$Cl=1$

Formwork Design

A wall form panel is to be designed for casting a reinforced concrete wall of $5\mathrm{.}5$ m high $500mm$ thick $8\mathrm{.}0m$ long. In the form, the plywood is supported by rows of horizontal walers. The walers are supported by vertical soliders which are fixed by steel rods. You may use the maximum design concrete pressure for the whole height of the formwork throughout. Assume the casting is done with a single lift.

Casting Conditions and Design Criteria:

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$($a$)$ Determine and plot the design concrete pressure distribution in $1-$m intervals for

the wall form.

$($b$)$ Determine the maximum spacing $($to the nearest $25$ mm $)$ of the following items

for the vertical form panel:

$($i$)$ horizontal walings,

$($ii$)$ vertical soldiers, and

$($iii$)$ steel rods

$($c$)$ Calculate the tension in steel rods which keep the double skins in position

against the outwards concrete fluid pressure.