Construction of a temporary enclosure to facilitate assembling of MC18 high-current proton cyclotron magnet including providing enclosure for 600 kVA UPS for RIB at Bidhannagar campus of VECC, Kolkata.

Amount

NOTE:1) Debris generated from this work shall be disposed off by the contractor outside departmental premises by mechanical transport etc without any extra cost to the department and/or as instructed by Engineer-In-charge. During execution of work Contractor should maintain proper safety measures and provide proper insurance coverage to all work men to be engaged in this work. Contractor should quote rates accordingly. 2) Bidders must visit the site before submission of tender. 3) Above mentioned work will be executed at Bidhannagar campus of VECC. Bidders are requested to quote rates accordingly. 4)Rate of each item shall be inclusive of all kind of cost, manpower, materials, tools & tackles, scaffolding at all level., taxes & duties including GST. No extra payment will be paid over quoted rate. Contractor should quote rates accordingly. 5) Contractor has to be very careful so that no nuisance is created or users are not disturbed during execution of the work. Labours engaged should be well behaved/good mannered. 6) All sand to be used for this job should be coarse sand duly screened unless specifically mentioned. 7) Plaster on repaired surface shall match with existing surface. 8) Security regulation and rules of DAE shall be strictly followed during deployment of materials and work force. The work should be done satisfying all safety aspects and insurance coverage, PPE’S such as safety shoe, helmet with chin strap, safety belts, safety goggles, welding shields, gloves, vici wear etc. are compulsory for all workers. Safety nets are to be provided as directed. 9) Copies of challan for the materials brought inside VECC Campus shall be submitted for reference & record of the department. 10) Time schedule as mentioned in NIT shall be strictly adhered to. The work should be carried out even on extended time period if required and for that special permission has to be obtained from competent authority. 11) Contractor shall include cost towards testing in their rate. Hence all testing charges are to be borne by the contractor. 12) The tentative/suggested makes have been specified in the tender document based on requirements of VECC, desired performance, detailed study of the technical parameters, manufacturing process, quality assurance/control & testing. The list is merely for guidance purpose. However, the bidder(s) can prefer any other make(s) which is/are meeting technical specifications given in the Appendix-'A' of Specification of Civil Works- 2023, DCSEM and shall conform to the technical parameters/performance of the tentative/suggested makes and/ or shall conform to the relevant BIS codes or other relevant codes. In case of non-approved make(s), the bidder(s) shall suggest such equivalent / alternate make / brand, meeting above-mentioned technical parameters, during pre-bid stage and before submission of bid(s).

Dismantling steel work in built up sections in angles, tees, flats and channels including all gusset plates, bolts, nuts, cutting rivets, welding etc. including dismantling and stacking within 100 m lead.

Dismantling roofing including ridges, valleys and gutter etc and stacking the material within 50 m lead. G.S Sheet / FRP Sheet / AC Sheet.

Dismantling Aluminium / Gypsum partitions, doors, windows, fixed glazing and false ceiling including disposal of unserviceable surplus material and stacking of serviceable materials within 100 m lead as directed by the Engineer-in-charge.

Dismantling plain cement concrete manually / by mechanical means carefully without damaging adjacent structures including disposal of debris outside VECC Bidhannagar campus as per direction of Engineer-in charge.

Dismantling of RCC works including Cutting and stacking of steel reinforcement bars and disposal of unserviceable materials outside VECC Bidhannagar campus as per direction of Engineer-in-charge.

Dismantling brick work in Cement mortar carefully without damaging adjacent structures including stacking of materials and disposal of unserviceable materials outside VECC Bidhannagar campus lead as per direction of Engineer-in-charge.

Providing Structural steel work in M.S Plain Plates and chequrred Plates for Embedded Parts, Trench Covers, Connection plates etc. including cutting, hoisting, fixing in position and applying a priming coat of approved zinc chromate steel primer and painting with two coats of PU paint etc. including cost of structural steel Plates, welding all labour charges etc. complete as per drawings and specifications. Using materials of approved manufacturers. All test reports to be provided along with the supply of the materials.

