نماذج لمخازن صغيرة تحوي من 50 : 100 طن متري

In an earlier chapter a design was given for stacking bags 3 x 2, twenty alternating layers high, giving a total weight of 5 metric tons. The dimensions of a 50m2 store with a capacity of 50 metric tons and of an 84m2 store with a capacity of 100 metric tons on this basis are sown in figures (68) and (69) respectively.
These two stores have a central passageway 2 meters wide with exterior access by means of a door 2 meters wide and 2.10 meters high. On each side of the passageway there are stacking areas, 3 x 6.3m for 60 ton store or 3 x 10.5 m for a 60 ton store. These stacking areas are at an instance of 0.2m from the walls.
The roofing of these stores may be of wood, metal or eternity sheets, whichever is the most economical. The roof should extend 1 meter beyond the walls in order to give protection to loading and unloading areas.
Figure (7) shows a store roofed with eternity sheeting. The area can be extended progressively horizontally in two directions at right angles, with a capacity varying from 15 to 240 metric tons.
In the first stage this store can be enlarged from l5t to 120t capacity without any structural alteration, simply by extending the existing structure.
In order to bring the capacity up to 240t, the righ5-hand wall is removed and the store enlarged towards the right by erecting a new wall as shown in figure (70).
Another type of store which is capable of progressive extension has a single-span roof.
Its construction, shown in figure (71), can begin with a single 5.40m x 6.08m section, giving a capacity of 45t with a passageway occupying one row of three units.
The figure shows two 5.40 x 6.04m sections being used, with a passageway 1.80m wide, which allows for a capacity of 120t (or 90 if a subsidiary passageway is required).