Dual Compound — Shell Study · rev. B
Members a · a/φ
10.000 · 6.180 m
Height
32.785 m
Sunk Cap
5.257 m below grade
Max Plan Ø
34.026 m
Usable Area
3,076.9 m²
Gross / Net
4,165.2 / 3,619.9 m²
Framed Envelope
3,380.6 m²
Structure
Nodes
62 × cast steel · A / B / C
Members
180 · 160 structural
Shell
Tubular steel, S355
Shell Steel
186.1 t
Core
CLT, decagonal
Floors L1–L6
CLT, 50 % on the shell
Founding
RC ring beam · 10 grade nodes
Circulation
Shaft
CLT core + R90 drum · to L6 + 1.10 m
Escape Stairs
two, double helix
Helix Sweep
1,080° · L0→L6
Lift
firefighting, 6 stops · L0–L5
Envelope · 120 faces
ETFE · icosa
50 · 2,165.1 m²
DGU · dodeca
50 · 908.2 m²
PV Crown
10 · 66.1 kWp
Ground Slab
5 · 90.8 m²
Below Grade
5 · 216.5 m² pit
Embodied C (A1–A3)
1,621.8 tCO₂e
incl. biogenic
817.8 tCO₂e
RIBA Stage 1–2 proof of concept · rev. B · figures
indicative, not for construction
Geometry derived from a · checking…
Display
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Full model, rev. B at a = 10 m: double-helix stairs, lift
L0–L5, core and drum doors, figures to scale.