Providing Structural steel work using angles, channels, joists and other sections, welded and / or bolted in built up sections for trusses, structural steel floors, frame works, monorails and other structures including supplying, cutting, welding, fabricating, hoisting, fixing in position with nut & bolt, applying a priming coat of approved steel primer and painting with two coats of PU paint etc. complete all as per specifications, drawings and as directed by the Engineer in charge. Up to and including 300 mm Joists, 350 mm channels, and below sections using materials of approved manufacturers. All test reports to be provided along with the supply of the materials.

Providing and Fixing Anchor Fastener of approved make including drilling in concrete as per requirement for fixing Eps or other structures all as specified by the manufacturer complete all as per specifications and drawings.

16 MM diameter 150 mm Long

20 MM diameter 100 mm Long

Providing Structural steel work for MS Door with Flat, Plates, M.S. Angles, M.S. Channels etc. with up to No 10 No Max Hinges as per drawing , with Aldrop ,Tower bolt.etc Total 4 Handle back to back or as per drawing including cutting, hoisting, fixing in position and including cost of Grouting below base plate with Epoxy Non shrinking Grout of MC Dar conforming to minimum M35 strength after 24 Hrs and cost of welding for gate fabrication with all labour charges etc. complete as per drawings and specifications. sand blasting and applying a coat of epoxy Zinc phosphate primer of MRF Metal coat or approved make all as per specifications, drawings and as directed by the Engineer in charge. Structural steel sections to be used shall be of approved make.

Fixing in position in RCC / masonry/ form work mild steel or stainless steel fabricated embedded parts supplied by the Department including transporting from the departmental stores, aligning / welding fixing in position, providing necessary supporting arrangements etc complete all as per drawings and specifications at all levels and as directed by the Engineer in charge. Weighing upto 1500 kg

Supplying, fitting and fixing boiling water proof ply conforming to IS: 710-1977 bonded with phenol formaldehyde synthetic resin conforming to IS: 848-1974 of approved make and brand fitted and fixed as per design as per approval and direction of Engineer-in-Charge. [excluding the cost of supporting frame work and teak wood batten/Lipping] In Ground Floor (12mm thick)

Designing, supplying, fabricating, testing, transporting, handling and erecting at required positions and levels Structural Steel members for pre engineered building as per approved design and drawing including girders, steel beams, rafters, purlins, cleats, fixing accessories, connection fasteners, girts, wind bracings and all structural members required to support roofing, rain water gutters, lighting windows including epoxy painting and making provisions stated as below including all consumables. This shall comprise of the following : Primary members: Primary members such as transverse rigid frames, curved rafters and wind bracings, bearing frame rafters, supports for rain water gutters etc. using three plate technology or as per approved design (Using Grade 50- 345 mpa yield strength) Secondary Members: Secondary members such as purlins, girts, eaves, struts, wind bracing, flange bracings, base angles, clips, and other miscellaneous structural parts using cold rolled forming technology.( Using 310 mpa Yield strength) Connections: All field connections shall be bolted. primary field connections shall be bolted and shall conform to ASTM- A -325 and Secondary connections shall conform to ASTM- A -307. Provisions as shown in drawing for : a) Openings for windows, ventilators, etc. with suitable steel members or frames on all the sides of the opening. All fabricated structural steel shall be painted with epoxy protective paint of approved make minimum 2 coats and 150 micron dry film thickness of approved colour after surface preparation by sand blasting. 1) All fabrication including welding shall be carried out in the factory only and no site fabrication will be permitted. 2) Detailed design and Drawings, shop drawings shall be prepared by the contractor through specialised pre engineered building agency/experienced consultant and submitted for approval and detailed design report, Loading details / reactions shall be given for design assesment. 3) Conceptual aesthetically pleasing supporting system shall be worked out and submitted for approval before proceeding detailed design.

