TM930!1!04E Methods of Measurements

CIVIL WORKS METHODS OF MEASUREMENT CIVIL DEPT.

A.

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SCOPE The purpose of this document is to provide written and graphic descriptions of the methods of measurement to be applied for the quantities calculation of the works executed These methods of measurement have been developed in such a way to facilitate and simplify the accounting jobs relevant to the civil works. The SUBCONTRACTOR shall take into consideration these methods of measurement for the quotation of his own unit prices.

d t e n e s s u n e o b c t o n e n t n t i a r c w d r n o a i r y p t r t e u p o o r h t p i w s ’ t e n s o o m p i r n u c p e T y s n i a t n r o e f m u s r c e o d h t o s i h y T b

e r e e n o s i s z e a z z ò i u r o p t n u o a n a v i e t t n e n v o e r m p i n c a e z T n i e d s i à t z r e e i r t p o r a p d o è d o o m t n n e u c m u l c a n o i d o t o a t s z z e i l i u t Q u

TM 930.1/04E

CIVIL WORKS METHODS OF MEASUREMENT

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RELATIONSHIP BETWEEN WORK ACTIVITY AND CODE LIST

Point

d t e n e s s u n e o b c t o n e n t n t i a r c w d r n o a i r y p t r t e u p o o r h t p i w s ’ t e n s o o m p i r n u c p e T y s n i a t n r o e f m u s r c e o d h t o s i h y T b


Work activity

Unit of meas.

1.

GRUBBING AND SCRAPING

m2

2. 2.1 2.2

PILES Driven and cast in place piles Reinforcements of cast in place pile

3. 3.1 3.2 3.3 3.4

EXCAVATIONS General Excavations with depth > 80 cm. General General Excavations with depth <= 80 cm. Limited section excavation Sheet piling

4. 4.1 4.2 4.3 4.4 4.5 4.6

DEMOLITIONS / DISMANTLING General information for any kind of demolition/dismantling Demolition of concrete and R.C. structures Demolition of masonry works Demolition of floor slabs Others Piles head demolition

m

5. 5.1 5.2

EMBANKMENTS AND BACKFILLINGS Embankment BACKFILLING

m 3 m

6. 6.1

TRANSPORT Transport Transport off site of rubbish material

m

7. 7.1 7.2 7.3 7.4

CONCRETE AND R.C. WORKS Lean concrete Concrete foundation Elevated concrete Concrete ground floor paving

m -m 3 m 3 m 3 m

8. 8.1 8.2

FORMWORKS AND BOXES FOR ANCHOR BOLTS. BOLTS. Formwork Boxes for anchor bolts

m 2 m N

9.

REINFORCEMENTS REINFORCEMENTS

AA00AA…, AA00BA…

m Kg 3

m 3 m 3 m 2 m

Page

5

AA01… AA01.. AA10..

6 6 6

AA02.. AA02A.. AA02AB.. AA02B.. AA02DA..

7 7 7 8 9

AA03..

10

3

AA03B.., AA03D.. AA03C.., AA03E.. AA03F..

3

AA03AA..

10 10 10 10 10 10

AA05.. AA05A… AA05B..

11 11 11

AAO6.. AA06AAA01

12 12

AAO8.. AA08AA… AA08AB.. AA08AD… AA08AG…

13 13 13 14 14

AA09.. AA09A.., AA09C.. AA09B..

15 15 15

AA10..

16

AA11.. AA11A.. AA11B..

17 17 17

AA12A…

18

m 3 m 2 m

3

3

2

3

2

10. ANCHOR BOLTS AND EMBEDDED WORKS 10.1 Anchor bolt 10.2 Embedded items

Kg - N. Kg - m

11.

m

GROUTING

Code

3

TM 930.1/04E


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d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b

e r e e n o s i s z e a z z ò i u r o p t n u o a n a v e i t t n n e o v e m r i p n c a e z T n i e d s i à t z e r i e r t p o a r p d o è d o o m t n n e u c m u l c a n o i d o t o a t s z z e l i u i t Q u

Work activity

Unit of meas.

GEOTEXTILE SHEET, GEOMEMBRANES, WATERPROOFING AND THERMAL AND ACOUSTICAL INSULATION

m

13.

FIREPROOFING

m

14.

MASONRY WORKS (External wall and partition)

m

PLASTERING AND FINISHING COATS

m

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Code

Page

2

AA07.., AA16.., AA21..

19

2

AA17..

20

2

AA18.., AA20..

21

2

AA24..

22

2

AA26.., AA27.. AA26.., AA27.. AA26CD…

23 23 23

2

AA28…

24

2

16. FLOOR – WALL LININGS 16.1 Floor and wall linings 16.2 Removable floor

m 2 m 2 m

17.

FALSE CEILING

m

18.

DOOR - WINDOW - SHUTTERING LOUVER - GLAZING

m

AA31.., AA32.., AA33.., AA35.. 25

19. GUTTERS, FLASHINGS AND DOWNSPOUTS 19.1 Gutter and flashing 19.2 Downspouts

Kg m - Kg

AA34… AA34AA…, AA34BA… AA34AB…, AA34BB…

26 26 26

20.

m

AA36…

27

PAINTING OF WALLS

21. ROADS AND YARDS WORKS 21.1 Roads/yards 21.2

Finishing of unpaved areas

STEEL STRUCTURES – METAL SHEETS, SIDING, ROOFING AND FLOORING 22.1 Steel structures, access stairs, platforms, handrails, ladders, frame supports etc. 22.2 Siding, roofing and flooring 23. 24.

