|
| 1 | Supplying, fixing & installation of Static Sculpture (Dandelion Motif) (Artwork) with following broad specification:-Configuration: Triple-stem floral form with spherical seed-head structures (1) General Description:- A large-scale outdoor sculptural installation representing three stylized dandelion seed heads mounted on curved stems, anchored to a landscaped circular base. The sculpture is designed for permanent outdoor installation in a public or commercial landscape setting. (2) Overall Dimensions (Approx.) (a) Total Height: 2.4–3 m (8–10ft), (b) Maximum Horizontal Spread: ~3 m (15 ft), (c) Individual Seed Head Diameter:, (d) Large: ~1.2-1.4 m (4 - 4.5 ft), (e) Medium: ~0.9–1 m (3-3.5 ft), (f) Small: ~0.6–0.7 m (2-2.5 ft) (3) Materials :- (a)Primary Structure: i) Stainless steel tubing (UNS S30400 or equivalent), ii) Stainless steel wire rods (UNS S30400), (b) Seed Head Elements: i) Laser-cut or welded stainless steel spokes, ii) Starburst seed forms welded or mechanically fastened, (c) Finish: i) Brushed stainless steel, ii) Electro-polished stainless steel, (4) Structural Components:- (a) Stems: i) Diameter: 50–75 mm (2–3 in), ii) Wall thickness: 2–3 mm, iii) Internally reinforced for wind load resistance, (b) Seed Head Framework: i) Central hub with radial tension members, ii) Secondary wire lattice forming spherical geometry, (5) Foundation & Anchoring:- (a) Foundation Type: Reinforced concrete footing, i) Depth: 0.4–0.6 m (1.5–2 ft), frost-line dependent, ii) Diameter: 1.4– 1.6m (4–4.5 ft), (b) Anchorage: i) Embedded anchor bolts (ASTM F1554 Grade 55), ii) Base plates with concealed access panels (6) Load & Environmental Design:- (a) Wind Load Design: ≥ 150 km/h (93 mph) i) Seismic Consideration: Zone-dependent, low mass upper structure, ii) Temperature Range: 0°C to +65°C (7) Fabrication Method:- (a) CNC bending of tubular steel stems, (b) TIG/MIG welding of stainless components, (c) Shop pre-assembly followed by modular site installation, (d) Non-destructive weld inspection (visual + dye penetrant) (8) Installation Requirements:- (a) Crane-assisted installation (5–20 ton capacity), (b) Precision levelling and torque-controlled bolt tightening, (c) Final alignment tolerance: ±25 mm (9) Estimated Weight:- (a) Total Assembly: 200–250 kg (440–550 lb) (10) Compliance & Safety:- (a) Designed per AISC Steel Construction Manual, (b) ADA-compliant clearance around base (c) Rounded edges and anti-climb geometry |
| 2 | Supplying, fixing & installation of Contemporary Outdoor Sculpture / Water Feature–Ready Form (Artwork) with following broad specification:-Form Concept: Organic branching structure with disc-shaped platforms (lotus-inspired) (1) General Description:- A large-scale freestanding sculptural installation composed of multiple intertwined, fluid-form vertical members branching outward to support shallow circular disc elements. The sculpture is intended for permanent outdoor installation in a landscaped plaza or garden environment and may optionally function as a decorative fountain or reflective water feature. (2) Overall Dimensions (Approx.):- (a) Total Height: 2.4–3 m (8–10ft), (b) Maximum Width: 2.4–3 m (8–10ft) Disc Diameter: 300–450 mm (12-18 in), (c) Number of Discs: 9–12 units (varies by design intent) (3) Materials:- (a) Primary Structure: i) Stainless Steel: AISI 304 (UNS S30400) (AISI 316 optional for coastal or chlorinated environments) (b) Disc Elements: i) Formed stainless steel Balloon structures. (4) Surface Finish:- (a) High-polish mirror finish (Ra ≤ 0.2 μm), mechanically polished, (b) Optional clear anti-fingerprint or hydrophobic nano-coating, (c) Welds ground flush and polished to seamless appearance (5) Structural Components:- (a) Vertical Members: i) Hollow stainless steel sections, ii) Nominal OD: 80–120 mm, iii) Wall thickness: 2.5–3 mm, iv) Internally reinforced at junctions (b) Disc Supports: i) Integrated cantilever arms, ii) Hidden mechanical fastening or full-penetration welds (6) Foundation & Anchorage:- (a) Foundation Type: Reinforced concrete footing i) Depth: 0.4–0.6 m (1.5–2 ft subject to soil conditions) ii) Diameter: 1.4– 1.6m (4–4.5 ft) (b) Anchoring System: i) Stainless steel base