Enhancing Productivity & Professionalism”The Bill of Quantities shall be read in conjunction with the Instructions to Bidders, Conditions of Contract, Technical Specifications, and

k]g,gHd,'l)uj,jbus,< blh,pIjh,g~d,wj< g;,hUg,gh,wysh< Royal Government of Bhutan

Ministry of Works & Human Settlement

Department of Roads

Bridge Division

“Enhancing Productivity & Professionalism”

Section IX: Bill of Quantities

Name of the Work:

Construction of Dzongkhaluma Steel Composite Bridge

on Trongsa – Gelephu Highway

Contract Ref. No.:

DoR/BD/CE(B)/29/2012-13/264 dated 7th March 2013

Date of Issue: March 2013

BoQ

a)

b)

c)

d)

e)

PREAMBLE

The Bill of Quantities shall be read in conjunction with the Instructions to Bidders, Conditionsof Contract, Technical Specifications, and Drawings.

The quantities given in the Bill of Quantities are estimated and provisional, and are given toprovide a common basis for bidding. The basis of payment will be the actual quantities of workordered and carried out, as measured by the Contractor and the Employer’s Representativejointly and valued at the rates and prices tendered in the priced Bill of Quantities, whereapplicable, and otherwise at such rates and prices as the Engineer may fix within the terms of theContract.

The rates and prices tendered in the priced Bill of Quantities shall, except insofar as it isotherwise provided under the Contract, include all construction plant, labour, supervision,materials, erection, maintenance, insurance, profit, taxes and duties, together with all generalrisks, liabilities and obligations set out or implied in the Contract.

The rates and prices shall be quoted entirely in Ngultrum.

A rate or price shall be entered against each item in the Bill of Quantities, whether quantities arestated or not. The cost of Items against which the Contractor has failed to enter a rate or priceh ll b d d b d b h d i d i h Bill f Q i i

Dzongkhaluma Brigde on Trongsa - Gelephu Highway Page - 1

f)

g)

h)

i)

General directions and descriptions of work and materials are not necessarily repeated orsummarized in the Bill of Quantities. References to the relevant sections of the contractdocumentation shall be made before entering rates or prices against each item in the Bill ofQuantities.

The method of measurement of completed work for payment shall be in accordance with thecontract documentation.

Errors will be corrected by the Employer for any arithmetic errors pursuant to Clause 27 of theInstructions to Bidders.

shall be deemed to be covered by other rates and prices entered in the Bill of Quantities.

The whole cost of complying with the provisions of the Contract shall be included in the itemsprovided in the priced Bill of Quantities, and where no Items are provided the cost shall bedeemed to be distributed among the rates and prices entered for the related Items of Work.

Dzongkhaluma Brigde on Trongsa - Gelephu Highway Page - 1

BoQ

SN Type of work Total Cost (Nu)

1 Method of Measurement and Site Installation

2 Site Clearance and Earthworks

3 Reinforced Concrete, formworks and other involved works

4 Steel Work, temporary steelwork, steel structure and corrosion protection

"Summary of cost"

Total Cost

Dzongkhaluma Bridge on Trongsa - Gelephu Highway Page - 2

Total cost (in words): _______________________________________

___________________________________________________________

Total Cost


BoQ

Rate Amount(Nu) (Nu)

Method of Measurement:1 1001 Description

The descriptions identify the work covered by the respective items, but the exact nature and extent of the work is to be ascertained from the Drawings, Specifications and Condition of Contact, as the case may be, read in conjunction with the Work Classification.

2 1002 Quantities

The quantities shall be computed net using dimensions from the drawing, unless directed otherwise by the client. No allowance shall be made for bulking, shrinkage or waste. No other type, terms or regulation for computing the

Type of Works : 1000. Method of Measurement and Site Installation

Sl.No Code Description of item Unit Quantity

quantities will be used and accepted. For any kind of work and item, the net dimension will be used for computing the quantities. Quantities may be rounded up or down where appropriate. Fractional quantities are not generally necessary. If considered, such quantities shall be rounded off to two places of decimals.