2

m-m 3 m 2 m

2

AA50… 28 AA50AA.., AA50AB.., AA50AC, AA50BA.., AA50BC.. 28 AA50BB… 28

22

AI30…

29

Kg 2 m

AI30.. AI30…

29 30

ELECTRIC INSTALLATION “CIVIL BUILDING”

LS

AN41…

31

UNDERGROUND EARTHING SYSTEM

m-N

AQ42…

32

25. UNDERGROUND SEWER AND PIPING SYSTEMS 25.1 Concrete, gres and plastic piping system m 25.2 26.

Steel piping system HVAC SYSTEM INSTALLATION

27. PAINTING OF WOODEN AND STEEL WORKS 27.1 Pipes 27.2 Steel structures 28. ANNEX

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Point

4

kg

AQ49.. 33 AQ49AA.., AQ49AB.., Q49AC, AQ49AD.., AQ49AE.. 33 AQ49AF.., AQ49AH.. 33

LS

AZ43…

34

AW37… AW37A.. AW37B..

35 36 37 38

2

m 2 m


GRUBBING AND SCRAPING

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1.

TM 930.1/04E

(m2)

(Code list AA00AA.., AA00BA..)

The surface area of these works is to be calculated on the basis of the planimetric dimensions measured by SUBCONTRACTOR and verified by CONTRACTOR.



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2.

PILES

(Code list AA01..)

2.1

Driven and cast in place piles

(m)

(Code AA01..)

The pile length is defined as follows: L = Q2 – Q4 (see Annex 1)



Q1

is the elevation of soil that can be: - NGE (natural ground elevation) - PTS (prepared soil elevation) - PSG (general excavation soil elevation)

Q2

is the elevation of the pile head shown in the drawings issued for construction.

Q3

is the elevation of the cut-off head of pile

Q4

is the elevation of the tip of pile as per the daily report of piles driving.

Blank crossing is the length (between Q1 and Q2 elevations) without pile construction. The blank crossing up to 1 m of length is included in the unit price of pile.

2.2

Reinforcements of cast in place piles

(kg)

(Code AA10..)

The weight of plain and deformed steel bars is to be calculated on the basis theirs theoretical weight per unit length (see enclosed Annex 11), multiplied by the number of rebars and cage length of pile shown on drawing issued for construction. All charge as per point 8.1. The weight of extrarebar used for cages assembly and/or laying, if not indicated on construction drawings, is not to be accounted.

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3.

EXCAVATIONS

(code list AA02)

3.1

General Excavations with depth > 80 cm.

3

(m )

(Code AA02A..)

Any wide excavation area, with a depth more than 80 cm., belongs to this category The volume of this work is to be calculated on the basis of the average of the surface area of the sections (a1…a2…etc.) multiplied by the distance taken along the axis, between the considered sections. See ANNEX 3. d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


3.2

-

The surface area of the section is to be calculated on the basis of the dimensions shown in construction drawing multiplied by the depth of excavation.

-

The depth of excavation is the average of the values measured between the natural ground elevation (by topographic survey) and the bottom elevation of excavation shown on drawings issued for construction.

-

The elevation of ground level shall be defined by topographic survey; its relevant cost shall be SUBCONTRACTOR care.

-

The slopes are not to be accounted, unless sizes specifically indicated on the drawings issued for construction.

General Excavations with depth <= 80 cm.

3

(m )

(Code AA02AB..)

Any wide excavation area, down to a maximum depth of 80 cm., belongs to this category. The volume of this work is to be calculated, as indicated in point 3.1., on the basis of the surface area multiplied by the depth of excavation indicated in the drawings issued for construction. The slopes are not to be accounted, unless sizes specifically indicated the drawings issued for construction. The volume of any obstacle, such as foundations, pipes, etc. present in the excavation shall not be deducted. See ANNEX 2.

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3.3

TM 930.1/04E

Limited section excavation

3

(m )

(Code AA02B..)

Any limited excavation works for R.C. foundations, basins with limited surface, pits, trenches, underground pipe systems, cable ducts, ditches, etc. and any other excavation with limited section belongs to this work category. a)



The volume of excavation for items as R.C. foundations, basin, pits, etc., shall be calculated on the basis of the planimetric area of the item, shown on construction drawings, multiplied by the average depth taken between ground elevation (NGE or PTS or PSG) and bottom design elevation of the concrete item, included lean concrete thickness if any, regardless to actual volume excavated. See ANNEX 2 – 4 – 5.

b)

The excavation volume relevant to trench, duct, channel with limited section and trench for underground pipes shall be calculated on the basis of the average of the surface area (a1…a2…a3…etc.) multiplied by the distance, taken along the axis, between the considered sections.

-

The surface area of the section is to be calculated on the basis of the dimensions shown in construction drawing multiplied by the depth of excavation.

-

The depth of excavation is the average of the values measured between the natural ground elevation (by topographic survey) and the bottom elevation of excavation shown on drawings issued for construction.

-

The theoretical width for underground pipes trench is to be calculated by adding to the nominal diameter of pipes (DN) the coefficient "K" for each side, as shown on ANNEX 6 .