plate, ii) Embedded anchor bolts (ASTM F1554 Grade 55 or equivalent) (7) Load & Environmental Design:- (a) Wind Load Resistance: ≥ 140 km/h (87 mph) (b) Live Load on Discs: Decorative only (non-climb rated), (c) Temperature Tolerance: 0°C to +50°C, (d) Corrosion Resistance: Urban outdoor exposure (8) Fabrication Method;- (a) CNC tube bending and 3D form rolling, (b) TIG welding (AWS D1.6 compliant), (c)Multi-stage polishing and passivation, (d) Shop pre-assembly for geometry verification (9) Installation Requirements:- (a) Crane installation (8–15 ton capacity (b) Laser alignment for verticality, (c) Final tolerance: ±25 mm over full height (10) Estimated Weight:- (a) Total Assembly: 200–250 kg (450-550 lb) (11) Safety & Compliance:- (a) Rounded edges and no sharp projections (b) Anti-climb geometry (c) AWS D1.6 (Stainless Steel Welding) |
| 3 | Supplying, fixing & installation of Freestanding Outdoor Sculptural Installation (Artwork) with following broad specification:-Form: Torus Sculpture (1) GENERAL DESCRIPTION:- A large-scale circular sculptural form consisting of a thick annular ring with an organically patterned perforated surface. The sculpture is vertically oriented and mounted on a concealed structural base, intended for permanent outdoor installation in landscaped public or private spaces. (2) OVERALL DIMENSIONS (APPROX.):- (a) Overall Height (Diameter): – 2 m, (b) Inner Opening Diameter: 0.3m , (c) Ring Thickness (Radial): 1200 mm , (d) Overall Depth: 250-300mm, (e) Ground Clearance: 50 – 100 mm (concealed support) 3. MATERIAL SPECIFICATION(a)Primary Material- i) Stainless Steel: AISI 304 (UNS S30400 / EN 1.4301) (AISI 316 optional for coastal or high-corrosion environments) (b)Plate Thickness- i) Main body plates: 8–12 mm ii) Internal stiffeners: 6–8 mm (4) SURFACE FINISH:- (a) Finish Type: Fine brushed finish (b) Finish Grade: #240–#320 grit (c) Edges: Fully radiused and deburred (d) Final Treatment: Pickling and passivation (e) Optional: Clear anti-graffiti or nano-protective coating (5) PERFORATION PATTERN:- (a) Pattern Type: Organic cellular / biomorphic (b) Hole Diameter Range: 30 mm – 100 mm, (c) Minimum edge distance between perforations: ≥ 25 mm (d) Cutting Method: CNC laser or water jet cutting (e) All cut edges smoothed and polished (6) STRUCTURAL DESIGN:- (a) Construction: Welded segmented plates forming a hollow torus (b) Designed to resist: Wind speed ≥ 140 km/h (c) Accidental human contact loads (d) Sculpture classified as non-climbable (7) FABRICATION:- (a) CNC cutting of perforated panels, (b) Precision rolling to circular geometry (c) TIG welding (AWS D1.6 compliant) (d) Welds ground flush and blended invisibly (e) Factory trial assembly prior to delivery 8. FOUNDATION & ANCHORAGE:- (a) Base Support- i) Concealed stainless steel pedestal or pin support ii) Support connected to internal structural frame (b) Foundation- i) Reinforced concrete footing, ii) Approx. size: 600 × 600 × 750 mm (subject to soil), (c) Anchors- Stainless steel anchor bolts: M20 (9) INSTALLATION:- (a) Crane-assisted lifting and positioning, (b) Vertical alignment tolerance: ±25 mm (c) All fixings concealed from public view (d) Final cleaning after installation (10) ESTIMATED WEIGHT:- (a) Total Sculpture Weight: 200 – 250 kg (depending on thickness) (11) SAFETY & COMPLIANCE:- (a) Rounded edges, no sharp corners (b) No pinch points or protruding elements (c) Designed in accordance with: (d) AISC / Eurocode 3 (e) AWS D1.6 – Stainless Steel Welding (f) ISO 12944 – Corrosion Protection |
| 4 | Fabrication, supply, transportation and installation of custom-designed artistic urban furniture / play-cum-interaction structures made of Mild Steel (MS) sections including straight, inclined, circular and modular elements complete with cutting, bending, welding, grinding, surface preparation, one coat of anti-corrosive epoxy/zinc-rich primer and two coats of outdoor grade PU/epoxy paint in approved colours, fixing over paved surface or concrete base using base plates and anchor bolts/chemical anchors, including all labour, tools, equipment, scaffolding, consumables, taxes and incidentals, complete as per approved design, drawings and directions of Engineer-in-Charge. |