3 1003 Unit of measurementThe following units of measurement and abbreviations shall be used.Unit and Abbreviation:Millimeter = mmMeter = mSquare millimeter = mm 2

Square meter = m 2

Hectare = haCubic meter = m 3

Kilogram = kgTone = tSum = sumNumber = noHour = hrWeek = wk (7 days)


BoQ




4 1004 Site Installation (facilities, tools, plant, equipment and so forth):

For all items and descriptions, the relevant and enclosed drawings are an integral part of this bill of quantities. The contractor has to prepare a site installation plan and submit to the client for approval. The approved site installations plan has to be implemented. Any change to the installation plan and to the contract documents by the contractor and/or subcontractor has to be approved by the client. In addition all terms and condition of contract have to be fulfilled. It is understood, that the building site is an area within a range of 5 km around the bridge.

The contractor shall be deemed to have made himself fully acquainted with the full nature of the work, the location and character of the site and means of access to the site, including any traffic restrictions imposed.

All the necessary infrastructures at site required to support the successful completion of the bridge are a part of the site installation. The infrastructures shall include bridge site access roads, contractor's yard, site office, labor camps, stores, toilets, water and electricity supply facilities and so forth.

As a part of the site installation, the contractor has to fulfill the following to be eligible for the payment:-


BoQ




a) SITE OFFICE: A site office with sufficient space for the engineers and work supervisors to work comfortably. The site office should also house a meeting room to accommodate more than six persons. The site office has to be furnished with required number of tables, chairs and other necessary amenities. The site office shall have at least bamboo mat wall, concrete/timber flooring and CGI roof.

b) LABOR CAMP; Sufficient number of labor camps shall be built and maintained by the contractor so that the laborers can live reasonably comfortably. The labour camps shall f y phave at least bamboo mat wall, concrete/timber floor and CGI Roof. The labor camps shall be supplied with adequate drinking water and electricity supply. So that there is proper sanitation and hygiene at site, appropriate type and number of toilets and other sanitary facilities such as drains etc. shall be built and maintained by the contractor throughout the project period .

c) WASTE MANAGEMENT: The contractor shall establish proper wastage management system at site for proper handling/disposal of the construction and other wastes produced as a result of the construction activities.

d) CONSTRUCTION SHED, STORES ETC.:- All the construction materials shall be stored well under properly built sheds to avoid quality drops and loss.


BoQ




e) The contractor shall build no infrastructure without prior approval of the client. The client shall inspect the contractor's site infrastructure and give instructions. These instructions are binding and shall be strictly implemented by the contractor.

f) The contractor shall make his own connections for water and electric supply and energy, if any, and pay for it.

g) The Contractor cannot use the infrastructure like telephone, fax, photocopies, etc. of the Client. The contractor has to set up his own equipments.

h) After completion of the works, the contractor shall clear and remove from the site all tools and plants, surplus materials, rubbish, garbage, temporary constructions, and temporary work of every kind and leave the whole site clean and to satisfaction of the client. The site area of the camp, storage area, access road and so forth shall be rebuilt and brought into the same shape, state and condition as before starting the work. The contractor is not allowed to dispose anything into the river.

i) Clearance of the site shall be done as per the instructions of the client. Clearings may have to be done during construction period and at the end of the phased construction tasks. The final clearance shall be completed within the contract period.


BoQ




5 1005 Material + protection

The contractor shall build sufficient shelter buildings, that all material can be stored without being exposed to the rain and hot sun. The materials have to be protected. The contactor has to secure the site installation place with an adequate fence and security system.

6 1006 Tools and plants

The contractor shall supply and provide all materials, plants, equipment, spare parts whatsoever to execute the works in accordance with the contract and all descriptions in the bill of quantities.

The contractor has to provide sufficient spare parts and equipment, that the work can be executed without delay. The tools and plants to erect all temporary building and scaffolding have to be on site. Tools, equipment and plant have to be provided in sufficient numbers and in good working condition. The contractor is responsible for the maintenance. The client reserves the right to stop on-going work in case tools and plats are not meeting the requirement and/or are in unsafe condition.

The concrete must be made by preferably using concrete batching plant. But use of concrete mixer machine would also be permitted provided the desired quality of the mix is can be produced. The contractor shall provide a concrete mixer machine in sufficient nos at the bridge construction site, which can cover a concreting up to 70 m 3 in a day.


BoQ




The concrete must be compacted using mechanical concrete vibrators. Spare immersion needles of different diameters have to be available at site at all times.