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3.4

TM 930.1/04E

Sheet piling

2

(m )

(Code AA02DA)

The surface area of sheet piling to be accounted, of any shape, dimension and weight, shall be calculated on the basis of its perimeter multiplied by the excavation depth, as shown on ANNEX 7 Where:



NGE =

Natural ground elevation by topographic survey

PTS =

Prepared top soil elevation shown on construction drawings

BOE =

Bottom of excavation, this elevation is specified in construction drawings.

h

is the value obtained by NGE/PTS minus BOE elevation.

=

L1, L2, L3, L4, L.. = is the length of the sides of sheet piling

The surface area shall be calculated as follows: A = (L1+L2+L3+L4+…) x h

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4.

DEMOLITIONS / DISMANTLING

(Code list AA03..)

4.1

General information for any kind of demolition/dismantling The demolition/dismantling etc, work shall be evaluated only on the basis of each volume or surface calculated by the dimensions (width, length and height) shown in the drawing or taken at site before demolition. The actual demolition volume or surface in no case shall be considered.



4.2

Demolition of concrete and R.C. structures

4.3

Demolition of masonry works

4.4

Demolition of floor slabs

4.5

Others

4.6

Piles head demolition

3

(m ) 2

(m )

3

(m )

(Codes AA03B.., AA03D..)

(Codes AA03C.., AA03E..)

(code AA03F..)

(Codes AAO3GA.., AA03GB.., AA03GC.., AA03HA.., AA03HB.., AA03IA01, AA03AB1, AA03LA01) 3

(m )

(Code AA03AA)

The demolition volume of this work is to be calculated on the basis of the section pile area multiplied the height of demolition indicated on the drawings issued for construction.

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5.

EMBANKMENTS AND BACKFILLINGS

5.1

Embankment

3

(m )

(Code list AA05)

(Code AA05A…)

This work is to be evaluated on the basis of its volume after compaction. The volume is obtained by the average of the surface area of the sections (a1…a2…a3…etc.) multiplied by the distances, taken along the axis, between the considered sections (a1…a2…a3…etc.) See ANNEX 8. The surface area of the section is to be calculated by multiplying the average of the widths, as per construction drawings by the height.



The height is the average of the values measured on the axis, between the top elevation of the embankment and the bottom elevation of excavation, according to the drawing issued for construction. Any part exceeding the dimensions required in the construction drawing is too not to be accounted for. See the following explanatory example:

5.2

VEM =

a1+a2 ---------2

x L1 +

a1 =

w1+w2 ---------2

x h1

BACKFILLING

3

(m )

a2+a3 --------2

x L2 +

a2 =

a3+etc. ---------2

x L3 etc.

w1.2+w2.2. -------------2

x h2 etc.

(Code AA05B..)

This work is to be evaluated on the basis of its volume after compaction. The volume of the backfilling is to be calculated on the basis of the dimensions (width, height and length) show in the drawings issued for construction regardless of the actual volume of the backfilling executed. See ANNEX 2 and 9 Following the calculation formula indicated in Annex 2 and 9, the Volume of Backfilling ( VB ) is the following: a)

VB = (VGE + VE1 + VE2) – (volume of subbase crushed stone and concrete incorporated in the backfilling)

b)

VB = VE3 – (volume of the concrete incorporated in the backfilling)

c)

VB (of subbase crushed stone) = a2 x b2 x hs

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6.

TRANSPORT

(Code list AAO6..)

6.1

Transport off site of rubbish material

m3

(Code AA06AAA01)

Transport off site of material arising from excavation shall be measured by Volume. Final measurement shall be quantified when all the earthwork is completed, as using the following formula: V = Vex - Vbf + Vus Where: d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


Vex = all Volume of excavation based on drawings issued for construction Vbf = all Volume of backfilling based on drawings issued for construction Vus = all Volume of unsuitable materials, measured with excavation measurament criteria, and certified by CONTRACTOR representative.

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7.

CONCRETE AND R.C. WORKS

7.1

Lean concrete

7.1.1

Bedding lean concrete

2

3

(m - m )

(Code list AAO8..) (Code list AA08AA…)

2

(m )

The surface area of bedding lean concrete with thickness upto 10 cm is conventionally considered to be the same as the concrete foundation area, regardless of the lean concrete surface area actually executed, unless otherwise quoted on the drawings issued for construction. However the lean concrete layer shall extend a minimum of 100 mm beyond all concrete edge. d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


The surface area shall be paid conventionally considering as the same of concrete foundation area. The limited section excavation shall be paid as per conventionally area. (see par. 3.3.a) The piles surface area shall not be deducted.

7.1.2

Other lean concrete

3

(m )

The concrete volume is to be calculated on the basis of the dimensions indicated on drawings issued for construction. The concrete volume for Electrical/Instrumental bundle shall be considered as net volume. (Pipes volume shall be deducted)

7.2

Concrete foundation

7.2.1

Definition

3

(m )

(codes AA08AB..)

Foundation is any concrete work with a maximum elevation up to 60 cm, above PTS (prepared top soil) of the area, for supporting steel structures, vessels, pipes, cables trays, tanks, equipments. Foundation is also considered any concrete work for supporting machineries (compressors, extruders, pumps, etc.) even with elevation more than 60 cm above PTS. See examples shown in ANNEXES 10, 10.1, 10.2, 10.3, 10.4, 10.5, and 10.6

7.2.2

Volume Calculation The foundation concrete volume is to be calculated on the basis of the dimensions indicated in construction drawings. The volume of embedded items, anchor bolts and anchor bolts sleeves are not to be deducted The volume of embedded pipes, ducts, etc., up to 15 cm, diameter or equivalent individual surface is not to be deducted from the calculation of the concrete volume of the relative foundation.

