Discussion
Consider the following statements about IS 13920.
1. It applies in Zones III, IV and V.
2. It requires a minimum concrete grade of M20.
3. It permits lap splices at the ends of columns.
Which of the statements are correct?
Answer: A
The first two are correct statements of the standard. The third is wrong: splices are confined to the central half of the member, because the ends are where hinging and the largest bar stresses occur and a lap there would be the weakest point at the worst location.
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