It may be necessary to pump the water for construction works from the river. The necessary capacity has to be obtained by the pumps. Spare pumps and hoses have to be at site. The required water tanks have to be built up.

As the natural coarse aggregate/coarse gravel has to be washed after crushing. Sufficient water has to be available. The water pumps have to be designed accordingly.

7 10077 1007 As a part of site installation, the Contractor shall maintain at the construction site office at east the following testing equipment at all times during the construction period:-

i) Concrete cube testing machine 1 No (optional)

ii) Sieves of all sizes 1 Setiv) Slump cone 1 Nov) Standard concrete cube moulds (at least

9 nos)vi) Flakiness& Elongation Gauge 1 No

The above equipment will be the property of the Contractor at the end of the Project and hence the Contractor is expected to quote only the hire charge rate/percentage cost and not as a new purchase.


BoQ




8 1008

It is understood that in the cost of the site installation, all costs for facilities, tools, plant, equipment have to be included. In addition to these costs, it should also include the salary for Contractor’s engineers, cost of all risk insurance of works and so forth. All risk insurance of the works (ongoing and completed), plants & materials shall also cover the labor and personnel working at the project site against injury and death. The modalities for the insurance shall be as per the stipulations under "Insurance" in the General Conditions of Contract (GCC). By signing the contract, the Contractor confirms that all efforts and costs to fulfill the task are included in his

H k f ddi i lrates. He agrees not to ask for additional payment.

9 1009 VariousAll the above scope of work have to be included in the site installation and the contractor is not eligible for payment for site installation unless all the scopes of works under it are completed in full. While 80% of the site installation cost can be paid upon successful completion of the site installation works, the remaining 20% shall be released only after the final clearance works towards the end of the project period.

l.s. 1.00

Total 1000: Method of Measurement & Site Installation


BoQ


10 2001

The contractor shall be deemed to have made himself fully acquainted with the full nature & complexity of the work, the location and character of the site and means of access to the site.

11 2002

The rates and work descriptions have to include all activities and all costs necessary to complete the work. The erecting, use and dismantling of necessary working platforms, scaffolding and related structures have to be included in the rates. Construction of coffer dams, guide bunds, sheet piles etc. if required for diversion of the river in order to get the working space or to control seepage during excavation shall also be included in the rates. The

Type of Work: 2000. Site Clearance & Earthworks

Code Description of item Unit QuantitySl.No

relevant drawings are an integral part of these tender documents. The contractor has to study all drawings in detail. By submitting the tender, the contractor is declaring that he/she has understood the drawings and all the works involved and is prepared to complete all construction work in a competent manner. Only the highest degree of accuracy and quality will be accepted.

12 2003

The Contractor confirms also to be fully aware of the soil condition. He/she agrees not to ask for additional payments due to changed soil conditions.

The word "soil" in this context refers to all types of soil, earth, rock, stone, sand, boulders, gneiss, clay, gravels, mica schist and so on. In other words, the rate quoted for the soil excavation shall apply for all the excavation materials; soil, earth, rock - hard and/or soft, requiring or not requiring blasting.


BoQ




Irrespective of the type of excavation material, the contractor shall be paid at the same rate - the rate quoted by the contractor for 'soil' excavation. Therefore, while submitting the rates, the contractor has to estimate the proportion of various materials (soil, ordinary rock, hard rock) in the excavation depending on the site condition and quote accordingly. The fact that some of the excavation works will be at the river side, in the river and below the water level will also not justify any increase in the costs. It is important that the contractor does careful study of the site condition prior to submitting the tender.

13 2004

The excavation shall be paid as Solid Volume. Solid volume is the volume of excavation calculated directly from the foundation dimensions of the structure without allowance for bulking, shrinkage, wastage, working space, slope cutting etc. But the contractor has to be aware of the fact that the soil cannot be dug vertically and that additional excavations would be required for getting the working space around the foundations, slope cutting etc. and the contractor has to account for these additional quantities while setting rates for the excavation works.

