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Solution for Aircraft-Pavement Interaction Problem on a Pre-Stressed Concrete…
Second International Conference On Road & Airfield Pavement Technology, Volume 2
PTI Evaluation Of The Condition Of A Post-Tensioned Concrete Parking Structu…
In the summer of 1989, a parking structure adjoining an office building in the Inner Harbor area of downtown Baltimore, Maryland, was demolished to make room for an expansion to the existing office tower. This post-tensioned concrete parking structure was built in 1974, and thus, had been in service for 15 years prior to demolition. This report summarizes the observations and evaluation of theg…
Data Analysis On Residual Stresses Measured In Concrete Beams
A core-ring strain gage (CRSG) test procedure has been devised for measuring the
residual stress in a concrete pavement. Initially cantilevered concrete beams were
selected for instrumentation to determine if beam stresses could be released and measured by drilling a core-ring. The known load induced stresses for a cantilever beam, before a core-ring is drilled, have a theoretical solut…
Direct Measurement of Residual Stress in Airport Concrete Pavements
The current Federal Aviation Administration design procedures for airport concrete pavements do not directly consider top-down cracking. However, this distress has been repeatedly observed in full-scale tests conducted at FAA’s National Airport Pavement Test Facility (NAPTF) and AIRBUS in Europe. Generally, the maximum load stress related strain near the slab bottom is mostly higher than the …