TM 930.1/04E


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Elevated concrete

7.3.1

Definition

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7.3

14

3

(m )

(Codes AA08AD…)

An elevated concrete is any concrete starting from the first offset of the foundation mat, not included in the previous para 7.2, see examples shown on in ANNEXES 10, 10.1, 10.2, 10.3, 10.4, 10.5, 10.6

7.3.2 d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


Volume Calculation

The elevated concrete volume is to be calculated on the basis of the dimensions indicated in construction drawings. The volumes of embedded items, anchor bolts and anchor bolts sleeves are not to be deducted. The volume of embedded pipes, ducts, etc., up to 15 cm, diameter or equivalent individual surface is not to be deducted from the calculation of the concrete volume of the relative elevated structure.

7.4

Concrete ground floor paving

3

(m )

(Codes AA08AG…)

The surface area of floor paving is to be calculated on the basis of the dimensions shown in construction drawings. 2

Blank concrete areas having individual surface area smaller than 1 m are not to be deducted when calculating the surface of ground floor paving. The concrete volume of this work is to be calculated on the basis of the surface paving area multiplied by the average height of the concrete shown in the construction drawings. The reinforcement is to be accounted for separately. Formation of paving joints and its sealing is included in concrete paving price according to TM 909.1, excluded isolation joints only. The formworks are included in the unit price of concrete paving.

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8.

FORMWORKS AND BOXES FOR ANCHOR BOLTS.

8.1

Formwork

2

(m )

(Code list AA09)

(Codes AA09A.., AA09C..)

The formwork surface area to be considered is the formwork surface wetted by the concrete to be cast, that is to be calculated by the dimensions shown in construction drawings. The surface area of boxes for anchor bolts is not to be accounted for the calculation of formwork surface unless otherwise specified in contractual documents. No allowance shall be made for overlaps and passing at angle and no deduction shall be made for 2 opening not exceeding 0.25 m each. d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


8.2

Boxes for anchor bolts

(N.)

(Code AA09B..)

The anchor bolts boxes shall be accounted for per number. The code list rate shall be based on a wet contour area of each box shown in the construction drawings.

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REINFORCEMENTS

a)



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9.

TM 930.1/04E

(Kg)

(Code list AA10..)

The reinforcement steel weight is to be calculated on the basis of steel bar theoretical weight for unit length of each diameter (see enclosed table ANNEX 11) multiplied by reinforcement total length resulting from construction drawing bar bending schedule. The weight of electrowelded steel mesh is to be calculated on the basis of theoretical weight, by square meter, multiplied by surface laying area as indicated on construction drawing bar bending schedule. The overlapping shall not be accounted, but it shall be included in the unit price, The nominal dimension of deformed bar is equivalent to that of a plain round bar having the same weight per meter as the deformed bar. (See enclosed ANNEX 11) Scraps and waste reinforcement are not to be accounted for. Spacers, blocks, chairs, binding wires, etc., are not to be accounted for.

b)

In case of plain and deformed steel bar and/or welded wire fabric reinforcement supplied by CONTRACTOR, the allowance weight of scraps for each diameter shall not exceed 15% of the total weight of reinforcement to be installed according to the drawings issued for construction. The SUBCONTRACTOR shall be backcharged for any unjustified greater allowance. In any case, the quantity to be accounted for is relevant to reinforcement shown in the drawings.

Any overlaps made by convenience, easily execution, etc. are at SUBCONTRACTOR care.

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10.

ANCHOR BOLTS AND EMBEDDED WORKS

10.1

Anchor bolt

10.1.1.

Supply

(Kg - N.)

(Code list AA11..)

(Code AA11A..)

(kg):

The anchor bolts weight calculation is to be made according to theoretical weight, shown in CONTRACTOR specification (TM 903.10 standard) multiplied by number of anchor bolts indicated on drawing issued for construction. The nuts and washer weight shall not be accounted but it shall be included into unit price.



In case the dimensions of the anchor bolts, indicated in the construction drawings, do not correspond to TM 903.10, the relevant weight is to be the theoretical one, taking into account the 3 specific weight of steel (7.85 kg/dm ). The nuts and washer weight shall not be accounted but it shall be included into unit price.

10.1.2.

Installation

(No.)

The “unit” of measurement to be used for quantity calculation is the “number” divided in-groups of diameters.

10.2

Embedded items

(Kg)

(Code AA11B..)

10.2.1.

Steel plates – supply and/or installation

(kg)

The weight to be considered is as follows:

10.2.2.

a)

For steel plates, according to specification TM 905.06, the relevant weight is indicated in the above TM.

b)

For steel plates not in according to TM 905.06, the relevant weight is to be calculated using the dimensions shown in construction drawing multiplied by the specific conventional weight 3 of steel (7.85 kg/dm )

Minor steel sections - supply and/or installation

(kg)

The weight is to be calculated on the basis of the conventional unit length weight of each shape, multiplied by the total length indicated on construction drawings taken along its axes The weight of the relevant welded rods is not to be accounted for. 10.2.3.

Steel pipes – supply and/or installation

(kg)

The weight is to be calculated on the basis of the conventional unit length weight of each diameter and schedule type, multiplied by the total length measured along the axes, corner to corner as shown in construction drawings. 10.2.4.

