29.5.3 - Dowel bars
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Practice Questions
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What is the primary purpose of dowel bars in concrete pavements?
💡 Hint: Think about how they impact slab interaction.
What material are dowel bars typically made of?
💡 Hint: Consider the properties needed in a rigid pavement.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary purpose of dowel bars?
💡 Hint: Think about their functional role.
True or False: Dowel bars are made of aluminum.
💡 Hint: Remember the material properties associated with these bars.
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Challenge Problems
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A pavement with a joint width of 3.5 cm requires dowel bars that can carry a total load of 7500 kg. If you are using a dowel bar of diameter 3 cm, calculate the required embedment length using the given equations.
💡 Hint: Use the relationships among shear, bending, and bearing stresses.
Design dowel bars for a concrete pavement with a thickness of 30 cm, a wheel load of 6000 kg, and a radius of relative stiffness of 90 cm. Determine the spacing based on a joint width of 2.5 cm.
💡 Hint: Remember the effective distance of load transfer is critical.
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