Concrete slab rebar splice location - staggered required or recommended?

[WayneRuin10]

Hello every one,
I have a concrete slab that spans between steel beams. The contractor on site is splicing the main rebars at same location (please see attached sketch). Is this okay or is staggering splice locations required by ACI?

According to CSRI manual of standard practice, it is left to the designer's discretion.

THANKS!

 

[slickdeals]

Technically not required if they are all class B lap splices. However, if possible it's good to stagger lap splices as it improves congestion etc. See Section 25.5.2 (ACI 318-19).

 

[dik]

The only time I use staggered bars is for the termination of top bars in a slab to minimise cracking.

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-Dik