Introduction to Setting Out a Building
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Transcript of Introduction to Setting Out a Building
THE SITE IS CLEAREDTHE SITE IS CLEARED
MARKING OUT THE SITEMARKING OUT THE SITEOnce the topsoil has been removed (and levels reduced if necessary), the foundation can be set-out by surveyors or engineers. The graphic on the left shows the foundation plan superimposed over the site.
The line of the foundations can be highlighted using hydrated lime - here the trench centre line is being marked. On some sites you will find both sides of the trench marked. Digger buckets are available in various widths to suit specific trenches.
ESTABLISH AND TRANSFER SITE DATUMESTABLISH AND TRANSFER SITE DATUM
Normally found on numerous public buildings, usually incised into walls.
Ordnance Survey Bench Mark
(O.B.M.) (T.B.M)
TRANSFERRING LEVELSTRANSFERRING LEVELS
Always reverse straight edge and level together
SETTING OUTSETTING OUT
CHECKING FOR SQUARECHECKING FOR SQUARE
POSITION PROFILESPOSITION PROFILES
Boning Rods Datum
Temporary Bench Mark
POSITION CORNER PROFILESPOSITION CORNER PROFILES
CHECK THE DIAGONALSCHECK THE DIAGONALS
SETTING OUT WALLINGSETTING OUT WALLING
GAUGING THE BRICKWORKGAUGING THE BRICKWORK