2.1.4-1

Columns

Unit: m Sub-Element: 2.1.4 - 4 Concrete frames
Component Information
Code:
2.1.4-1
Sequence:
1
Unit:
m
Sub-Element:
2.1.4 - 4 Concrete frames
Description:

Columns

Details to State:

details, including number (nr) of columns, column size (mm), concrete grade, reinforcement rate (kg/m3) and type of formwork finish, to be stated

Component Statistics
12
Measurement Rules
15
Included Items
2
Excluded Items
Measurement Rules (12)
C1 1

Columns: the linear length measured is the distance between the top of the slab/bed, pile cap or ground beam (as appropriate) and the soffit of the beam attached to the next floor level (or to soffit of suspended slab if no beams).

C2 2

Size of column grid to be stated.

C3 3

Beams: the linear length is measured on the centre line of the beam.

Note: Where upper floors do not form an integral part of the structural frame, the beam size stated is the total width by the total depth. Where upper floors form an integral part of the structural frame, the beam size stated is the total width by the depth below the concrete floor (measured from the underside of the concrete floor to the bottom/underside of the beam). An appropriate allowance should also be made in the unit rate for beam reinforcement that is integrated within the concrete floor.
C4 4

Walls: the area measured is the area of the wall, measured on the centre line of the wall. No deduction is made for door openings, windows, screens, etc.

C5 5

No deduction is made for volume of steel.

C6 6

Concrete grade/mix to be stated.

C7 7

Concrete additives: details to be stated.

C8 8

Complex shapes: details to be stated.

C9 9

Special formed finishes: details to be stated.

C10 10

Curved work is to be described and identified separately.

C11 11

Work to existing buildings is to be described and identified separately.

C12 12

Where the contractor is only responsible for designing specific elements and/or components of the building project (i.e. not the entire building project), contractor-designed work is to be described and identified separately.

Included Items (15)
1.

Beams.

2.

Columns, blade columns, etc.

3.

Walls and core walls forming an integral part of the structural assembly.

4.

Concrete.

5.

Specialist concrete grades and additives.

6.

Reinforcement, including starter bars, punching shear reinforcement, etc.

7.

Reinforcement for precast, prestressed and post-tensioned concrete, including stressing cables, applying stressing, etc.

8.

Formwork.

9.

Designed joints (e.g. to walls).

10.

Worked finishes (i.e. in situ surface treatments), including the application of surface hardeners.

11.

Special formed finishes to in situ concrete.

12.

Grouting up of frame components.

13.

Forming openings for doors, windows, screens, etc.

14.

Sundry items.

15.

Where works are to be carried out by a subcontractor, the subcontractor’s preliminaries, design fees, risk allowance, overheads and profit, with allowance for these to be made within unit rate applied to element or component.

Excluded Items (2)
1. Ref: 2.2

Upper floors (included in element 2.2).

2. Ref: 2.3.1

Roof slabs (included in sub-element 2.3.1).

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