A 150-foot diameter circular royal ballroom. Engineered with 16 radial 3D tubular space trusses, soaring 20-foot Roman glass arches, and an eaves tension ring delivering a 100% column-free clear span of 17,671 sq. ft.
The 150 FT Round Garden Marquee unites the grandeur of historic European royal conservatories with modern 3D aerospace space-lattice structural engineering.
By replacing the initial proposal's 17-pillar asymmetric layout with a mathematically pure 16-pillar hexadecagon and introducing a continuous eaves tension ring, we completely eliminate the 4 interior columns. The result is 17,671 sq. ft of unobstructed, crystal-chandelier ballroom floor with sweeping 20-ft tall arched glass views into surrounding garden lawns.
Exact 29'-3" chord spacing with 8 true diametrical 180° axes of symmetry.
Zero pillars in front of guest tables, bridal stage, or central dance floor.
Raised glass lantern at 39-ft apex pulls heat out naturally for climate comfort.
Eliminates summer solar radiant heat and dampens heavy monsoon rain noise.
Complete circular arrival drive, central fountain plaza, and formal parterre gardens surrounding the marquee.
Explore the 150-foot clear-span structure in true 1:1 scale WebGL. Orbit, zoom, inspect tubular 3D trusses, toggle structural layers, and transition between Day, Sunset, and Night Gala lighting.
Explore every dimension of the Round Garden Marquee: from daylight garden ceremonies and twilight fountain galas to soaring 3D truss ceilings and structural BIM cutaways.
Daylight Facade
20-ft fair-face brick piers, soaring Roman arched glass windows, slate-grey PPGI conical roof, and landscaped garden lawns.
Night Atmosphere
Warm golden interior chandeliers radiating through 20-ft glass arches, glowing circular fountain, and festoon-lit heritage trees.
Grand Entrance
Double French glass doors flanked by brick piers with coach lanterns, ornate stone capitals, and lush organic floral arch.
Interior Ballroom
17,671 sq. ft unobstructed marble and parquet dance floor, luxury banquet tables, and 16 radial 3D tubular space trusses.
Ceiling Rigging
View straight up into the 39-ft apex. 16 tubular trusses with integrated warm LED profile lighting converging at the compression drum.
Structural BIM
Full structural skeleton detailing the perimeter tension ring beam, 16 inverted-delta radial trusses, purlin rings, and foundations.
Architectural and structural engineering vector drawings prepared for client approval, municipal permitting, and factory fabrication.
Detailed engineering package for steel fabricators: 16-node 3D Cartesian coordinates, AISC 360 & AWS D1.1 specifications, full weldment schedules, Eaves Tension Ring Node detail (Joint E-R42), Apex Compression Drum detail (Hub H-01), and a 6-step tandem crane erection sequence.
Turnkey single-source delivery by Fusion Developers, from deep geotechnical foundation packages to aerospace lattice space-trusses and luxury architectural glazing.
16 Isolated reinforced concrete footings (2.5m × 2.5m × 0.6m) tied together by a continuous perimeter ground plinth beam. Complete with grade 8.8 M30 high-tensile anchor bolt cages.
16 Radial Inverted-Delta Tubular Trusses connecting to an Ø 6'-0" central apex compression drum and an eaves tension ring beam (+20'). Fabricated from high-grade structural steel CHS pipes (48.4 MT total).
0.5 mm PPGI pre-painted color-coated steel sheeting laid with 16 radial hip caps. Under-roof 50 mm high-density glasswool insulation blanket with reinforced double-sided aluminum foil facing and wire mesh.
20-ft tall fair-face red clay brick masonry piers and a 3-ft continuous plinth. Fitted with 5,800 sq. ft of 8mm/10mm architectural tempered glass in heavy-duty dark bronze aluminum Roman arches and French doors.
Raised motorized glass cupola lantern at 39-ft apex providing passive thermal stack ventilation. Bottom truss keel chords engineered with continuous pipe profile for direct clamping of sound line-arrays and stage lighting.
470 linear feet of continuous 0.6 mm color-coated steel perimeter box gutters (450 mm girth) with 8 heavy-duty external downspouts safely conveying high storm volumes away from foundations.
Engineering efficiency at its peak: by pairing a continuous eaves tension ring with 3D tubular space lattice trusses, we cut structural steel dead-load by over 56% compared to traditional solid-web PEB I-frames.
Grade S355 / ASTM A500 Structural Pipes
29.48 kg/m² (Lowest in Clear-Span Class)
Massive Raw Material & Foundation Cost Reduction
Our 3D Space Lattice System vs Conventional Solid PEB I-Rafters
Fast-track precision fabrication and synchronized site civil works by Fusion Developers ensuring on-time delivery for grand wedding season opening.
Site grading, layout setting-out, excavation, 16 isolated footings, ground tie beam, and anchor bolt embedding.
CNC cutting, 3D lattice truss assembly, compression drum fabrication, shot-blasting, and epoxy coating.
Column installation, eaves tension ring lock, central shoring tower, radial 3D trusses crane lift, and apex drum torque.
Concentric purlins, 50mm glasswool insulation, 0.5mm PPGI roof sheeting, 20-ft fair-face brick piers, and plinth walls.
Arched glass installation, French doors, cupola glazing, chandelier rigging, marble flooring, and client commissioning.
Fusion Developers provides full in-house structural engineering, precision steel fabrication, architectural glasswork, and turnkey project delivery. Connect directly with our chief engineering team to approve this proposal.