138WE/L-209/2025-26

Dismantling of existing hanger door leaves of size 5.26m x 7.52m, total 8 leaves, dismantling of top tracks and bottom guide rails, embeded in RCC/PCC top & bottom track, end supports etc. without damaging the existing structure complete all as specifed and directed.

Design, supply, fabrication, erection and commissioning at site of motorised biparting sliding hanger door with clear span of 40.00 mtr (Tolerance +05%), consisting of total 8 Nos leaves, size of each leaf 5.26 x 7.52m (four sliding on left side and four sliding on right side of the hanger door opening) (Tolerance +5%) to be fixed in existing Hanger located at Leh without damaging the existing structure with following designs. Total opening to be divided in equal panels in 08 Nos in longitudinally & panels set to be opening on either side of the bay. Minimum design requirement for the hanger door are as follows:- Minimum conditions, specifications and design requirement for the hanger door are as follows:-

(a) The gate should have dual of mode of operation:- (i) Motor/Electronic mode with bidirectional mode. (ii) Manual Mode. Suitable motor/Electric/Electronic arrangement to be designed by contractor and fitted on ground. (b) Hanger door frame structure including tracks/Rails, Top tracks, will be designed with structural steel with suitable UB/ISMB/ISMC, RHS and CHS members conforming to relevant IS Code and design as per IS-800-2007 with standard worst combination of different type of load as per IS code applicable to Leh. The design shall inculde the column end supports of suitable steel members on both sides of the opening to support the top tracks/rails. The gate shall have cladding of Puff material of 50mm thickness with standard wind pressure of Leh complete all as specified and directed.

(c) Design of gate including GA/Structural drawing of door, hanger door, top tracks and bottom rails including RCC/PCC section below the bottom rails to be vetted by IIT and submitted for approval of GE before starting of the work. (d) Operation, maintenance and training for two months to be given by the executing agency. (e) Guarantee - Door structure - 25 Years. (f) Guarantee - Roller wheels, motors and electric control panels - 8 Years.

Minimum items to be provided:- (a) Door leaf each of 5.26m x 7.52m - 8 Nos. (b) Insulation on leaf : 50mm Puff cladding at one end and 0.5mm Galvalume sheet at another end. (c) Top guide Beam ISMC/ISMB 200 conforming to steel grade E250 as per IS 2062-2011 complete . (d) Bottom Sleeper ISMC/ISMB150mm conforming to steel grade E350 as per IS 2062-2011 complete. (e) Bottom track Rail 40mm complete. (f) Track edge protection, L shape complete. (g) Water drainage system at track complete. (h) Bottom roller of 300mm dia (2 each leaf). (j) Top Roller of 150mm dia (3 each leaf).

(k) Top and bottom stopper at each leaf complete. (l) Top Cleat (to protect leaf from falling) complete. (m) Buffer stopper for extra safety for door leaf complete. (n) Main door (2m x 1m) - 1 No. (o) Vision Panel (500mm x 500mm) - 2 Nos. (p) Anti rusting zinc rich primer - 2 coats. (q) Epoxy painting - 2 coats. (r) 3 Phase, 2 HP gear motor idler chain drive unit - 4 Set (for 8 leaf). (s) Idler breakig system - 4 Set.

(t) Manual declutching system - 4 Set. (u) Weather proof operating control panel of CPRI approved with LED Switches as Forward-Reverse-Stop function - 4 Set. (v) Limit switch (for auto power cut) - 8 Set. (w) Flasher cum siren - 4 Set. (x) PVC insulated copper conductor FRLS (H) of 1.5 Sqmm 4 core complete all as specified and directed. (y) PVC insulated copper conductor FRLS (H) of 1 Sqmm 2 core complete all as specified and directed. (z) Fire rated MS Conduit complete. (aa) Cable carrier festoon rope wire unit complete. (ab) Weather seal at bottom and between leaf to protect Hangar permises form dust, rain and out side harsh weather.

Demolition of cement concrete (unreinforced) in ground floor and pavings not exc. 15cm thick below or above ground level complete all as specified and/or as directed by the Engr-in-Charge.

Material and labour for PCC 1:4:8, type D2 (using 40mm graded crushed aggregate) as in mass concrete and filling of foundation, complete all as specified and/or as directed by Engr-in-Charge.

Material and labour for Cement concrete work in pavement/ hard-standing of flexural strength 40 kg/per square centimetre in field using 400 kg of cement per cubic metre, thickness of concrete 25 cm or less including mixing polyester triangular fibres as secondary reinforcement in all type of concrete and mortar complete all as specified and/ or as directed by Engr-in-Charge. Note :- Polyester triangular fibres will be measured and paid separately.

Supply only polyester triangular fibres as secondary reinforcement.

Material and labour for 100 mm thick cement concrete type B-1, 1:2:4 (using 20mm graded aggregate) as in sub-base complete all as specified and as directed.

Material and labour for forming 12mm thick expansion joints in 200mm thick cement and filled with pre-formed bituminous filler and top 30mm primed and sealed with sealing compound, Grade 'A' complete all as specified and directed.

Material and labour for forming Contraction (Dummy) joints 65mm deep x 10mm wide, filled with sealing compound Grade 'A' complete all as specified and/ or as directed by Engr-in-Charge.

Dismantling wrought iron or mild steel work of any description not otherwise provided for angle iron or flat iron as in post and guard bars or grating, complete all as specified and as directed by Engr-in-Charge.

Material and labour for rolled mild steel section as in main and cross beams, hip and jack rafters, purlins where connected to common rafters and running rails and guide, for sliding doors fixed with angle cleats or other connecting plates and similar work conforming to Fe -290 Gde E-165, complete all as specified and/or directed by Engr-in-Charge.

Preparation of new/ previous untreated surfaces of any description over 10cm grith or width, not otherwise described with one coat of red oxide zinc chrome primer followed by two coats of synthetic enamel paint complete all as specified and directed.

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