PROVN OF AFNET EQPT ROOM BUILDING , CCR BUILDING AND BUILDING FOR PARKING SHED (FEMS STRUCTURE) FOR AIRCRAFT SPECILIST VEHICLES (ASV) AT AF STN NYOMA UNDER GE(AF) LEH

AFNET EQPT ROOM BUILDING Design Supply and Erection of Prefabricated AFNET EQPT ROOM building of size 16.0 Mtr X 6.0 Mtr X 3.20mtr as per arch line drawing. The structural design all including of footing and foundation needs to be prepared and also to be vetted from NIT or IIT by the contractor . Certificate from IIT/NIT needs to be in conjunction with codal provns and submitted by the contractor before execution of the work. Structure frame system design (incl MS Columns, MS Rafter, MS Purlins, MS Truss, etc) with structural steel conforming to IS Code and design as per IS Codal Provns with std worst combination of load as per IS Code prevailing in Nyoma. The structural frame system should support the structure. The vetted drawing should provide details of Foundation details, Structural member details,Truss details, Structural Joints and all fixing details required for execution. Design criteria: The structural shall be designed in accordance with relevant IS Provns/NBC code/ extant government guidelines suitable for Nyoma however, some of design criteria are listed as under: (a) Seismic Co-efficient: As per Seismic Zone IV. (b) Snow load : For min 01 mtr of snow and as per IS codal provn for Nyoma. (c) Wind load :Equivalent to wind speed of min 55 mtrs/sec or as per relevant IS Provn. (d) Roof slope: as per design requirement. (e) External temperature :(-) 40 degree to (+) 35 degree. (f) Water absorption/Penetration: Nil & adequate sealing material be provided through include Silicon Sealing Gun. (g) Fire resistant (Walls and ceiling): Fire resistant & should not emit toxic fumes. (h) Ease of construction :Shelter should be modular in design. (i) Design load: As per IS 875/Relevant IS provn. (j) Design of fdn as per the structure vetted by the auth as mentioned above. (k) The design of the structure shall be carried out on 10 Ton/m² of soil bearing capacity (SBC). (l) The rate includes transportation upto approx 200 km from Leh toward Nyoma

Design Data. (a) Length : 16.0 mtr (Outer to outer) (b) Width : 6.0 mtr (Outer to outer) (c) Clear Height upto bottom of truss ceiling :3.20 Mtr

Foundation shall be designed by the tenderer and quoted rate is deemed to include the same (Design Cost). All the items i.e. Exavation for foundation, removal/refilling of soil,PCC 1:4:8 as lean concrete , PCC 1:2:4 for foundation work for MS tube pipe, structural steel work, bolts, base plates, connections, and erection are deemed to be included in the quoted rate for this item. Quoted rate is also deemed to include necessary vetting of Structure duly signed and stamped from any IIT/NIT of the structural drawing prepared by the approved structural design consultant of tenderer. Note :- If footing is designed as RCC , Reinforcement work, concrete work and formwork for footing, plinth beam,pedestal, Anchor Bolt etc are included in the quoted rate by the contractor. No extra payment shall be admissible)

Flooring: (a) HARDENED SHELL, UPS BATTERY,SMPS, REST ROOM AND CORRIDOR : 10 mm thick ceremic tiles of size 600mm x600 mm over 15mm thick screed bed of cement mortar 1:4 over sub base of 25 mm thick PCC 1:2:4 type B0 over 100 mm thick PCC 1:4:8 over 150 mm thick Hard core hard core to a true surface over rammed earth filling under floor are deemed including in the quoted rated for this item. (b) Toilet portion (Floor & Skirting): (i) Non skid ceramic joint free coloured tiles of size 300x300mm of 7-8 mm thick over 15 mm thick screed bed of cement mortar 1:4 over sub base of 25 mm thick PCC 1:2:4 type B0 over 100 mm thick PCC 1:4:8 over 150 mm thick Hard core to a true surface over rammed earth filling under floor are deemed to be including in the quote rate for this item. (ii) Non-skid ceramic joint free coloured tiles 7 to 8 mm thick (Square/Rectangular) in wall matching with floor and high wire mesh to be screwed to wall panels including 10mm thk plaster in CM 1:4 in skirting 100mm high etc. set and joint free in neat cement slurry and pointed in white or coloured cement to match complete to be including in the quote rate for this item. (c) Masonry Steps and skirting :