14 2005

Clearing & grubbing of site including uprooting all vegetation, grass, bush shrubs, saplings and trees of girth up to 300 mm, removal of stumps of trees of girth of all sizes including removing stumps of trees cut earlier and disposal of unserviceable materials and stacking of serviceable materials as directed by Client with all leads and lifts etc. complete.

m2 200.00


BoQ




15 2006

Felling of trees including cutting of trunks and branches, removal of roots, stacking of serviceable materials and disposal of rubbish within 50m lead - girth from 300mm to 600mm.

Nos. 1

Excavation of soil and storing the useful materials close to the abutments and foundations. This materials will be used as backfilling around and behind foundation on both sides. However, the top layer of the soil containing decomposable materials have to be disposed off to necessary leads. The excavation may be below or above water level, which the contractor has to ascertain after studying the site condition and understanding the design drawings. The construction of cofferdam, guide

16 2007 bunds, sheet piles etc. and dewatering using water pumps including energy, loading, offloading and transportation shall be included in the rate. The Client will pay for the soil excavation strictly as a solid volume. All the efforts required for achieving the same as per design requirements have to be included in the rates. The quantity shall be paid as solid volume and as a soil excavation irrespective of the nature and type of soil - sand , gravel, boulder or any type of rock requiring or not requiring blasting.

m3 155.00


BoQ




17 2008

Breaking of hard rocks using controlled blasting and disposal of unusable materials within necessary lead. The blasting operation has to be carried out by skilled blaster and it has to be so controlled that it shouldn't disturb the portion of the bed rock that has to support the abutment. The contractor will be allowed to use the useful materials (if any) from the blasting for the bridge project and therefore the consideration for the same has to be made while setting the rates. The cost for operator of compressor, drill rod and all other efforts required to complete the task has to be included in the rate . The rock excavation shall be paid as solid volume.

m3 230.00

18 2009

Rock anchoring works below abutments. The work involves drilling of minimum 36mm diameter drill holes, placing of the reinforcement (as per design) in the hole and packing it with rich cement mortar 1:1. The reinforcement has to be placed centrally in the hole so that the cement mortar fill the gap uniformly around the reinforcement bar. The depth of the drill holes are shown in the drawing. The reinforcement shall be paid separately. All other efforts and expenses required for completing the task shall be included in the rates.

m 79.20


BoQ




19 2010

Backfilling around and behind the foundations, abutments, and RRM walls and approach roads. Handling, loading, offloading, transportation, watering and all necessary works shall be included in the rate. The back filling shall be done as per the instruction of site engineer and in layers not more than 300mm thick and compacted well with earth rammer or compactor. The Client's site engineer will strictly supervise this to make sure that full compaction is achieved. While the backfilling for the approach roads to the bridge shall be paid as per actual quantity, the backfilling in and around the abutments and the RRM walls shall be paid as solid volume.

m3 220.00

20 2011

Providing and laying coarse gravel (filter layer) behind the abutment & below approach slabs as per drawing. Thickness d=40 cm. The filter materials to be used have to be approved by the client. Handling, loading, offloading, transportation and all necessary work shall be included in the rate.

m3 47.00

Total 2000: Site Clearance & Earthworks


BoQ


21 3001

The formwork shall include all temporary or permanent forms required for forming the concrete of the shape, dimensions and surface finish as shown in the relevant drawings. The cost of the form work shall include effort and expenses for design and providing all props, staging, centering, scaffolding and other temporary constructions required to support the formwork. The removal of the form work after the time specified in the specifications or as directed by the Engineer/Client shall also be included in the rates. The formwork shall be of timber, plywood (only waterproof marine plywood and not ordinary commercial ply) or steel plates. In any case the shuttering has to

Type of Work: 3000. Reinforced Concrete, formworks and other involved works


Sub-structure Works:

impact a smooth finish to the concrete surface. The standard form work oil shall be used to prevent the fresh concrete from sticking to the shuttering board. The use of old/used Mobil oil shall not be permitted.

