NCHRP Report 350 Test 3-11 of the Texas Type T6 Bridge Rail
Author(s):
C.E. Buth, R.P. Bligh, W.L. Menges
Publication Date:
July 1998
Abstract:
The Texas Type T6 Bridge Rail was developed under a previous TxDOT study with TTI. The Texas Type T6 was crash tested and evaluated under NCHRP Report 230 guidelines. The two tests performed included one test with a 2041-kg passenger vehicle traveling at 99.0 km/h and 27.5 degrees, and the second was with a 1035-kg passenger vehicle traveling at 93.3 km/h and 14.0 degrees. The bridge rail performed acceptably during these two tests. However, with the adoption of NCHRP Report 350, the bridge rail needed to be reevaluated using the 2000-kg pickup truck. This report presents the details and results of the full-scale crash test on the Texas Type T6 Bridge Rail with the 2000-kg pickup truck traveling at 100 km/h and 25 degrees to evaluate performance at test level three.According to the specifications set for NCHRP Report 350 test designation 3-11, the Texas Type T6 did not perform satisfactorily. Although the bridge rail contained and redirected the vehicle, some of the anchor bolts pulled out allowing posts to be displaced from the bridge deck. The vehicle rolled onto its left side upon exiting the installation and intruded into adjacent traffic lanes. Exit angle at loss of contact was significantly greater than the 60 percent allowed.
Report Number:
0-1804-4
Electronic Link(s):
Document/Product
http://tti.tamu.edu/documents/1804-4.pdf
Publication/Product Request
TTI reports and products are available for download at no charge. If an electronic version is not available and no instructions on how to obtain it are given, contact the TTI Library.