What is lapping length and Development length.

Question

Accepted Answer

Lapping length is the overlap of two reinforcing bars to ensure continuity, while development length is the length required to transfer the stress from the bar to the surrounding concrete.

Lapping length is used to maintain the strength and integrity of reinforced concrete structures.
It is necessary to provide lapping length to ensure the load is transferred smoothly from one bar to another.
The lapping length is typically specified in building codes or engineering standards.
For example, in a column, the lapping length is required at the junction of vertical bars to ensure proper load transfer.
Development length is the length of the bar required to develop its full strength by bonding with the surrounding concrete.
It is necessary to provide sufficient development length to prevent premature failure of the reinforcement.
The development length depends on factors such as the type of bar, concrete strength, and bond strength.
For example, in a beam, the development length is required at the ends of the bars to ensure proper load transfer.

Accepted Answer

Lapping length is length of bar needed to transfer stress from one steel to another steel.

What is lapping length and Development length.

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