3001.1 Providing and fixing vertical formwork for abutment and dirt walls m2 201.20

3001.2

Providing and fixing form work for bearing pedestal and seismic arrester block as per approved drawing and specification. The form work is mostly vertical but may also be inclined and should therefore be considered for while setting the rate.

m2 3.30


BoQ




22 3002

Providing & laying of lean concrete M15 for Abutment foundations, underneath of approach slabs and for RRM wall Type D, 20mm agg. including all works. The soil or backfill below the lean concrete should be well compacted and should not allow any settlements. Thickness 10 cm below abutment walls and 8 cm below approach slabs. The lean concrete area can be inclined up to 15 degrees and therefore formwork may not be necessary. The rate has to include all works and materials to fulfill the task including curing.

m3 21.57

For reinforced concrete M20 grade and above, the contractor has to carryout testing of the local materials like sand, aggregate and cement that it intends to use for the concrete and carryout mix design. This has to b f ll d b ti d t ti f th

23 3003

be followed by preparation and testing of the trial mixes. It may be necessary to use concrete admixtures to achieve the desired strength of the concrete. The particular mix proportion to be used for the concrete of particular grade shall be approved by the client only after the contractor is able to produce the trial mix results of the proposed mix proportion. The contractor shall not be paid for material testing, mix design, preparation and testing of trial mixes and so forth. The expenses for these efforts have to be included under the relevant items of work. The Grades of concrete mentioned in the BoQ are as per IS:456 - 2000. The cost for use of concrete admixtures and other necessary efforts required to achieve the desired concrete strength has to be included in the rates and shall not be paid separately. The admixture type, brand etc. has to however be approved by the Client.


BoQ




3003.1

Providing & laying of Reinforced Cement Concrete M35, for abutment and dirt walls as per drawings and specification. All works and materials to complete the task including curing of the concrete has to be included in the rate. Formwork and reinforcement will be paid separately.

m3 32.85

3003.2

Providing & laying of Reinforced Cement Concrete M35 for Bearing Pedestal/ Seat and Seismic Arrester Blocks as per drawings and specification. All works and materials to complete the task including curing of the concrete has to be included in the rate. Formwork and reinforcement will be paid separately

m3 0.50

Providing and laying steel reinforcement High Strength Deformed Bars (HYSD) of

24 3004

High Strength Deformed Bars (HYSD) of Grade Fe 500 as per IS 1786. The rate quoted shall include cutting, bending, hooking by machine/manual, tying in position including GI binding wire, spacers, laps, chairs, cover blocks, placing into formwork and fixation, all complete as per drawings and specification. Reference will be made to the reinforcement list for calculating the weight of the reinforcement for which the contractor is eligible for payment. The contractor will not be paid for any wastage. The contractor has to consider and include wastage into his pricing of the unit rates.

3004.1

Straight and bend up bars with hooks and any kind of bends, Diameter 10 - 32 mm. All efforts and costs to be included to fulfill the task for abutments, dirt walls, seismic arrester blocks and bearing pedestals.

kg 3174.00


BoQ




25 3005

Providing and fixing of formwork for deck slab sides, approach slabs, kerbs and railing posts according to relevant drawings - surfaces vertical or inclined and as per specification.

m2 164.30

26 3006

Providing and fixing of formwork for RCC Head of railing posts (Bhutanese architecture) according to relevant drawings and specifications.

Nos. 82.00

Providing and fixing Formwork for the underside of the deck slab including the cantilever portion. The rate for this formwork should include the cost for the design, erection and fixing of the false work or formwork support. The false work materials and all other

i /i i d l h k i

Super-structure Works:

27 3007

accessories/items required to complete the task in full have to be provided by the contractor. The Contractor has to study the relevant drawings carefully to judge the kind of false works (staging) that would be required to support the underside formwork for the bottom concrete slab. The false work has to be safe and strong enough to support the weight of the formwork, the concrete above and the construction live load when the concrete is being poured. The formwork has to impact a smooth surface on the resultant concrete. The design of the false work (staging) and the formwork have to be approved by the Client.

m2 210.36


BoQ




28 3008

Providing and laying in situ M35 grade Cement Concrete, including mixing in mixer machine or batching plant, transporting, compacting, curing by water and finishing including all leads and lifts etc complete as per drawing, design and Specifications and as directed by the Engineer/Client. The contractor has to submit the mix design and trial mix test reports of the mix proportion and get them approved before the concrete goes into the bridge. The contractor is reminded here that it is generally not possible to achieve high grade concrete like M35 without use of concrete admixtures. Therefore, necessary considerations have to be made while setting the rates. The reinforcement and formwork shall be paid separately.