Non steel pipes

(m)

The length is to be calculated on the basis of the measuring along the axes, corner to corner as shown in construction drawings.

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11.

GROUTING

18

(m3)

(Codes AA12A…)

The volume of grouting is to be calculated on the basis of the grouting dimensions indicated in construction drawings, regardless of the actual volume of grouting executed. The volume of any embedded item (anchor bolts, plates, etc.) is not to be deducted. The volume of grouting for anchor bolts sleeves is not to be accounted for. The anchor bolts pocket volume is to be accounted for. The contour finishing (45° slope) and sealing shall be included in unit price. d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


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GEOTEXTILE SHEET, GEOMEMBRANES, WATERPROOFING AND THERMAL AND 2 ACOUSTICAL INSULATION (m ) (Codes AA07.., AA16.., AA21..) The surface area is to be calculated on the basis of the dimensions, indicated in the drawings issued for construction, relevant to the surface to be protected, regardless of the actual executed surface protected. Waterproofing, vapour barriers and insulation layer, if any, are to be evaluated by taking into account the above criteria.



The non-waterproofed surfaces as openings, holes, foundations, etc. , having individual surface 2 area smaller than 0.25 m are not to be deducted. Any accessory work and charge necessary for the work completeness is included in the unit price (Example: caulking material, metallic or plastic stop strips, cap flashing for protecting and fixing the waterproofing edges, vents, etc.).

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13.

20

FIREPROOFING

(m2)

(Code list AA17..)

The fireproofing surface area evaluation method should follow the subsequent criteria. The surface to be considered is the external surface of fireproofing as resulting from multiplying the height or length of the involved item by the external design fireproofing perimeter.

Where is considered for: a) d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b

b)

-

Length of beam if measured centre to centre line of supports.

-

Height of columns is measured from the bottom of base plate to the top of fireproofing.

-

The external perimeter shall be considered as per ANNEX 12 and 12.1, in two ways: Box shape up to 300 mm. and contour shape above 300 mm.

Skirts or support of vessels (See ANNEXES 12.2): -

c) e r e e n o s i s z e a z z ò i u r o p t n u o a n a v e i t t n n e o v e m r i p n c a e z T n i e d s i à t z e r i e r t p o a r p d o è d o o m t n n e u c m u l c a n o i d o t o a t s z z e l i u i t Q u

Structural steel structures (See ANNEXES 12, 12.1) :

Height is measured from the lower face of steel base to the top of fireproofing.

The surface area so achieved includes any overthickness due to the anchor bolts of baseplates, for plates and bolts connections of beams, columns, braces, etc.

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14.

21

MASONRY WORKS (external wall and partition) 2 (m ) (Codes list AA18…, AA20….) Shall be considered any type of internal or external masonry and/or partition. The surface area is to be calculated on the basis of the dimensions indicated in construction drawings. 2

Openings and holes, having individual surface area smaller than 1,00 m are not to be deducted when calculating masonry surface area. All the reinforced concrete works, such as lintels, buttress, etc. shall not be accounted, but they shall be included into unit price. d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


All the Charge for worked scraps and waste, joints and sealing are not to be accounted for.

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PLASTERING AND FINISHING COATS

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15.

22

(m2)

(Code list AA24..)

The plaster surface area is to be calculated on the basis of the dimensions dimensions indicated in construction drawings. 2

Openings and holes, having individual surface area smaller than 1,00 m are not to be deducted in the calculation of plastered surface area, that compensate the reveals execution, etc. The plaster surface area of vaults and arches is to be calculated by multiplying its horizontal projections projections by 1,2 times. d t e n e s s u n e o b c t o n e n t n t i a r c w d r n o a i r y p t r t e u p o o r h t p i w s ’ t e n s o o m p i r n u c p e T y s n i a t n r o e f m u s r c e o d h t o s i h y T b


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FLOOR – WALL LININGS

16.1

Floor and wall linings

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23

(m2) (m2)

(Code list AA26…, AA27…) (Codes AA26.., AA27..)

The surface area of floor and wall linings is to be calculated on the basis of the dimensions indicated in the construction drawings. 2

Openings, holes and blank areas having individual surface smaller than 1,00 m are not to be deducted. The scraps of floor and wall lining due to cut for slope line, corner, edge, etc. are included in the unit price. d t e n e s s u n e o b c t o n e n t n t i a r c w d r n o a i r y p t r t e u p o o r h t p i w s ’ t e n s o o m p i r n u c p e T y s n i a t n r o e f m u s r c e o d h t o s i h y T b

16.2

Removable floor

2

(m )

(Code AA26CD…)

The removable floor (also called pedestal floor, false paving etc.) surface area to be considered, is the surface covered by the false paving, having the surface finishing and dimensions, as shown in construction drawings. 2

Holes and voids in the false paving having individual surface area smaller than 1.00 m are not to be deducted, to compensate for the major charges due to adjustments and cut-off of the base frame and panels.

All the Charge Charge for worked scraps and waste are not to be accounted accounted for. e r e e n o s i s z e a z z ò i u r o p t n u o a n a v i e t t n e n v o e r m p i n c a e z T n i e d s i à t z r e e i r t p o r a p d o è d o o m t n n e u c m u l c a n o i d o t o a t s z z e i l i u t Q u

The skirting board is included in the false paving unit price. See ANNEX 13.

