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NTID 44742395
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💬 Talk to Our Bidding ExpertProvision Of Pre Fabricated Po in Visakhapatnam - Complete Tender Details
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Military Engineer Services
Visakhapatnam, Andhra Pradesh, India
NTID 44742395
- Opening Date : Sat 25th April, 2026
- Closing Date : Thu 23rd April, 2026
- ₹ 3130000.00
- NTID 44742395
Key Values: Document Cost: 500.00 | EMD: 62600.00 | Estimated Cost: 3130000.00
Tender Description
Provision Of Pre Fabricated Porta Cabin For Pr Equipment At Cg Jetty Visakhapatnam Under Ge (i) (cg) Vizag
Documents
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Document-1
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
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Document-2
721.3 kBOil_India_ExtraDoc...Oil_India_ExtraDocument-GCO0449P23.pdf
Costs
-
EMD
62600.00 -
Document Cost
500.00 -
Estimated Cost
3130000.00
BOQ Items Total Items : 35 | Total Qty : 541.33
| # | Item | Quantity | Units |
|---|---|---|---|
| 1 | Supply and fixing Porta Cabins (MS Fabricated Container) of size (40' x 10' x 8.5') comprising with the following specifications :- TECHNICAL SPECIFICATION OF CABIN (A) Material Certification: All structural steel sections (RHS, SHS, ISMC, Angles) must be new, prime quality, and sourced from reputed mills (e.g., SAIL, JSW, Tata Steel) with relevant mill test certificates. Sections must be free from twists, bends, or any surface defects like laminations or pitting. (B) Bottom Frame (Base Structure): (a) Main Longitudinals & Cross Members: Fabricated from 100mm x 50mm x 3.2mm (minimum thickness) MS Rectangular Hollow Sections (RHS) . The main longitudinal members shall run the full 40ft length without any intermediate joints. Cross members shall be placed at a maximum center-to-center spacing of 600mm to provide adequate support for the flooring system. (b) Stiffening: The frame shall be further stiffened by welding 100mm x 50mm ISMC (Channel sections) and 60mm x 40mm MS square pipes in both directions. The number and placement of these stiffeners shall be based on a structural design calculation, ensuring that the floor can withstand a minimum uniformly distributed load (UDL) of [e.g., 250 kg/m ] and a concentrated load of [e.g., 150 kg] at any point. (c ) Corner Castings: Heavy-duty, fabricated or cast steel corner fittings (similar to shipping container standards) must be integrated at all eight corners. These are critical for lifting, stacking, and securing the cabin during transport and at the site. | 4.00 | Each Job |
| 2 | (C) Top Frame (Roof Structure): (a)Main Members: Fabricated from 50mm x 50mm x 2.6mm (minimum thickness) MS Square Hollow Sections (SHS) . (b)Stiffening & Purlins: The roof frame must be stiffened longitudinally and transversely with a grid of 50mm x 50mm SHS and 25mm x 25mm SHS acting as purlins. The spacing of these purlins shall be designed to adequately support the roof sheeting and any live load during maintenance, with a maximum spacing of 700mm. The frame must be designed with a pre-determined camber (e.g., 1/200 of span) to compensate for dead load deflection. (D) Corner & Side Posts (Vertical Supports): (a)Corner Posts: Fabricated from high-strength 75mm x 75mm x 6mm MS Angle or a fabricated box section of equivalent strength. These are the primary load-bearing members for vertical loads from stacking and must be perfectly vertical and plumb. (b)Intermediate Posts: A minimum of 10 posts per cabin. These shall be fabricated from 65mm x 65mm MS Angle for door/window jambs and 50mm x 50mm SHS for wall stiffeners. All posts shall be precisely aligned and fully welded to both the top and bottom frames at their ends, creating a rigid box structure. (c) Base Plates: Each post shall be welded to a robust 150mm x 150mm x 10mm thick MS base plate, which is then continuously welded to the bottom frame, ensuring effective load transfer. | ||