3008.1 For Deck Slab including Kerbs m3 78.86g m3008.2 For Railing Posts m3 5.90

29 3009

Providing and laying of Concrete M25 for approach slabs as per specification and drawings. All works and materials to complete the task including complete curing of the concrete has to be included in the rates. The concrete top surface has to be wooden travel finished.

m3 30.70

30 3010

Providing and laying steel reinforcement High Strength Deformed Bars (HYSD) of Grade Fe 500 as per IS 1786. The rate quoted shall include cutting, bending, hooking by machine/manual, tying in position including GI binding wire, spacers, laps, chairs, cover blocks, placing into formwork and fixation, all complete as per drawings and specification. Reference will be made to the reinforcement list for calculating the weight of the reinforcement for which the contractor is eligible for payment. The contractor will not be paid for any wastage. The contractor has to consider and include wastage into his pricing of the unit rates.


BoQ




3010.1

Straight and bent-up bars with hooks and any kind of bends, Diameter 10 - 32 mm. All efforts and costs to be included to fulfill the task for deck slab and approach slabs including kerbs and railings.

kg 12,343.00

31 3011

Fabrication, delivery and laying including fixation of drainage spouts in the bridge slab as per relevant drawings. Diameter of the drainage spout's pipe 75 mm, Grating (cover) in galvanized steel, Size 205 mm x 205 mm square. The grating has to carry a spot load of 100 kN. The drainage spouts has to be constructed in such a way so that the gratings can be temporarily fixed to protect against theft. All efforts and cost have to be included in the rate to fulfill the task. Refer to Dwg. No. DZL-DS-15 for the details.

pcs 16.00

P idi d fi i i iti t i l /

32 3012

Providing and fixing in position strip seal / modular type expansion joints as per detailed drawing and approved specifications including cost of all materials and fixtures, welding, preparing surface for receiving the joints including all leads and lifts etc. complete as per detailed approved drawing and specification and as directed by Client. The expansion joint shall allow movement of between 50 mm and 70 mm.

m 15.60


BoQ




33 3013

Providing & laying of Steel Reinforced Elastomeric Bearings pad as per manufacturer's design, drawings & specifications (tentative size 400 mm length x 500 mm width x 100 mm height). The rate shall be inclusive of all installation , transportation and providing of test certificate from the manufacture. The contractor has to however seek the exact dimensions and drawings of the bearings from the manufacturer based on the design data provided in the relevant drawings. The bearings drawings have to be approved by the Client. The bearings have to be sourced from reputed manufacturers like Mageba, Metco or equivalent.

Nos. 8.00

Providing and placing of Neoprene bb d f i 400 250 20 Th

34 3014

rubber pad of size 400x250x20mm. The rubber pad is to be placed between seismic arrester block and bottom flange of longitudinal girder. The rate should include all works necessary to complete the task.

Nos. 4.00

35 3015

The top of the deck slab and approach slabs shall be finished with brush after the initial setting of concrete. The brush shall be done in the cross direction to provide extra gripping and bondage to the wearing coat.

m2 354.52

36 3016

Providing & laying of wearing coat, depth 70 mm thick bituminous black topping at center and 30mm thick bituminous black topping at two ends (50 mm average thickness) in transverse direction on deck and approach slabs as per design drawing. The blacktopping must be made very accurate. A maximum tolerance in thickness of only up to 5 mm shall be permitted. The black topping must be of high quality, waterproof and oil resistant.

m3 17.73


BoQ




37 3017

Fabrication and erection of the galvanized steel parts for the railing as per relevant drawings. The steel parts have to be hot dip galvanized to prevent rusting. The contractor has to include all costs to fulfill the task. The cost for handling, transport, loading, offloading, storage has to be included in the rate. No additional payment will be made.

m 295.20

38 3018

Construction of 4 Nos. retaining wall Type D (excluding parapets) as per DoR Specifications in CM 1:4 (Length 7.10 m and height 2.00 m) below the approach slabs. The wall should be constructed as per standard drawings. The rate should include the delivery of boulders/ stones and provision of weep holes and bond joints.

m3 50.44

Providing & laying of plain concrete M15

39 3019

for the retaining wall Type B (2 x 6.6 m length and 5.5 m height). The plain concrete area below the wall can be inclined up to 15 degrees and therefore formwork may not be necessary. The rate has to include all works and materials to fulfill the task including curing.

m3 6.05

40 3020

Construction of retaining wall Type B including parapets as per DoR Specifications in CM 1:4 (2 Nos., Length 6.6 m and height 5.5 m) on the left bank beyond approach roads. The wall should be constructed as per standard drawings. The rate should include the delivery of boulders/ stones and provision of weep holes and bond joints.

m3 126.38

Total 3000: Reinforced concrete, formworks and other involved works


BoQ


41 4001.1The providing, erecting, maintaining and dismantling of necessary platforms/ or scaffolding shall be included in the rates.