Wall: (a) M&L for Pre-cast cement concrete block masonry with solid blocks, exc. 10cm in width type C1 (1:3:6) 20 mm graded stone aggregate and setting in mortar1;4 cement mortar at site for outer pheriphery upto FFL, incl masonry steps complete all as specified and shown on drg as directed by Engr-in-charge. (b) The main and partition PUF insulated panels with inner Sand/Multani Mitti colour–coated GI metal skin. The thickness of the PUF panel shall be 80 mm. The Panels will be made using 0.50 mm thick color coated steel sheets on both side with 80 mm thick layer of rigid HCFC, CFC, HFC free modified Polyisocyanurate foam. The PUF insulation material shall be fire-retardant and self-extinguishing; conforming to international standards. There shall be no gap between wall and roof panels. All joints shall be properly sealed and finished with suitable flashing to ensure complete sealing. All materials used for manufacturing the shelter shall be new and shall comply with the relevant Bureau of Indian Standards (BIS). (i). Manufacturing Process:, The PUF sandwich panels shall be manufactured by a high pressure injection Process (ii). GI Skin Specification:, The outer and inner skins of the panels shall be colour-coated GI sheets of 0.5 mm TCT (Total Coated Thickness). A 50-micron PVC guard film shall be provided on the finished surface only, to protect against scratches during handling. Galvanization shall conform to GR-120 as per IS-277.,(iii). PUF Insulated Core Properties:,• Density: 40 kg/m³ (±2 kg/m³) • Compressive Strength (at 10% deformation): 1.15 kg/cm²,• Tensile Strength: 4.0 kg/cm²• Bending Strength: 4.2 kg/cm² • Adhesion Strength: 3.0 kg/cm². (iv). Dimensional Stability (48 hours):,• At –25°C: 0.1%,• At +38°C and 90% RH: 0.1% • At +100°C: 0.4%,• Closed Cell Content: 90–95%,• Operating Temperature Range: –40°C to +35°C • Thermal Conductivity at 10°C: 0.018 kcal/m/hr/°C,(v). Design value: 0.020 kcal/m/hr/°C or 0.23 W/m·K (vi). Fire Resistance: * Horizontal extent of burn less than 100 mm as per BS 4735,* Self-extinguishing as per ASTM D1692,* Not easily ignitable as per BS 476 Part 5 (Class I) and BS 476 Part 7,(vii). Water Absorption: 0.20% by volume at 100% relative humidity, (c). All sandwich panels shall be provided with suitable tongue and groove, which shall be fixed in place during the on-site process itself. The fixing of the tongue and groove shall be such that 2.7 m long × 1.2 m wide panels can be placed properly. The tongue and groove in the panels for operation shall be provided with PVC caps for sealing after installation. (d). All panels shall be manufactured in single pieces as per the approved panel layout drawing, using the above-mentioned materials and manufacturing process. (e) Panel Joining Arrangements: (i) The insulated panels shall be joined with each other using tongue and groove arrangements to ensure complete sealing. The panels shall be fitted on the bottom and top tracks GI sheets, anchored to the concrete plinth.

Flashing. Suitable flashing with 0.6mm thick pre-coated sheet of matching color with panels will be provided at all joints between roof and wall corners.

Roof: (a) S & F for Pre- painted galvalume aluminum zinc coating GI based corrugated steel sheet 0.60mm thick of an colour having tensile strength of 550 Mpa as in roof covering/cladding to wall, fixed with self tapping screws as specifid and directed by Engr-in-charge. Pre painted (matching with roof tint) wind tie of size 40 X 5mm flat iron shall be provided at lower and upper horizontal end of each pitch for protection against wind. (b) The outer sides of truss must be covered the PPGI/Puf Panel. Note : Necessary Flashing include deemed to the quoted rate.

