Page 55 - SMM2 eBOOK

G.40 Centering

1. Particulars of the following shall be given

a. Nature of the surface to be supported.
b. Shape of surface.

2. Centering left in shall be so described. ':

3. Centering with supports over 3.50m high shall be so described stating the height in further
stages of 1 50m.

4. Centering shall be measured as the actual surface to be supported. Strutting, shoring,
bolting, wedging, easing, striking and removing shall be deemed to be included with the
items.

5. Centering for flat surfaces shall be enumerated stating the span of the opening and the
width of the soffit.

6. Centering for soffits over 10° from the horizontal shall be so described stating the angle of
slope.

7. Centering for segmental, semicircular, invert and other curved arches shall each be
enumerated separately stating the span of the opening and the width of the soffit. The rise
shall also be stated except in the case of semicircular arches.

8. Raking cutting, curved cutting, scribed edges, splayed edges, notching centering for key
blocks, projecting voussoirs and the like shall be deemed to be included with the items.

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