adding new slab to the existing slab + inverted beam
adding new slab to the existing slab + inverted beam
(OP)
Im dealing with a reconstruction.
English is not my 1st language so I think its best to see attached pictures.
Id like to add a new concrete slab + inverted beam to the existing slab.
Should I approach new slab + inverted beam as one element - "L beam"? But in that case i think I shouldnt make connection to the existing slab.
Im not sure how to model this and if I should connect new slab with existing slab.

English is not my 1st language so I think its best to see attached pictures.
Id like to add a new concrete slab + inverted beam to the existing slab.
Should I approach new slab + inverted beam as one element - "L beam"? But in that case i think I shouldnt make connection to the existing slab.
Im not sure how to model this and if I should connect new slab with existing slab.







RE: adding new slab to the existing slab + inverted beam
RE: adding new slab to the existing slab + inverted beam
Other alternatives that I like less.
1) Cantilever the new slab from the existing but don't connect it to the new beam. Let the new slab and the new beam move relative to one another. That may have impacts for finishes and the building envelope however.
2) Cast the new slab a while after the new beam and bearing wall are in place. That should eliminate most of the subsequent movement.
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: adding new slab to the existing slab + inverted beam
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: adding new slab to the existing slab + inverted beam
I dont really understand what do you accomplish with that? Can someone elaborate please?
It appears that you have access to as much beam depth as you need
Maximum height of the beam can be 118 cm. Span is 500 cm.
I was thinkin more about dimensions like 30/50 cm.
RE: adding new slab to the existing slab + inverted beam
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: adding new slab to the existing slab + inverted beam
RE: adding new slab to the existing slab + inverted beam
1) Shallow beam and larger crack or;
2) Deeper beam and smaller crack.
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.