removing part of concrete slab (balcony)
removing part of concrete slab (balcony)
(OP)
Im intending to remove part of the balcony. Slab is 12 - 14 cm thick.
I have no data about reinforcement of the slab.
Do you guys think removing this part of slab will drastically effect bending moments?
I think there shouldnt be a problem since negative moments wont change all that much.
Opinions?

I have no data about reinforcement of the slab.
Do you guys think removing this part of slab will drastically effect bending moments?
I think there shouldnt be a problem since negative moments wont change all that much.
Opinions?







RE: removing part of concrete slab (balcony)
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: removing part of concrete slab (balcony)
Are you removing permanently or just for repair? If permanent, check increased shear at side wall. Negative moment will now be about same as at midspan. If rebar spacing changed along the area, you might run into issue.
RE: removing part of concrete slab (balcony)
When having them cut re-entrant corners, I typically call for a 3" diameter core drill tangent to the corner, and then tell them to not overrun their saw.
A little more chipping but less risk of unsightly re-entrant cracks that start propagating. If you've ever had to notch lumber that's the analogy.
RE: removing part of concrete slab (balcony)