Step in flat slabs, not at supports
Step in flat slabs, not at supports
(OP)
Say you have a step in a flat slab, for example a 150mm step in the soffit and top of slab. Is there any reason why one could not step a continuous slab if the following criteria are met:
* You crank bars so that you have one continuous bar across the step
* The minimum radius of the bends in the crank bar are such that the bearing stress on the concrete is acceptable according to codes.
* the effective depth of the section is maintained, in other words the step in top and bottom are far enough apart that the perpendicular distance between a rebar and edge/face of concrete remains what it is elsewhere in slab, or the effective depth used in design.
For what reason can you not step a flat slab, and what could you do besides the above to make it possible?
* You crank bars so that you have one continuous bar across the step
* The minimum radius of the bends in the crank bar are such that the bearing stress on the concrete is acceptable according to codes.
* the effective depth of the section is maintained, in other words the step in top and bottom are far enough apart that the perpendicular distance between a rebar and edge/face of concrete remains what it is elsewhere in slab, or the effective depth used in design.
For what reason can you not step a flat slab, and what could you do besides the above to make it possible?






RE: Step in flat slabs, not at supports
RE: Step in flat slabs, not at supports
RE: Step in flat slabs, not at supports
RE: Step in flat slabs, not at supports
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.