Supplying, fabricating, testing, transporting, handling and erecting at required positions and levels metal roofing/ wall and canopy roofing including flashings and insulation etc. as per approved drawings and design complete as directed by the Engineer-in-charge including all consumables comprising of the following: Double skin insulated standing seam roofing system comprising of 0.50 mm thick colour coated / bare Al-Zinc Alloy coated steel 0.50 mm with overall width of 400 to 500mm by seaming for 100% water tightness on outer face and 0.50 mm thick inner linear sheet with galvalume sheet profile and physical material properties as specified. These sheets shall be fixed on specially reinforced polyamide or acetylyte anti friction di electric brackets at every location for permitting unhindered, free sheet movement at all required locations. The profile shall have a special in built drainage joint at side laps to make it fully watertight even in fully submerged condition. It shall have overall depth of 100 mm from horizontal after fixing. The side laps shall be of interlocking type without requirement of any mechanical seamer. Insulation: This shall be comprising of two layers of rockwool insulation each of 50 mm thick with density of 48 kg / Cu. M. Sub Grit (Top Hat) 1.5 mm thick Glavanised steel hat section fixed to main purlins, above first layer of insulation, to support the aluminium sheets. Inner linear sheet of 0.50 mm nominal TCT of physical material properties as specified. Vapour Control layer : The vapour contol layer to reduce the movement of water vapour from inside the building through the roof construction to reduce the risk of condensation shall consists of 3 layer membrane to be laid continuous across its surface shall be fully sealed at laps, perimeters, penetrations to ensure effectiveness & aluminium foil of 0.50mm thick laid over insulation board.

Providing, supplying and fixing hollow metal flush steel doors 40 mm thick of approved make consisting of door frame and shutters and all hardware fittings, frame size 143 mm X 57 mm made out of 14g thick G.I sheets and shutters made of 16g thick sheets, hollow portion filled with puff, including necessary stiffners in shutters and frame, vision panel of specified size with 4 mm glass and clip on pressed steel frame for vision panels, fixing 4 nos heavy duty stainless steel 304 grade ball bearing hinges of size 100X75X3 mm, mortise / dead lock of approved make of size 70 mm cylinder with key operation, a pair of 200 mm long stainless steel handles, 250 mm long stailless steel tower bolt, surface door closer with standard arm etc. frame hollow portion filled with PCC 1:2:4, necessary hold fast embedded in concrete/ steel, fixing in concrete/ steel with anchor fastners. finished with Polyurethane painting of approved colour complete all as per drawings and specifications and as directed by the Engineer-in-charge

Providing and constructing brick work in Cement mortar using standard bricks of approved class/ quality, make or brand in foundation and plinth including curing, raking out joints, simultaneous pointing below plinth level if specified, complete as per drawings, specifications and as directed by the Engineer-in-charge. Brick work in C.M 1:6 using crushed sand.

Providing 20 mm thick water proof plastering in cement mortar 1:3 (using river sand) finished smooth with a floating coat of neat cement including approved water proofing compound added @ 2% by weight of cement or as per manufacturer's specifications, sieving of sand to required fineness, preparation of surface, scaffolding at all heights, curing all as per specifications, drawings and as directed at site.

Providing, painting, finishing walls with two coats of anti-algae, weather proof acrylic smooth emulsion paint of approved make with silicon additives on sand face plaster/ plain plaster & concrete surfaces of required shade over new work over a base coat of exterior cement primer including preparation of the surfaces, scaffolding complete. as per specifications and as directed by the Engineer-in-charge.

