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RCC T beam Or Rectangular Beam????

RCC T beam Or Rectangular Beam????

RCC T beam Or Rectangular Beam????

(OP)
I am designing a small RCC building (Sizes 28’x40’) as shown below (Roof plan) in Etabs software but I am confuse that I should design the beam as rectangular beam or T beam??
And second question is that from below options which method is easy for construction for this kind of small building??
Roof Slab and beam pouring at same time??
Beam and Roof slab pouring separately (if we make the pouring separately then how we can make slab and beam connection )??

RE: RCC T beam Or Rectangular Beam????

Quote (shag123)

I should design the beam as rectangular beam or T beam??

I'd design it as T-beam for positive bending at least. It's efficient and entirely appropriate.

Quote (shag123)

And second question is that from below options which method is easy for construction for this kind of small building??

It's usually most economical to pour the beams and slab at the same time. Fewer operations is usually cheaper.

Quote (shag123)

(if we make the pouring separately then how we can make slab and beam connection

You need to provide rebar crossing the joint and developed on either side of the joint to resist horizontal beam shear via shear friction or something analogous. Usually, small diameter, nominal stirrups in the beam will do the trick. And stirrups that you use for vertical shear resistance can pull double duty as shear friction bars without necessarily adding to the demand. I've actually seen at least one study that suggests that you can get adequate horizontal shear transfer without any shear friction reinforcing bars at all.

I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.

RE: RCC T beam Or Rectangular Beam????

With those small spans, you could delete the beams and design the floor as a flat plate, but if you need the beams for other reasons, construction is easier when the slab and beams are poured together.

BA

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