Ridge Cover : 0.60 mm thick pre-coated corrugated/plain sheet of approved color matching with the roof sheet of size & design, 3.0 m long and 900 mm wide will be provided. PPGI sheet is to be fixed on top junction of the roof using suitable self-tapping screws over steel purlins. Installing foam closers between Ridge cover and Roof sheet to avoid the entry of snow inside the shelter. No gap should be there in the roof design for allowing the entrance of snow inside the roof from ridge and roof sheet.

False Ceiling : S&F for false ceiling will be made up of 60mm thick continuous line manufactured hybrid core insulated fireproof sandwich ceiling panels in 1100mm width with facility of customized length core type modified insulation core with an internal temperature range of -30 degree C to +40 degree C . The panels will be made of 0.50 mm thick colour coated steel sheets on both side with 60mm thick layer of rigid HCFC, CFC,HFC free modified polyisocynanurate foam providing max U value of 0.36 W//m2k with necessary certification to be submitted to engineer -in - charge before execution. The false panels will be provided with tongue and groove joint interlocking system.All materials required to manufactures shall be comply with r thick (4.40kg/m) elevant bureau of indian standard specification. The false ceiling panel will be provided with tongue and groove or lip locking joint for interlocking. False ceiling will be supported with the help of inverted CRA , Tee section 50x50x6 L -Section 50x50x5mm thick(3.80 Kg/m) fixed appropriately to the truss all as manufacturer guidelines complete all as specified and directed.

Doors and Chowkats;. (a) Room Doors and Chowkats : 03 Nos of doors incl MS heavy chowkats shall be provided for having size as shown in drg made of MS frame with PU paint coating. The door shall be of GI metal skin reinforced with hybrid core insulated panel 0.50mm thick sheet of door of same color (specification mentioned above for the walls panel) jacketed within a frame of Mild Steel Channel section of size 60 x 50 x 3 mm. The doors shutter shall be hanged with 04 pieces heavy duty hinges SS 125 mm . 2 Nos of SS drop of 250 mm and SS tower bolts of 200 mm size from inside and 2 Nos D type 150 mm SS handles shall be provided in each shutter. (b) Entrance Door and Chowkats. 02 Nos of entrance Double leaf door incl MS heavy chowkats shall be provided for having size as shown in drg made of MS frame with PU paint coating. The door shall be of GI metal skin reinforced with hybrid core insulated panel 0.50mm thick sheet for door of same color (specification mentioned above for the walls panel) jacketed within a frame of Mild Steel Channel section of size 60 x 50 x 3 mm. The doors shutter shall be hanged with 04 pieces heavy duty hinges SS 125 mm . 2 Nos of SS AL drop of 250 mm and SS tower bolts of 200 mm size from inside and 2 Nos D type 150 mm SS handles shall be provided in each shutter. 01 No Canopy Rain/sun shed of 0.60 mm thick PPGI sheet of size 2300 mm x 450 mm complete as directed by Engineer-in-Charge. (c)Toilet Door and Chowkats :- 01 No of factory made solid panel PVC door incl MS chowkats and shutter 30 mm thick (style) consisting of frame made out of MS tubes. M.S frame shall be covered with heat moulded plain coloured PVC channel having a PVC sheet strip of 20 mm width stuck inside with solvent cement for stiles and plain colour PVC sheet for top rail, lock rail and bottom rail on either side & as gap insert for top rail & bottom rail; Paneling of plain colour PVC sheet to be fitted in the M.S frame welded/sealed to the stiles & rails with suitable PVC sheet beading and jointed & fixing in Solid PVC Door Frame of size 50mm x 47mm made out of 5mm plain colour PVC sheet reinforced with M.S. Square tube, suppling & fixing with complete hardware fitting i,e 100mm SS butt Hinges, 150mm SS handle, 200mm SS tower bolt 02 Nos at site as per specification & drawing complete as directed by Engineer-in-Charge.