Beam supporting slab design
Beam supporting slab design
(OP)
Is it possible or common to design a beam with the same depth as the slab it is supporting? If so, how can I justify the width of the beam given the fact the soffit of both slab and beam would be the same?
Comments would be appreciated.
Comments would be appreciated.






RE: Beam supporting slab design
RE: Beam supporting slab design
Respect the justification, proper assignment of the beam rebar to some width resulting in satisfactory calculated stresses and deformation may validate one such design, whilst the issues of behavior 2 way as named by benishak will still be present.
Don't forget that the loads of the notional slab need be passed to the beam axis, i.e, bending along the direction orthogonal to the beam encompasses the full extent of the floor along such line, the width of the notional beams included.
RE: Beam supporting slab design
This is sometimes done around voids in slabs to provide a support or strong band to support the load for the area of slab that is not continuous to the supports. The design width is then the width that you logically think will be supporting that load. It should not normally be more than about .1 to .15 of the span length. There was a post on Strong Bands" which discussed this a couple of weeks ago.