Behavior and Early-Age Performance of Continuously Reinforced Concrete Bus Pad
Sang Cheol Park, Kang In Lee, Soon Ho Baek, Sang Jin Kim, Seong-Min Kim
TL;DR
This study tested a new concrete bus pad design and found it performs well under traffic and environmental conditions.
Contribution
A new method for converting cracked concrete strain measurements to uncracked strain is proposed and validated.
Findings
CRC bus pad showed no significant pavement performance issues under environmental and vehicle loads.
Strain and displacement measurements indicated the CRC bus pad is suitable for use in bus-only lanes.
The proposed strain conversion method effectively analyzed cracked concrete slab behavior.
Abstract
The behavior of the cast-in-place continuously reinforced concrete (CRC) bus pad applied to bus stop pavement in a central bus-only lane was experimentally analyzed under environmental and moving vehicle loads, and the early-age performance of the CRC bus pad was evaluated using experimental data and finite element analysis results. Using various measurement sensors, the concrete slab strain, longitudinal steel bar strains, horizontal and vertical displacements, and crack behavior of the CRC bus pad due to environmental loads were measured, and the dynamic responses of the concrete slab and steel bars due to moving vehicle loads were also measured. Additionally, a method for converting strain gauge measurements of a cracked concrete slab to the strain of an uncracked concrete slab was also proposed. Under environmental loads, the range of stresses acting on the steel bars and the bond…
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Taxonomy
TopicsInfrastructure Maintenance and Monitoring · Structural Behavior of Reinforced Concrete · Innovative concrete reinforcement materials