Podcast
Questions and Answers
What is the reason for limiting the size of a cross-section in structural design?
What is the reason for limiting the size of a cross-section in structural design?
- To improve aesthetic appearance only
- To prevent crushing of the surface concrete due to inclined compressive stresses (correct)
- To enhance ductility of the structure
- To reduce material costs
When is it permissible to take the angle (θ) equal to 45 degrees?
When is it permissible to take the angle (θ) equal to 45 degrees?
- For prestressed members
- When dealing with excessive torsional forces
- For non-prestressed members (correct)
- When reinforcement spacing exceeds a certain limit
What is the minimum area of transverse closed stirrups required for torsional reinforcement?
What is the minimum area of transverse closed stirrups required for torsional reinforcement?
- $0.062ywfbs$
- $0.35ywfs$
- $0.062ywfb$ (correct)
- $0.35ywfb$
How should the longitudinal reinforcement required for torsion be distributed around the perimeter of the closed stirrups?
How should the longitudinal reinforcement required for torsion be distributed around the perimeter of the closed stirrups?
In what position should the longitudinal bars or tendons be placed relative to the stirrups?
In what position should the longitudinal bars or tendons be placed relative to the stirrups?
In the design for torsion of reinforced concrete beams, the torsional resistance is primarily provided by which components?
In the design for torsion of reinforced concrete beams, the torsional resistance is primarily provided by which components?
What is the significance of a torque that does not exceed one-quarter of the cracking torque in a reinforced concrete beam subjected to torsion?
What is the significance of a torque that does not exceed one-quarter of the cracking torque in a reinforced concrete beam subjected to torsion?
What happens to the cracking torsion in a reinforced concrete beam under pure torsion?
What happens to the cracking torsion in a reinforced concrete beam under pure torsion?
How is cracking assumed to occur in a reinforced concrete beam under torsion?
How is cracking assumed to occur in a reinforced concrete beam under torsion?
What does the principal tensile stress equal in a non-prestressed beam loaded with torsion alone?
What does the principal tensile stress equal in a non-prestressed beam loaded with torsion alone?
