Structural and Roofing work for New LPG Loading and Unloading Gantry and Compressor House

Amount

All Supply, Fabrication, Erection, Construction works shall be performed as per AFC Drawings, Project Specifications, Project Standards, General Notes, Indian Codes, etc.,

ROOFING - SUPPLY AND ERECTION

Providing approved quality profiled, precoated, steel sheets (for roofing, cladding etc.) made from cold rolled high tensile Zincalume/ Galvalume Steel of 550 MPA yield stress conforming to IS:513, IS:14246 and ASTM AS: 1397; the substrate shall be hot dip metallic coating of aluminium- zinc alloy (150 grams per sq. mtr. Total on both sides, coating class AZ150); the bottom unexposed surface shall be provided with alkyd backer of minimum 5 microns over a 5 micron coat of primer; top exposed surface shall have SMP (Silicon Modified Polyester) paint system minimum 20 microns in approved shade applied over 5 microns primer; overall coated thickness of sheets not less than 0.55 mm having base metal thickness of minimum 0.5mm, profile depth not less than 30mm and pitch of 190 to 255mm; including cutting, mitering, laps, providing cutouts for fixing accessories, necessary fastners (approved quality anti corrosive polyester polymer coated, rivets, nuts, bolts, self drilling screws/ fasteners with integral washers and EPDM seals, and nylon colour caps and natural cure type joint sealants etc.) All complete as per approved manufacturer's specifications.

Providing and Laying ridges or hips of width 60 cm overall width plain G.S. sheet fixed with polymer coated J or L hooks, bolts and nuts 8 mm dia G.I. limpet and bitumen washers complete. Fabricated out of 0.5mm precoated Zincalume/ Galvalume Steel steel sheets of same material/ quality etc. as that of sheeting; bent and profiled to match with the roofing and cladding, including all cutting, fabrication, rivetting, fastners etc. all complete.

Providing and fixing pre-coated galvanised iron profile sheets (size, shape and pitch of corrugation as approved by Engineer-in-charge) 0.55 mm ( + 0.05 %), total coated thickness with zinc coating 120 gm per sqm as per IS:277 in 240 mpa steel grade, 5-7 microns epoxy primer on both side of the sheet and polyester top coat 15-18 microns. Sheet should have protective guard film of 25 microns minimum to avoid scratches during transportation and should be supplied in single length upto 12metre or as desired by Engineer-in-charge. The sheet shall be fixed using self drilling /self tapping screws of size (5.5x 55mm) with EPDM seal, complete up to any pitch in horizontal/ vertical or curved surfaces excluding the cost of purlins, rafters and trusses and including cutting to size and shape wherever required. After completion of the project, all materials shall be dismantled and taken away by the contractor outside plant boundary to the complete satisfaction of Engineer-in-charge all complete as per the direction of Engineer-in-charge. SUPPLY OF ALL MATERIAL IN CONTRACTOR'S SCOPE.

MS Grating Cat. A,B - Non FIM Items

Supplying, fabricating and erecting in position at all levels and locations Hot Dip Galvanized ELECTROFORGED GRATING purchased from approved manufacturer conforming to Standard No. TP-1ZZZA-CV-SDD-0003 in walkways, structures, platforms, stair treads etc. including cutting to required size, shape, making holes, notches, openings of required size, nosing, straightening if required, making the edges smooth, removing the burrs, fabricating clamps, fixing, tack welding, preparation etc. all complete as specified and directed. Grating shall be HOT DIP GALVANISED according to IS:2629 and the quantity of Zinc coating shall be 900gms/sqm of surface area (0.12mm uniform thickness). Steel shall conform to IS:2062, Grade BR (SUPPLY OF ALL MATERIALS IN CONTRACTOR'S SCOPE).

Grouting - Non FIM Items

Non Shrink Grout: Supply and laying of Non-shrink cementitious grout Conbextra GP of FOSROC or Equivalent for grouting of base plates, under base frames or other anchoring elements for structures and/or machines, including roughening & cleaning of surfaces, form-works, chamfering of edges, smoothing of exposed surfaces, Curing, making flush to the existing RCC surface by chipping & finishing, RCC surface to be made wet for 24 hrs. before grouting, providing all tools and labour necessary to complete the work as per drawings and manufacturer’s specifications and as per the directions of Engineer-in-charge.

NON-SHRINK GROUT FOR STEEL STRUCTURE Supply and laying non-shrinking grout with a minimum crushing strength of 40 N/mm2 for grouting under base plates, base frames or other anchoring elements for structures and/or machines, including cleaning of surfaces, form-works, chamfering of edges, smoothing of exposed surfaces, providing all tools and labour necessary to complete the work as per drawings / specifications and as directed. The non shrink grout shall be laid as per approved vendor‘s specification ( SIKA/FOSROC make)