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FALSE CEILING

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TM 930.1/04E

(m2)

(Code list AA28…)

The false ceiling surface area is to be calculated on the basis of the dimensions indicated in the construction drawings without any deduction for blank areas due to the presence of column or items 2 crossing it having individual surface area smaller than 1.00 m . The charge for scraps and cuts due to any openings, holes and void spaces (i.e. air conditioning diffusers, electrical fixtures, etc.) and the relevant adjustment of frame, if necessary, are included in the false ceiling unit price. The electrical fixtures, if any, are accounted for separately. d t e n e s s u n e o b c t o n e n t n t i a r c w d r n o a i r y p t r t e u p o o r h t p i w s ’ t e n s o o m p i r n u c p e T y s n i a t n r o e f m u s r c e o d h t o s i h y T b


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18.


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DOOR - WINDOW - SHUTTERING - LOUVER - GLAZING 2 (m ) (Codes AA31…, AA32…, AA33…, AA35…) The “unit” of measurement to be used for quantity calculation of these works regardless of the 2 manufactured material, is the m .



The surface area of single element, to be calculated, is obtain multiply the length per height, using the dimensions shown on CONTRACTOR "doors & windows schedule" drawings issued for construction. In absence of doors & windows schedule drawings shall be considered the following: • For openable element is always considered the net opening For fixed element is always considered the frame axis • All the accessory works and ancillary items necessary for doors, windows, shutterings, louvers and glazings installation completeness are included in the previously calculated surface area.

All the Charge for worked scraps and waste are not to be accounted for.

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19.

GUTTERS, FLASHINGS AND DOWNSPOUTS

19.1

Gutter and flashing

(Kg)

(Code list AA34…)

(Code AA34AA…, AA34BA…)

The “unit” of measurement to be used for caps ridge, flashing, gutter, downspout, roof rainwater out-let etc. made by metal sheets (aluminium, copper, zinc, lead, etc.) is the Kg. The weight is to be calculated on the basis of dimension indicated on construction drawings, multiplied by the conventional weight of each material,

19.2 d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


Downspouts

(m - Kg)

(Code AA34AB…, AA34BB…)

The “unit” of measurement to be used for downspouts is the following: a)

Supply:

-

kg

for downspout made by metal sheets (aluminium, copper, zinc, lead, etc. The weight is to be calculated on the basis of the length dimension indicated on construction drawings, multiplied by the conventional weight (Kg/m) of each material, The weight of anchorage items and/or accessory shall not be accounted but shall be included in the unit price.

-

m

for downspout made by plastic pipes (PVC, PP, etc.), fibber cement pipes The charge for anchorage items and/or accessory shell not be accounted but shall be included in the unit price. The total length is to be calculated on the basis of the downspouts length, indicated on construction drawings, measured along the axes

b)

Erection:

-

m

for downspout made by metal sheets and plastic pipes, fibber cement pipes.

The quantity shall be accounted as indicated in `point a)

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PAINTING OF WALLS

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20.

TM 930.1/04E

(m2)

(Code list AA36…)

The surface area of painting works (walls, ceilings, paving, etc.) is to be calculated on the basis of the dimensions indicated in construction drawings. Openings, holes and blank areas having individual surface area smaller than 1.00 m2 is not to be deducted to compensate the charges for the relevant reveals, etc. painting execution.



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21.

ROADS AND YARDS WORKS

21.1

Roads/yards

(Code list AA50…)

(Codes AA50AA…, AA50AB…, AA50AC…, AA50BA…, AA50BC)

The quantity calculation of volume and surface area to be accounted for is to be made on the basis of the dimensions indicated in the construction drawings regardless of the actual executed quantity, taking into consideration the following methods of measurement:



21.2

3

a)

Excavation (m ):

calculation as per applicable para 3 or 5 of this “Methods of Measurement”

b)

Embankment (m ):

c)

Subbase/base 3 course (m )

3

:

calculation as per applicable para 8 of this “Methods of Measurement”

the volume is obtained by the average of the surface area of the sections (a1…a2…a3…etc.) multiplied by the distance measured along the axes, between the considered sections (a1…a2…a3…etc.). The surface area of the sections is to be calculated on the basis of the dimensions indicated in construction drawings. The volumes of road catch basins and inspection pits, if any, are not to be deducted.

d)

Binder / wearing course 2 asphalt concrete (m ): the surface area is to be calculated on the basis of the width and the length measured along the axes indicated on the construction drawings.

f)

Road kerb (m) :

Finishing of unpaved areas

the length of road kerb is to be calculated on the basis of the dimensions shown in construction drawings. Any necessary work for kerbs installation as excavation, bedding and side support concrete, sealing, etc. are not to be accounted for.

(m2)

(Code AA50BB…)

The surface area of final soil arrangement, as grading, gravelling etc. is to be calculated on the basis of the dimensions indicated in the drawings issued for construction. 2

The areas without soil arrangement of individual surface smaller than 3,00 m are not to be deducted.

