From the table derived in section 2 of this document the maximum allowable load acting at the mid span on a plate limited by bending resistance is 58.
Floor plate bending capacity table.
Varma in figure 4 my is the moment corresponding to first yield and mp is the plastic moment capacity of the cross section.
The follow web pages contain engineering design calculators that will determine the amount of deflection and stress a flat plate of known thickness will deflect under the specified load and distribution.
The 16 ksi allowable stress seems to be very conservative assuming that the plates would likely have a yield.
For verification the road plate shall be modelled as an equivalent beam according to en1993 1 7 2007 5 2 3 4 2 1 1 2 1 resistance to bending.
Many of the stress and deflection equations and calculators referenced from.
At other points there are biaxial stresses in the plane of the plate.
For a rectangular section f is equal to 1 5.
In that table in many cases for combinations of plate thickness span and loading the results are deflections that are larger than 1 2 of the plate thicknesses.
Slip resistantfloorplate load table thickness inches span 3003aluminumfloorplate 333 148 83 53 37 0 13 0 30 0 53 0 83 1 19 750 333 188 120 83 61 47 0 09 0 20 0 35 0 55 0 79 1 08 1 41.
1 2 2 resistance to shear.
Floor plate bending capacity floor plate uniform loading capacity of the main calculation worksheet at the right side of the screen.
For a wide flange section f is equal to 1 1.
Also at the right side of the screen there.
If you ll review the floor plate capacity table on page 2 145 of the asic 9th manual asd you ll see that there is a deflection line of 1 100 of the span shown.
For class 1 sections.
Fourth impression 9 00 and the floor plate bending capacity table found on page 2 145 is replicated off actual load and divide by the load given above.
The ratio of mp to my is called as the shape factor f for the section.
Flat plate deflection calculator flat plate stress calculator the plate deflects.
2 145 in the 9th edition asd manual indicates that the loads are based on an extreme fiber stress of 16 ksi and simple span bending.
Design of steel structures prof.
Engineering calculators menu engineering analysis menu.
The middle surface halfway between top and bottom surfaces remains unstressed.
Floor plate a note at the bottom of the floor plate bending capacity table on p.