The bond stress acting parallel to the reinforcement on the interface...
Bond stress is defined as the shear force per unit of the nominal surface area of the reinforcing bar, i.e., the shear stress acting parallel to the bar on the interface between the bars and the surrounding concrete.
Hence the correct answer is option A.
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The bond stress acting parallel to the reinforcement on the interface...
Bond Stress on Reinforcement
Bond stress is the interfacial shear stress acting parallel to reinforcement on the interface between bar and concrete. This stress is responsible for the transfer of load between the concrete and steel. When a load is applied to a reinforced concrete member, it is transferred from the concrete to the steel through bond stress.
Types of Bond Stress
There are mainly two types of bond stress acting on the interface between bar and concrete:
1. Shear Stress
Shear stress is the tangential force acting parallel to the interface between the steel and concrete. It is responsible for the transfer of shear force between the steel and concrete.
2. Local Stress
Local stress is the compressive stress acting perpendicular to the interface between steel and concrete. It is responsible for the transfer of compressive force between the steel and concrete.
Factors Affecting Bond Stress
Several factors affect the bond stress between steel and concrete, including:
- Surface texture of the reinforcement
- Diameter of the reinforcement
- Bond length of the reinforcement
- Concrete strength
- Concrete cover
- Type of reinforcement
Conclusion
In summary, bond stress is the interfacial shear stress acting parallel to reinforcement on the interface between bar and concrete. The two types of bond stress are shear stress and local stress. Several factors affect the bond stress between steel and concrete, including surface texture, diameter of the reinforcement, bond length, concrete strength, concrete cover, and type of reinforcement.