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22

STEEL STRUCTURES – METAL SHEETS, SIDING ROOFING AND FLOORING (Code list AI30…)

22.1

Steel structures

(Kg)

The method of measurement of "Theoretical weight" for the supply and erection of steel work such as beams, columns, stairs, ladders, walkways, handrails, gratings, chequered plates, and other ancillary works, shall be as per the following criteria based on erection drawings: a)

Length of beams and bracings taken from centre to centre line of supports, multiplied by the theoretical conventional weight per unit length (Kg/m) of relevant sections



Main and secondary steel structures:

Height of columns measured between the underneath face of the base plate and the top of column multiplied by the theoretical conventional weight per unit length (Kg/m) of relevant sections. Any ancillary materials such as gussets, plates, all connection items for structural joints (flanges, gussets, bolts, expansion bolts, weldings, all equipment anchorings bolts, etc.) necessary for fabrication and erection completeness are not to be accounted for. The weight of these materials shall be included in unit price. However all these materials, to be installed, must be supplied free of charge, including 5% of surplus of any type and length of bolts. The only plates to be taken into account shall be the base plates of columns. These base plates, quoted on erection drawings, are to be calculated on the basis of the 3 actual dimensions multiplied by the specific weight of steel (7.85 kg/dm )

b)

Handrail (according to TM 914.11):

The handrail theoretical weight is to be calculated on the basis of the length measured along the axis of supporting beams multiplied by the all-in weight (Kg/m) of handrail and toeplate. The weight is indicated in the TM 914.11.

c)

Ladder (according to TM 914.8): The theoretical weight of ladder is to be calculated on the basis of the length of ladder and guard cage (if any) shown in the erection drawings multiplied by the relevant all-in weight (kg/m) of ladder and guard cage. The weight is indicated in the TM 914.8.

d)

Grating (according to TM 914.4): The theoretical weight of grating is to be calculated on the basis of the theoretical surface area as resulting from the dimensions measured, with reference to the centerline of supporting 2 beams shown in erection drawings, multiplied by the weight (Kg/m ) indicated in the TM 914.4 of the used type. 2

The holes having individual surface area less than 1.00 m are not to be deducted.

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e)

30

Stair tread (according to TM 914.9): Supply:



-

The theoretical weight of grating stair tread shall be accounted multiplying the surface by the square unit weight of grating. Edge, fixing items shall not be accounted but included into unit price

-

The weight of stair tread, made of any type of metal sheet, is to be calculated using its surface dimensions, shown in erection drawing, multiplied by the specific conventional weight of steel (7.85 kg/dm3). Edge, fixing items shall not be accounted but included into unit price

Installation:

-

f)

The stair tread installation is to be calculated per “number”.

Chequered and buckled plate (according to TM 914.3): The theoretical weight of chequered/buckled plates is to be calculated on the basis of the theoretical surface area as resulting from the dimensions measured with reference to the 2 centerline of supporting beams shown in erection drawings, multiplied by the weight (Kg/m ) indicated in the TM 914.3 of the used type. The holes having individual surface area less than 2 1.00 m are not to be deducted.

22.2

SIDING , ROOFING AND FLOORING

2

(m )

(Code AI30…)

The surface area calculation of these works is to be made according to the dimensions indicated in erection and/or construction drawings (any overlap is not to be accounted for). 2

Opening / hole having individual surface area smaller than 1,00 m is not to be deducted. All the relevant flashing of any type is included in the roof and side sheeting unit price.

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ELECTRIC INSTALLATION FOR “CIVIL BUILDING” (LUMP SUM) (Code list AN41…) The lighting system supply and installation is to be evaluated on “lump sum” on the basis of the type and quantity of any component, belonging to this system, indicated on drawings and/or in technical specifications annex to Work Requisition.



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24.

TM 930.1/04E

UNDERGROUND EARTHING SYSTEM

(code list AQ42….)

The quantity of the components belonging to the earthing system work (TM 708.1 – 708.6 – 708.7 – 708.8 - 773.3) are to be calculated on the basis number and dimensions indicated on construction drawings, taking into consideration the following criteria for each item:

1.



Earthing conductors installation

(m):

The length to be accounted for is to be calculated according to the dimensions obtained from the earthing system layout and CONTRACTOR documents regardless of the actual installed length. 2.

Earthing connectors installation

(N.):

the quantity of connector to be accounted for is the quantity shown in construction drawings regardless of the actually installed quantity. All fixing accessories, if any, are included in unit price 3.

Pipe for earthing conductor protection

(N.) :

The quantity of pipes to be accounted for is the quantity shown in construction drawings including the fastening of pipes to the structural concrete supports. 4.

Earthing rod and bars

(N) :

The quantity of earthing rod and bar is to be calculated by the number of earthing rod and bar shown in construction drawings, fixing of the relevant earthing conductors to the rod are included.

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25.

UNDERGROUND SEWER AND PIPING SYSTEMS

(Code list AQ49)

25.1

Concrete, gres and plastic piping system (m) (Codes AQ49AA…, AQ49AB…, AQ49AC…, AQ49AD…, AQ49AE..) The “unit’ of measurement to be used for quantity calculation of these works is the linear meter. The length is to be calculated by the following measuring criteria:



25.2

A)

Conventional length of the line shall be determined by summing the straight lengths by the construction drawings of every diameter measured from one angle to another along the piping centerline (corner to corner), without taking in to consideration the actual development of special pieces such as elbows, T, etc.

B)

The piping interruption due to the presence, along the piping centerline, of valves, meters, etc. and any type of sum pits up to internal dimension of 1.30 m as a maximum shall not be deducted.

Steel piping system

(kg)

(Codes AQ49AF.., AQ49AH..)

