Shear Behavior of Small Span Single and Double Precast Reinforced Concrete Box Culverts
Publication: Pipelines 2006: Service to the Owner
Abstract
This study presents two full-scale test results of shear behavior of 1.22 m x 1.22 m x 1.22 m (4 ft x 4 ft x 4 ft) precast reinforced concrete box culverts. One single and one double box jointed together without grouting were tested. A monotonically increasing load was applied through a 254 mm x 508 mm (10 in x 20 in) load plate in order to simulate the HS20 truckload per AASHTO LRFD bridge design specifications. Instrumentation included strain gauges, high-resolution laser deflection sensor, and automated data acquisition. Laser sensor data and dial gauge readings were recorded to measure the deflection profile of the box culvert. Strain gauges were placed on the steel reinforcement to measure axial strain at the locations of maximum positive and negative bending moments. The test results include reporting the loads at which each crack initiated and propagated. The displacement profile of the top slab from the laser instrumentation output is also reported.
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Copyright
© 2006 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
ASCE Technical Topics:
- Concrete
- Continuum mechanics
- Culverts
- Design (by type)
- Displacement (mechanics)
- Engineering fundamentals
- Engineering materials (by type)
- Engineering mechanics
- Equipment and machinery
- Infrastructure
- Laboratory tests
- Lasers
- Load factors
- Material mechanics
- Materials engineering
- Pipeline systems
- Pipes
- Precast concrete
- Reinforced concrete
- Shear tests
- Solid mechanics
- Strain
- Strain gages
- Structural design
- Structural mechanics
- Tests (by type)
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