| 3 | (E) Fabrication Quality: (a)Welding: All structural welds must be continuous and of high quality, performed by certified welders using appropriate electrodes (e.g., E7018). Slag must be removed, and welds should be visually inspected for uniformity, penetration, and freedom from cracks or undercuts. (b)Lifting Arrangements: Lifting hooks or lugs shall be specially designed and fabricated from high-tensile steel plate (minimum 20mm thick). They must be reinforced with gusset plates and welded directly to the main corner posts and top frame to safely withstand the dynamic loads during lifting operations. The design safety factor for lifting shall be a minimum of 4:1. (F) Finishing and Painting (Structural Steel) Surface Preparation (Blast Cleaning): The entire fabricated steel frame shall be thoroughly prepared by abrasive blast cleaning to a minimum standard of Sa 2.5 (Near-White Metal) as per ISO 8501-1. This removes all mill scale, rust, and foreign matter, creating a perfect profile for paint adhesion. Finish Coats: Two finishing coats of high-performance two-pack polyurethane (PU) enamel in the specified shade shall be applied. PU enamel offers superior gloss retention, UV resistance, and durability compared to synthetic enamel, which is critical for the external environment. The total dry film thickness (DFT) of the entire paint system shall be a minimum of 150-200 microns. | ||
| 4 | (G) Wall, Roof, and Flooring: Detailed Description (a) External Wall Cladding: Material: 1.2mm (minimum base thickness) pre-painted Galvalume (Alu-Zinc) steel coil (Make: TATA JSW, or equivalent). Galvalume offers superior corrosion resistance compared to galvanized iron, especially in saline atmospheres. (b) Profile & Fixing: Sheets shall be roll-formed into a vertical ribbed profile (e.g., sinusoidal or trapezoidal) for added strength and aesthetic appeal. They shall be fixed to the side posts and frames using self-drilling, corrosion-resistant fasteners with EPDM bonded washers to ensure a water-tight seal. Flashings at corners and edges shall be made from matching material. (c) Internal Wall Paneling: Office Area: 8mm thick, high-density, moisture-resistant MDF (Make: Greenply MR MDF or equivalent). The boards must be fixed over the insulation layer to a sub-frame, ensuring a smooth, flush finish. (H) Roofing System: External Sheet: 1.2mm thick pre-painted Galvalume high-rib profile sheet (e.g., Trapezoidal profile with a rib height > 35mm). The high ribs provide excellent water-carrying capacity, allowing for minimal slope. Sheets shall be laid with side and end laps of at least one full rib and 150mm respectively, sealed with butyl tape, and fixed with appropriate fasteners. A ridge cap shall be provided for a watertight finish. (J) Insulation: As per clause 4.5. False Ceiling: 8mm thick, high-density, moisture-resistant MDF. The boards shall be precisely cut and fixed to an aluminium grid suspension system. The entire ceiling shall be perfectly level, and all perimeter edges shall be finished with a decorative aluminium moulding. Provision for recessed/ surface mounted LED lights must be accurately cut out. | ||
| 5 | (K) Flooring System: Sub-floor: 18mm thick high-density, waterproof cement particle board (CPB) . CPB is preferred over standard cement fiber board for its superior screw-holding capacity, dimensional stability, and resistance to moisture. It must be fixed to the bottom frame and stiffeners with corrosion-resistant self-tapping screws at maximum 300mm centers. All joints shall be staggered for structural integrity. Floor Finish: Heavy-duty, homogeneous PVC vinyl flooring, 2.0mm thick (minimum), with a slip-resistant textured finish (Make: Gerflor, Tarkett, Armstrong, or equivalent). The vinyl shall be laid with full-spread adhesive application, ensuring no air bubbles. All joints shall be heat-welded using matching color PVC welding rod and then dressed flush to create a seamless, waterproof, and hygienic surface. The vinyl shall be turned up at the walls by 50mm to form a skirting. (L) Doors and Windows: Detailed Specifications (a) Main Entrance Door (6.5' x 3'): Construction: A robust door made from a 40mm thick pre-painted Galvalume sheet factory-filled with high-density polyurethane foam (PU) for thermal and sound insulation. The door frame shall be fabricated from a 1.6mm thick MS cold-formed section, welded to the main structure. Hardware: Heavy-duty 316-grade stainless steel butt hinges, a high-security mortise lock with three levers, an aesthetic lever handle on both sides, and a heavy-duty hydraulic door closer suitable for external use. |
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