downloads) |
Book excerpt: 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.