A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Dynamic Tests of a Prestressed Concrete Median Barrier Type 50. Series XXVI
The results of five vehicle impact tests into a Prestressed Concrete Barrier Type 50 are reported. This median barrier is 32 inches high with a profile similar to that developed by the State of New Jersey. The test barrier was slipformed onto existing asphalt concrete pavement and contained four prestressing strands encased in plastic sheaths. Because the barrier possessed no footing, the four strands were posttensioned to provide adequate structural continuity along the longitudinal axis. The nominal vehicle weight and impact velocity for the five tests were 4900 pounds and 65 mph, respectively. The angles of impact were 9.5 and 25 degrees. The level of prestress in the concrete was also varied during the test series because static test data from concrete strain gages indicated a substantial loss of effective prestress force due to friction and/or bond with the pavement.
Dynamic Tests of a Prestressed Concrete Median Barrier Type 50. Series XXVI
The results of five vehicle impact tests into a Prestressed Concrete Barrier Type 50 are reported. This median barrier is 32 inches high with a profile similar to that developed by the State of New Jersey. The test barrier was slipformed onto existing asphalt concrete pavement and contained four prestressing strands encased in plastic sheaths. Because the barrier possessed no footing, the four strands were posttensioned to provide adequate structural continuity along the longitudinal axis. The nominal vehicle weight and impact velocity for the five tests were 4900 pounds and 65 mph, respectively. The angles of impact were 9.5 and 25 degrees. The level of prestress in the concrete was also varied during the test series because static test data from concrete strain gages indicated a substantial loss of effective prestress force due to friction and/or bond with the pavement.
Dynamic Tests of a Prestressed Concrete Median Barrier Type 50. Series XXVI
E. F. Nordlin (author) / W. R. Juergens (author) / J. R. Stoker (author) / R. L. Stoughton (author) / R. N. Doty (author)
1973
56 pages
Report
No indication
English
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