Reinforcement is used in reinforced concrete to provide tensile strength, as concrete is strong in compression but weak in tension.

Steel bars are the most common type of reinforcement used in reinforced concrete due to their high strength, ductility, and relatively low cost.

The minimum percentage of reinforcement required in a reinforced concrete beam is 0.5%, as per ACI 318-19.

The maximum percentage of reinforcement allowed in a reinforced concrete column is 8.0%, as per ACI 318-19.

Stirrups are used in reinforced concrete beams to provide shear strength by resisting the diagonal tension stresses.

The minimum spacing between stirrups in a reinforced concrete beam is d/2, as per ACI 318-19.

Development length is the length of reinforcement required to develop the full strength of the reinforcement by bond with the concrete.

The minimum development length for a No. 4 steel bar in a reinforced concrete beam is 12d, as per ACI 318-19.

Concrete cover is provided in reinforced concrete to protect the reinforcement from corrosion by moisture and oxygen.

The minimum concrete cover required for a reinforced concrete beam is 1.5 inches, as per ACI 318-19.

A moment-resisting frame in a reinforced concrete building is designed to resist lateral loads such as wind and seismic forces.

Special moment frames are the most common type of moment-resisting frame in reinforced concrete buildings due to their high strength and ductility.

Shear walls in reinforced concrete buildings are designed to resist lateral loads such as wind and seismic forces.

The minimum thickness of a shear wall in a reinforced concrete building is 6 inches, as per ACI 318-19.

The foundation of a reinforced concrete building is designed to transfer the load of the building to the ground safely and evenly.