4001.2

All materials brought & used at site must fulfill the requirements and specifications given in the drawings and in the relevant code of practice. A proper record such as certificates of materials purchased shall be maintained at the site office and produced on demand.

Temporary scaffolding, working platforms and other temporary constructions should

Sub-structure Works:

Type of Work: 4000. Steelwork, temporary steelwork, steel structure & corrosion protection


4001.3

be built in order to allow safe and accurate execution of work. These constructions must have railings, "falling - down - stoppers" and so on, to prevent the laborers and personnel from falling on the ground or into river.

All workers and personnel have to wear safety belt wherever necessary and helmets must be used at all times.

MATERIALS:

Structural Steel:

42 4002.1

The quality of the structural steel is in accordance with the Indian Standard IS 2062, Grade E 250Minimum yield strength = 240/250 MpaMinimum tensile strength = 410 MpaMinimum elongation = 23 %


BoQ




Bolts, Nuts, Washers and Screws:

4002.2

As per IS 4000, IS 3757, IS 6623 & IS 6649 For web and flange splice: 27Φ HSFG bolts (Grade 10.9 in clearance hole); for diaphragm girder connections: 22Φ HSFG bolts (Grade 10.9 in clearance hole) and for stiffener and cross bracing connections: 16Φ HSFG bolts (Grade 10.9 in clearance hole).

43 4003

Responsibility: The contractor is responsible for the accuracy of the work. Any inconsistencies or errors in drawings not detected during the fabrication will not relieve the contractor of his responsibilities. The Contractor has to make a preliminary erection and assembly of all constructions at his workshop/ contractors yard in order to check and guarantee the accuracy of the constructions.

44 4004

Erection Method Statement: The contractor shall submit the erection method statement before carrying out erection works with the following details: a) Equipments and machineries to be used. b) Calculation of erection stresses c) Details for any temporary works including fixing details needed to maintain stability during erection and until permanent works stability is complete.

45 4005.1

Fabrication Requirements:Before fabrication it is the responsibility of the Contractor to prepare shop drawings based on the drawings provided by the Client. Ensure that fabrication processes do not cause changes in the properties of materials resulting in non-compliance with specified requirements. All fabrication shall be carried out within a draught free shop at a suitable temperature and humidity for welding.


BoQ




4005.2

Shop Assembly: The fittings, profile and camber shall be checked before marking connections between longitudinal girders and cross girders.

4005.3

Trial Shop Assemblies: Before delivery at the site, trial assemblies of all steel constructions elements shall be carried out at the manufacturer's workshop. The Contractor shall give prior notice to the Client before commencing trail assemblies.

46 4006.0

Specifications: The specifications for structural steel works are as specified in Technical Specifications, design drawings and other standard codes and practices.

47 4007

Fabrication of all structural steel members of bridge confirming to IS 2062 including cost of all materials, welding, testing, preparation of necessary shop drawings, shop erection, pre assembly, cost of providing temporary restrain/ bracings all complete. The Contractor has to consider all costs following the drawings, technical specifications and conditions of the contract for this item.

t 90.03

48 4008

Supply of HSFG bolts, nuts and washers for the bridge, grade 10.9 in clearance hole as per IS 4000, IS 3757, IS 6623 & IS 6649. The HSFG bolts required are - 27Φ HSFG bolts for web and flange splice; 22Φ HSFG bolts for diaphragm girder connections and 16Φ HSFG bolts for stiffener and cross bracing connections: The cost for supplying of bolts, nuts and washers of different sizes and lengths would be included in the rate.

