Hi Everyone, I am designing a be

Sajjad Hussain · Sep 16, 2020

Hi Everyone,

I am designing a beam for that I know that the lap splices for bottom bars shall be given after a distance '2D' from the face of column. But if I use this, the lap comes in the middle where we have maximum tensile stresses. In such conditions can we skip "2D" conditions? Please help me.

BAretired · Sep 16, 2020

What is D? Bar diameter? What code are you using?
If they are bottom bars, why are they in maximum tension near the column? That should be a zone of negative moment where the top bars are in tension.

BA

Celt83 · Sep 16, 2020

If your beam is short enough that the code prescribed splices end up occurring at or near mid span than the bars should be fabricated to be the full length of the beam with no splices. You may want to stipulate continuous bars in this situation to avoid any ambiguity with the rebar detailer/fabricator.

My Personal Open Source Structural Applications:

https://github.com/buddyd16/Structural-Engineering

Open Source Structural GitHub Group:

https://github.com/open-struct-engineer

dauwerda · Sep 16, 2020

It sounds like you are trying to detail as a special moment frame where D is the depth of the beam. If it does need to be detailed as a a special moment frame, no you can't skip the requirements. Instead of using a lap splice you may find it advantageous to use a mechanical splice.

Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Hi Everyone, I am designing a be

Sajjad Hussain

Civil/Environmental

BAretired

Structural

Celt83

Structural

dauwerda

Structural

Similar threads

Part and Inventory Search

Sponsor