Measurement and Documentation CON4110 Week No. 7: 250 x250 Column
Measurement and Documentation CON4110 Week No. 7: 250 x250 Column
Measurement and Documentation CON4110 Week No. 7: 250 x250 Column
Week No. 7
「 --- 1 「 一一- -,
250 x250 Column
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A
ODD盯
h四. .
-
戶可 「
5000
PLAN
250x500 GR口UND BEAM
¥2f
SECT I口N "A-A"
N口TE :- 1. ALL STRUCTURAL CONCRETE TO BE REFORCED CONCRETE. Gr. 20/20
2. CONCRETE TO BLINDING LAYER & GROUND FLOOR BEDDING
TO BE PLAIN CONCRETE GR. 15/20
3. SAWN FORMWORK TO BE USED
Int「oduction: This example involves the taking off of substructure works including pad foundation and
ground beam.
Steel bar reinforcement is also included and is measured from the reinforcement
schedule provided.
Students shall note the application of “measurement ove「all and then deduct wants and
”
voids in the surface excavation.
Excavate
Backfill
- Foundation
Blinding Jaye「
Adjustment of backfill occupied by the blinding
Disposal of spoil
Sawn formwork
Reinforcement
Pad foundation
Adjustment of backfill occupied br the pad
Disposal of spoil
- RC. Colum n
Sawn formwork
Reinforcement
Concrete
。
Adjustment of backfill occupied by the c lumn
Disposal of spoil
- Trench for ground beam
Excavation
Backfill
- RC. beam
Blinding laye「
Adjustment of backfill occupied by the blinding
Disposal of spoil
Sawn formwork
Reinforcement
Concrete
Adjustment of backfill occupied by the beam concrete
Disposal of spoil
- Ground floor bed
Ha吋core
DPM
Concrete
Adjustment of backfill occupied by hardco「e
SMM rules:
1. Su「face excavation not exceeding 200mm average depth shall be given SUPER stating the
ave『age thickness. ( )
2. Excavate ove「site to reduce level exceeding 200mm average depth shall be give門 CUBE.(.
3. 250 mm working space shall be allowed for in the excavation from the face of concrete requiring
formwork where the fa 『mwork does not exceed 600 mm. ( )
4. 600 mm working space shall be allowed fa「in the excavation from the face of conc「ete requi 『ing
。 。
formwork where the formw rk exceeds 600 mm··and the bottom f the formwork exceeds 600 mm
below the starting point of excavation. ( )