A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Mid-Depth Punch-Out Research of Continuously Reinforced Concrete Pavement
A nonlinear emulation model of continuously reinforced concrete pavement (CRCP) was established by FEM to analyze mid-depth punch-out mechanism to provide a theoretical basis and reference for pavement design and punch-out control. Thermal sensitivity of concrete material and steel as well as bonding performance between the reinforced concrete and steel were accounted in the model. Influence factors of horizontal cracks, such as coefficient of thermal expansion, elasticity modulus, the bond-slip relationship between reinforced concrete and steel, and the location of steel bars, were researched to analyze how horizontal and longitudinal cracks appear and develop into punch-out in real projects. Results show that thermal stress is far greater than warping stress and the maximum main stresses of them were located in the same place; aggregate of low modulus and low expansion as well as reasonable steel location can help to control cracks; modulus of steel shows little effect to horizontal cracks.
Mid-Depth Punch-Out Research of Continuously Reinforced Concrete Pavement
A nonlinear emulation model of continuously reinforced concrete pavement (CRCP) was established by FEM to analyze mid-depth punch-out mechanism to provide a theoretical basis and reference for pavement design and punch-out control. Thermal sensitivity of concrete material and steel as well as bonding performance between the reinforced concrete and steel were accounted in the model. Influence factors of horizontal cracks, such as coefficient of thermal expansion, elasticity modulus, the bond-slip relationship between reinforced concrete and steel, and the location of steel bars, were researched to analyze how horizontal and longitudinal cracks appear and develop into punch-out in real projects. Results show that thermal stress is far greater than warping stress and the maximum main stresses of them were located in the same place; aggregate of low modulus and low expansion as well as reasonable steel location can help to control cracks; modulus of steel shows little effect to horizontal cracks.
Mid-Depth Punch-Out Research of Continuously Reinforced Concrete Pavement
Wu, Fan (author) / Dai, Yi-Qing (author) / Ni, Fujian (author)
17th COTA International Conference of Transportation Professionals ; 2017 ; Shanghai, China
CICTP 2017 ; 1234-1243
2018-01-18
Conference paper
Electronic Resource
English
Continuously reinforced concrete pavement
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Continuously-reinforced concrete pavement
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Continuously reinforced concrete pavement
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