Structural design – formwork sheet and filler options
In the transverse direction (width of table), a longitudinal strip of plywood is always inserted between the tables. This means:
▪ The width of the plywood-covered area is 1’ less than the system dimension of 7’ or 9’).
▪ The minimum width of the plywood strip (E) is thus 1’ - this corresponds to a filler of 0.
▪ If there are fillers, always allow for the difference between the actual filler dimension x and the width of the required strip of plywood s.
Example with filler 0
s ... Width of plywood strip 12"
x ... 0
Example with filler x between the nominal dimensions of the tables
s ... Width of filler (x + 1')
x ... Actual filler dimension
Note:
Note on dimension x:
The influence of the filler on the table will be different, depending on which filler option (1 to 3) has been selected.
The appropriate table and the number of floor props needed are selected from the 'Supporting construction with floor props' table, with reference to the values 'x' and the slab thickness 'd'.
Note:
Note on the working method:
▪ Opening of width up to 1’ – sheets can be fitted from above.
▪ Opening of width of over 1’ – sheets are fitted from below, from a rolling scaffold.
The values given in the table are based on 3/4" and 18mm birch plywood. Other sheets (e.g. multi-ply sheets) require special dimensioning.
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