MASH Testing of Free-Standing and Pinned Temporary Concrete Barrier (607911)

Problem Statement No. 2016-LA-104


Report for Test on Free-Standing Concrete Barrier

Report for Test on Concrete Barrier Pinned to 8-inch Concrete Deck

TTI Research Supervisor:
Nauman M. Sheikh, P.E.
Associate Research Engineer
Texas A&M Transportation Institute
TAMU 3135
College Station, Texas 77843-3135
(979) 845-8955
[email protected]
Pooled Fund Technical Representative:
Kurt Brauner, P.E.
Bridge Engineer Manager
Louisiana Transportation Center
1201 Capitol Road, Suite 605G
Baton Rouge, LA 70802
(225) 379-1933
[email protected]

Abstract

The objective of this research was to test the free-standing and pinned down temporary concrete barrier, used in previously developed restrained TCB design, in accordance with the MASH testing criteria. MASH tests 3-10 and 3-11 were to be performed on the free-standing TCB. Due to budgetary constraints, only test 3-11 was performed on the restrained TCB. The restrained TCB is to be pinned to concrete pavement, as in the previously performed NCHRP Report 350 testing.

The researchers performed the following three crash tests of the F-shape TCB used in the Pooled Fund group’s anchored TCB barrier design.

  1. MASH Test 3-10 of free-standing TCB. This test involves the MASH 1100C small passenger car impacting the barrier at 62 mi/h and 25 degrees.
  2. MASH Test 3-11 of free-standing TCB. This test involves the MASH 2270P pickup truck impacting the barrier at 62 mi/h and 25 degrees.
  3. MASH Test 3-11 of pinned-down TCB. This test involves the MASH 2270P pickup truck impacting the barrier at 62 mi/h and 25 degrees. As in the previously run test under NCHRP Report 350, this test will be performed with the barrier pinned to an existing concrete pavement that is nominally 6 inches thick. The barrier will be installed at the edge of a concrete apron to simulate installation at the edge of a bridge deck.

 


2017-06-26