Dynamic Tests of the California Type 15Bridge Barrier Rail Series XXV.

摘要

The results of two full scale vehicle impact tests into the California Type 15Bridge Barrier Rail are reported. The Type 15bridge rail is a semi-rigid system consisting of two 3 1/2-in. square structural steel tubular rails mounted at 14and 27-in. above the pavement on 6WF 25steel posts bolted to the edge of the concrete bridge deck. Tests were conducted at impact velocities of approximately 60mph and approach angles of approximately 15degrees. The test results indicated that this bridge rail design will retain and redirect a 4500lb. passenger vehicle impacting at a 60mph velocity and an angle of 15degrees with tolerable deceleration rates,moderate vehicle damage;and if the barrier post spacing is 8.0feet or less,minimal barrier damage. (Modified author abstract)