Providing and laying 50 mm thick cement concrete flooring with concrete hardner topping under layer 38 mm thick cement concrete 1:2:4 and top layer 12 mm thick wearing surface with metallic floor hardner, cement being mixed with metallic floor hardner of approved quality and make in the ratio of 4:1 (4 cement and 1 metallic floor hardner) by weight and this cement hardner compound mixed with 6 mm down graded stone aggregate in the ratio of 1:2 by volume including providing and fixing 30 X 3mm glass strip,This includes cost of cement slurry, finishing to the required finishing and cleaning neatly while handing over the areas etc. complete as per specifications and drawings.

Providing and fixing 10 mm thick flooring with acid and alkali resistant tiles of approved make and colour as per IS 4457 using acid and / or alkali resistant mortar bedding and joints filled with acid and / or alkali resisting Epoxy for 5 to 8 mm depth over a bed of Bitumastic compound 8 to 10 mm layer and bitumastic primer complete as per the direction of the Engineer-in-charge In flooring over a bed of minimum 10 mm thick acid proof mortar with acid and / or alkali resistant tiles of size 300 X 300 X 10 mm of approved colour including providing required slopes and levels (this work to be carried out through approved specialized agency) complete as per specifications and as directed by the Engineer-in-charge.

Providing and fixing 10 mm thick skirting / Dadooing with acid and alkali resistant tiles of approved make and colour as per IS 4457 using acid and / or alkali resistant mortar bedding and joints filled with acid and / or alkali resisting Epoxy for 5 to 8 mm depth over a bed of Bitumastic compound 8 to 10 mm layer and bitumastic primer complete as per the direction of the Engineer-in-charge In flooring over a bed of minimum 10 mm thick acid proof mortar with acid and / or alkali resistant tiles of size 300 X 300 X 10 mm of approved colour incliding providing required slopes and levels (this work to be carried out through approved specialized agency) complete as per specifications and as directed by the Engineer-in-charge.

Providing and Fixing in position Suspended false ceiling system using 600 x 600mm Calcium Silicate Ceiling tiles. Tiles having 15mm densified edges and 100% humidity resistance, incombustible as per BS476 part IV with thermal conductivity of 0.043 w/m KC and approved surface design and edge profile (TEGULAR/ SPINTONE) placed in a suspended grid of size of 600 x 600mm made of hot-dipped G.I steel sections having an exposed surface capping of pre-finished baked polyester painted coil wherein the main tee of size 24mm x 38mm x 0.33mm shall be suspended at 1200 mm centres along the length of ceiling with 4mm dia G.I wire with necessary level adjusters and cross tees of size 24 x 28 x0.33mm x 1200 mm shall be inserted in to slots between the main tees at 600mm centres and thereafter in direction vertical to the longer tees, cross tees of size 24 x 28 x 0.33mm x 600mm shall be inserted to form a grid size of 600 x 600 mm resting on the perifery walls on wall angles of size 20mm x 20mm x 3000 mm x 0.40 mm thickness. The rate shall include providing necessary openings for light fixtures, diffusers, trap doors etc to be made as per layout drawings. The work shall be carried out as per directions of Engineer-in- charge. The main tees to be suspended from the ceiling/ soffit with the help of matal dash fastners of 6mmx50mm, soffit clits of 25mmx35xxx1.60mm and 4mm dia G.I wire with galvanised spring steel levelling clips. the entire grid system shall be designed to bear a distributed load of minimum 15 kg/Sq.m (Only calcium silicate false ceiling area will be measured for the purpose of payment)

Providing and fixing PVC rain water pipes conforming to relevant IS type B and PVC SWR fittings & specials conforming to relevant IS including jointing with seal ring / With PVC solvent adhesive including fixing in walls using clamps etc and addition of new pipe line to the existing storm water line with re-routing the same complete all as per drawings, specifications and as directed by the Engineer-in-charge. SWR PIPE 110 mm O/D

Core cutting in RCC beyond 150 mm up to and including 200 mm Dia.

shoiab construction (BID ID -3250661)

G C B CONSTRUCTION PRIVATE LIMITED (BID ID -3251535)