The “unit” of measurement to be used for quantities calculation of the materials, such as pipes, valves, meter, etc., belonging to this work is the “kg”. a)

Pipe: the weight of piping is to be obtained by multiplying the straight length, measured in construction drawings from one angle to another along the piping centerline (corner to corner), for every diameter and class of pipe, by the relevant theoretical conventional weight per unit length. (Net weight excluding any type of coating) Piping interruption due to the presence of valves, meters, etc. are not to be deducted.

b)

Piping special pieces such as elbows, T, reductions, etc. are considered as pipe.

c)

Valves, flanges, meters etc.: the weights of these items are the conventional theoretical weight of every diameter and class according to the Manufacturer’s documents.

d)

Connection bolts, gaskets, etc. are not to be accounted for.

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26.

TM 930.1/04E

(Lump Sump)

(Code list AZ43…)

The HVAC system installation is to be evaluated on “Lump Sum” on the basis of type and quantity of any components belonging to this system, indicated on construction drawings, bill of quantities, specifications and standards. Including all civil works services relevant to execution of holes, fixing of steel supports, restoration of plastering, sealing of holes, etc.



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27.

35

PAINTING OF WOODEN AND STEEL WORKS

(Code list AW37…)

The painting surface area to be accounted for is to be calculated as follows: A)

Doors, main doors, glazed doors and equivalent: Two times the surface area as resulting from multiplying the clear width by the clear height indicated in construction drawings. The surface area of glazings is not to be deducted. Painting surface area of the relevant embedded heelposts, frames, borderings, etc. is not to be accounted for.


B)


D)

Windows, glazed frames and equivalent: One time the surface area as resulting from multiplying the clear width by the clear height indicated in construction drawings. Painting surface of the relevant embedded frames and accessory is not to be accounted for. 2

If the individual clear surface area of glasses is less than 0.50 m , the resulting surface area is to be multiplied two times. C)

Shuttering (roller shutters, venetian blind, etc.), louvers Two and a half time, the surface area as resulting from multiplying the clear width by the clear height indicated in construction drawings. The painting surface areas due to the relevant shutter box, embedded frame, roller shutter guides and any other accessory items are not to be accounted for. Radiators (any type) Two and half time the surface area as resulting from multiplying the width by the height of the minimum rectangle or square circumscribing the radiator. The painting of accessories (supports, etc.) which are parts of the radiator is not to be accounted for.

E)

Windows gates, bars gates, grills and nets One time the surface area resulting from multiplying the clear width by the clear height or the top of items shown in construction drawings.

F)

Parapets – handrails One time the surface area resulting from multiplying the length measured along the axis between the first and last post by the height measured from the walking elevation to the top of parapet.

G)

Rung Ladders One time the surface areas of the rung ladders and safety cage (if any) as resulting from multiplying the width of rung ladder by the height plus the development of cage multiplied by the height indicated in construction drawings.

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H)

Corrugated sheets One time the surface area of each painted face as resulting from multiplying the clear length by the section development of sheets shown on construction drawings. Openings and holes 2 having individual surface less than 1 m are not to be deducted.

I)

Chequered, buckled plate One time the surface is of each painted area as resulting from multiplying the clear width and length indicated in construction drawings. Openings and holes having individual surface less 2 than 1 m are not to be deducted. Painting of bordering up to 10 cm height of the above holes and openings are not to be accounted for.


L)

Lath plates Two and half times the surface area as resulting from multiplying the clear width and length indicated in construction drawings. Openings and holes having individual surface less than 1 2 m are not to be deducted. Painting of borderings up to 10 cm height of the above openings and holes are not to be accounted for.

27.1

Pipes Measurement of piping surfaces:


a)

When calculating the surface, both the external diameter and the conventional length of the line shall be considered as indicated in construction drawings.

b)

The conventional length of the line shall be determined by summing the various straight lengths “L”, to be measured from one angle to another on the piping centerline (“corner to corner” length), without taking the actual development of elbows and the presence of components like valves, meters, etc. into account (See Annex 14) ;

c)

When calculating the surfaces, reducers shall be conventionally regarded as equal to the pipe having the greatest diameter;

d)

Piping brackets, such as bolted clamps, U-bolts and other minor accessories, such as rollers, guides, etc., shall not involve any increase in surface.

Conventional surface addition -

For lines > NPS 2 a conventional surface corresponding to 2 m pipe for each valve, flowmeter, meter and expansion joint to be painted, provided on same line, shall be added to the surface calculated in compliance with provisions of point 7.b.

-

For lines ≤ NPS 2, no conventional surface addition shall be considered for components either painted or to be painted provided in the line.

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Measuring criteria – Typical example S = 3, 14 x [D1 x l1 + D2 (L2.1 + L2.2) + D3 x L3] 2 (m )

Where: S = Surface D1-D2-D3 = External diameter (m) of a line section L1-L2-L3 = Length (m) of a line section d t e n s e u s n e o b c t o n e n t t n i a r c w d r n o a i r y p t r t e u p o o r h t p i s w ’ t n e o s o m p i r n u c p e T y s n i a t n r o e f m u s c r e o h d t s o i h y T b


Note: Typical installations as pressure plugs, temperature plugs, vents, drains, etc. must not be considered.

27.2

Steel structures

2

(m )

The painting surface area of steel structures is to be calculated by multiplying the length of beams, columns and bracings shown on construction drawings measured at centre to centre of relative supports by theoretical perimeter of each section. Connection plates, connection angles, gussets, bolts are not to be accounted for.

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TM930!1!04E Methods of Measurements

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