MASH Testing 3-21 of Free-Standing-to-Anchored F-Shape PCB Transition System with Vertical Anchors on Asphalt

Report Number(s): TRNo. 622421

Description: The installation was 157 feet long, comprised of thirteen 12-ft. long F-shape “pin and-loop” reinforced concrete barrier segments. The barrier segments were 9-1/2 inches wide at top, 24 inches wide at bottom, and 32 inches tall, and connected to each other with 1-inch diameter connection pins. Barrier segments 1-8 were placed on compacted 2-inchthick asphalt that was constructed over 6-inch-thick crushed limestone base. Barrier segments 9-13 were placed on compacted 4-inch-thick asphalt that was constructed over 12-inch-thick crushed limestone base. All barrier segments were fabricated with six slots for hosting anchor pins, three on each side of the barrier. Barrier segments 1-8 were free-standing, i.e., no anchor pins were installed to restrict movement of these barrier segments. Barrier segment 9 was secured to the asphalt with two anchor pins. These pins were installed in the two downstream end slots, one on each side of the barrier segment. Barrier segments 10-13 were secured to the asphalt with four anchor pins each. Two of these anchor pins were in the upstream end and two in the downstream end slots of each barrier segment. No pins were installed in the center slots of any of the barrier segments. The anchor pins were 1-1/2 inches in diameter and were fabricated with ASTM A36 steel. The pins were 36 inches long, inclusive of a 2-inch tip. A 3-inch x 3-inch x ½-inch ASTM A36 plate washer was welded to the top of the anchor pins. To facilitate anchor pin installation, 1-3/4-inch pilot holes were drilled through the asphalt and the underlying soil prior to driving in the pins

Test Level: 3

Barrier Type: F-Shape

MASH Test Number: 3-21

Proprietary/Non-proprietary: Non-proprietary

Pass/Fail: Pass

Evaluation: Full-Scale Crash Testing

Sponsor: California Department of Transportation