General Steel Works - Non FIM Items

STRUCTURES - SUPPLY/FABRICATION/ERECTION OF STEEL Supply/FABRICATION AND ERECTION of bolted and/ or welded STRUCTURAL STEEL WORKS of Grade E250BR or E350BR (confirming to per IS:2062) at all locations and levels, including all rolled and builtup sections/ compound sections made out of rolled sections and/or plates/ bent plates in all types of structural frameworks, floor beams, columns, stairs, trussed girders or any other structural items or accessories to support equipments, piping, etc., cutting to required size, straightening/ bending if required, edge preparation, cleaning, preheating, welding/bolting of joints with high tensile bolt of minimum grade 8.8 conforming to IS:3757, (including sealing the joints of box sections with continuous welding and plugging any open ends & holes of box sections), finishing edges by grinding, fixing in line and level with temporary staging & bracing and removal of the same after erection, grouting with Ordinary Grout or premix free flow Nonshrink Grout as specified, including preparation and submission of detailed fabrication drawings, preparing the Surface for painting (SSPC-SP-10),Supply and apply painting as per Specification No. TP-1ZZZA-PI-SPE-0003 after fabrication with one coat of 65 to 75 micron DFT of inorganic zinc silicate primer (FP-6), 1 coat of 170 micron Two pack Epoxy HB Poly amide cured (FP-3A), 1 coat of 40 micron Acrylic Polyurethene (FP-1) fixing in line or level with temporary staging, complete with all tools, equipments and labour for all depths and heights as per drawings and directed. Materials to be supplied as per approved vendor lists attached with special conditions of contract.

Ladder / Cage / Safety Chains

Include but not limited to Supply of Materials required to fabricate and erect the Structural Elements required for providing the Access, by way of ladders, to all types of Platforms at all Heights and Depths along with Cage (or without cage) Ladders and the Safety Chains (or Bars) that are provided at the Entrance of the Platforms from the Ladders. Steel material shall be as per FY=250Mpa Grade 250BR or as per specifications. Fabrication of Structural Steel Materials for ladders including arranging required labour, consumables, equipment, tools and tackles, etc., loading, unloading, intermediate handling, transportation to painting yard, collecting from painting yard and carting the same to erection site / laydown area complete in all respects. It also includes Erection of fabricated Ladders and Safety Barriers along with Supply and fixing of all type of Connection Bolts (Erection, Hot Dip Galvanised/Non-Galvanised Permanent bolts) as per Specifications, Layouts and fabrication Drawings. Scope shall include all activities like Bolting, Welding, Aligning, making necessary alterations caused due to mismatch of Bolt Holes, Torque Tightening of Bolts, cleaning, giving final touches to the welded parts, etc. as required complete with all tools, equipment and labour,preparing the Surface for painting (SSPC-SP-10),Supply and apply painting as per Specification No. TP-1ZZZA-PI-SPE-0003 after fabrication with one coat of 65 to 75 micron DFT of inorganic zinc silicate primer (FP-6), 1 coat of 170 micron Two pack Epoxy HB Poly amide cured (FP-3A), 1 coat of 40 micron Acrylic Polyurethene (FP-1 for all depths and heights along with all related works in order that the Structure is handed over to the complete satisfaction of the Engineer-in-charge.

Same as above and Ladder and cage

Safety Barrier Gate

Hand Railing 1000mm - Non FIM Items

Supplying, fabricating and fixing in position at all locations 1000mm high HORIZONTAL HAND RAILING as per Standard TP-1ZZZA-CV-SDD-0003 (for platfonns, walkways, etc. or any other location as directed) consisting of top rail, mid rail and vertical posts (Maximum spacing 1500mm c/c) with 32mm nominal diameter medium grade MS Tubes confonning to IS:1239 and 100x5 MS Toe Plate confirming to IS:2062 (Grade NB), including straightening if required, cutting, bending, welding, bolting, grouting with ordinary grout,preparing the Surface for painting (SSPC-SP-10),Supply and apply painting as per Specification No. TP-1ZZZA-PI-SPE-0003 after fabrication with one coat of 65 to 75 micron DFT of inorganic zinc silicate primer (FP-6), 1 coat of 170 micron Two pack Epoxy HB Poly amide cured (FP-3A), 1 coat of 40 micron Acrylic Polyurethene (FP-1)s etc. all complete as specified, shown and directed. (SUPPLY OF ALL MATERIALS IN CONTRACTOR' s SCOPE). (Complete handrail work shall be measured as length of top rail only and not length of each element fixed).

STRUCTURAL STEEL WORKS (TUBULAR/HOLLOW SECTION) (REFER SPECIFICATION NO.TP-1ZZZA-CV-SPE-0021)

Supplying, transporting, storing, fabricating & erecting in position and testing/examining at all locations and levels bolted and/or welded TUBULAR/BOX SECTION STEEL WORKS of all types using STEEL TUBES of YST 310 GRADE CONFORMING TO IS 1161 & IS 4923 in all types of trusses, girders, purlins, siderails, columns, runners, beams, ties, portals, framework, bracings, brackets, sagrods, etc including all handling, cutting to required size, straightening/bending if required, edge preparation, cleaning, preheating, bolting and/or welding of joints with high tensile bolt of minimum grade 8.8 conforming to IS:3757, providing and fixing end caps and plugging holes, finishing edges by grinding, fixing in line and level with temporary staging and bracing and removal of the same after erection, grouting with ordinary grout or premix free flow nonshrink grout as specified, including preparation and submission of detailed fabrication drawings, preparing the Surface for painting (SSPC-SP-10) with one coat of 65 to 75 micron DFT of inorganic zinc silicate primer (FP-6), 1 coat of 170 micron Two pack Epoxy HB Poly amide cured (FP-3A), 1 coat of 40 micron Acrylic Polyurethene (FP-1) fixing in line or level with temporary staging, complete with all tools, equipments and labour for all depths and heights as per drawings and directed. Materials to be supplied as per approved vendor lists attached with special conditions of contract.

M/S TAYAB ALI

D B CONSTRUCTION

BDS PROJECTS

Mahesh Kr Agarwalla

SBS SINGH & SONS

M/s SCS ENTERPRISE

RAMA TECHNOLOGY

PKM ERECTORS