4008.1 27Φ HSFG bolts, nuts and washers (length 85 mm to 130 mm) Nos. 1,792.00



BoQ





49 4009

Transportation of all the steel structures to Dzongkhaluma Bridge site, Trongsa, Bhutan from the manufacturing Workshop (of the Contractor) all complete in all respect. The Contractor has to consider all expenses related to transportation, shipment, movement, loading, offloading, storage, handling, etc. No extra cost will be allowed in this item.

t 90.03

Complete cost of erection of all structural steel members of bridge as per approved methodology (to be approved by Client) including the cost of dismantling of erection assemblies. The Contractor has to consider all expenses needed to erect the steel

50 4010 structure in to its final position as per drawings, technical specifications and the approved methodology of erection including the rate for provision of scaffolding, temporary platforms, cranes and other efforts such as handling, transportation, loading, offloading, etc.

t 90.03

51 4011

Complete cost of Corrosion protection painting of all the steel structures following the stipulation laid down in ISO 12944 and as per technical specification of this bridge all complete.

l.s. 1.00

Total 4000: Steelwork, Temporary Steelwork, Steel Structure & Corrosion Protection


BoQ


52 5001

The Contractor shall be deemed to have made himself fully acquainted with the full nature of the work, the location and character of the site and means of access to the site, including any traffic restrictions imposed.

53 5002 Day work LabourDay work MaterialsDay work Construction Plant

The day works are an assumption. There might be no day work necessary. The contractor cannot claim any loss in profit or whatsoever, if no or only little day work is necessary. This will not change any

Type of Work: 5000. Day work


rates given by the contractors. The contractors agrees by signing the contract, not to ask for any additional payment.

54 5003 Ganger hr55 5004 Laborer hr56 5005 Mason hr57 5006 Carpenter hr58 5007 Bar bender and fitter hr59 5008 Painter hr60 5009 Driver for light vehicle hr61 5010 Driver for heavy vehicle hr

62 5011 Operator for excavator, dragline, shovel or crane. hr

63 5012 Operator for compressor. hr

64 5013 Operator for tractor (tracked) with dozer, blade or ripper. hr

65 5014 Operator for water pump. hr

Schedule of Day work Rates: Labour


BoQ




66 5015Supply of cement to the work site. The rate has to include transportation and handling.

per

50kg

bag

67 5016

Delivery, supply and handling of reinforcement steel including cutting and, if necessary, bending. The contractor will not be paid for any waste. The contractor has to consider and include wastes into his pricing of the unit rates. Diameter between 8 and 20mm. Reinforcement bars as per Indian Standard IS 178 a steel grade FE 500, Minimum tensile strength 545 Mpa and Minimum elongation 14.5 %.

kg

Fi A t f t

Schedule of Day work Rates: Materials

68 5017 Fine Aggregate for concrete as specified in 5: Concrete Work m3

69 5018 Timber, wood for scaffolding, struts and so forth. m3

70 5019 Plywood suitable for shuttering and formwork. m2

71 5020Gelignite (Nobel Special Gelantine 60 %, or equivalent) including caps. fuse wire and requisite accessories.

kg

72 5021

Transportation to and from the site shall be paid only if the equipment is neither at site, nor a part of the site installation and is being not used for the ordinary priced and rated works. In the transport rates, the hiring charges of the equipment and all personal (staff?) shall be included. No additional payment will be made.

73 5022 Excavator up to and including 1 m3 hr

Schedule of Day work Rates: Construction Plant


BoQ




74 5023

Transport and remove above Excavator to and / or from the site including all efforts to fulfill the task. Rate: only one way

l.s.

75 5024 Excavator over 1 m3 up to and including 2 m3 hr

76 5025

Transport and remove above Excavator to and / or from the site including all efforts to fulfill the task. Rate: only one way

l.s.

77 5026 Excavator over 2 m3 hr

78 5027

Transport and removal of above Excavator to and / or from the site including all efforts to fulfill the task l.s.including all efforts to fulfill the task. Rate: only one way

79 5028 Compressor suitable for all kinds of work including equipment and tools. hr

80 5029

Transport and removal of above Compressor to and / or from the site including all efforts to fulfill the task. Rate: only one way

l.s.


Documents

Enhancing Productivity & Professionalism”The Bill of Quantities shall be read in conjunction with the Instructions to Bidders, Conditions of Contract, Technical Specifications, and