The minimum lap length required for reinforcing bars in flexural

The minimum lap length required for reinforcing bars in flexural
| The minimum lap length required for reinforcing bars in flexural  tension is α times the bar diameter. The value of α is

A. 24

B. 15

C. 30

D. 20

Please scroll down to see the correct answer and solution guide.

Right Answer is: C

SOLUTION

Concept:

Lap splicing is done by overlapping the bars over a certain length that makes the transfer of force from terminating bar to the connecting bar.

The straight length of the lap should not be less than 15 times the bar diameter or 200 mm whichever is more. The lap length must at least be equal to development length.

In flexural and direct tension, minimum lap length should be 30 times the bar diameter. In compression minimum lap length should be twenty four times the bar diameter.