Prestressed Concrete – Interview Questions for Structural Engineers 2

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1.

In a fully prestressed concrete beam, how much of the cross sectional area can be considered effective?

2. Pre-stressed concrete members usually contain what type of reinforcement?
3. Precast members are typically stressed using which method of tensioning?
4. Where will the stress value be greatest in the column in the image under eccentric load P?

Column with moment
5.

Pre-stressing a concrete beam primarily adds what type of stress to the section?

6. What type of stress is directly introduced by prestressing?
7. Concrete is the most common prestressed material.
8. In this method, the prestress is introduced by bond between steel & concrete.
9. In this method, the prestress is imparted to concrete by bear ing.
10. Post tensioning can be used to reduce the deflection of a beam. True or False

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