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Concentrated load on Elevated slab 1
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rapt is right. Its all about the width that you consider for the one way shear. In the past, I have taken the width of the load (392mm) + 2 times the distance from the support (45 degree influence) as the width. Even this method is overly conservative and can be tweaked but is a good starting point. Just remember, concrete is not glass. A local failure is not a global failure.
I would not make it as wide as Teguci.
AS3600 gives a dimension on this based on a formual using width from nearest support in clause 9.6, but I think its width is too much also.
I would use somewhere between
width of load + 2D (if the load is near the support)
and
width of the load + .3 of the distance to the nearest support (for a load at midspan).
AS3600 gives a dimension on this based on a formual using width from nearest support in clause 9.6, but I think its width is too much also.
I would use somewhere between
width of load + 2D (if the load is near the support)
and
width of the load + .3 of the distance to the nearest support (for a load at midspan).
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