Archive · October 2026
Thirty-Four Piles, One Slab: How Chavannes' C4 Drum Lifts a Simulation Hospital Off the Ground
How C4, a 56 m concrete drum in Chavannes-près-Renens, frees its ground floor: 34 bored piles, a jointless 360 m raft and one prestressed transfer slab.
Keep the roof, lose the steel: Allen + Crippa win Holcim's visitor workshop in Siggenthal
Allen + Crippa won Holcim's open SIA 142 competition in Siggenthal with «Holcim Lab»: a kept shed roof, re-used slabs and carbon-prestressed CPC concrete.
2.90 m Floor to Floor: How Many Risers? A Swiss Stair Check in Python
Type a floor-to-floor height, try every riser count, test each against Blondel's rule and the Swiss BFU and SIA 500 bounds. 75 lines of plain Python.
400 m trains set the curve; Interlaken's 1915 Aare bridges get 50 more years
BLS is rebuilding 1.7 km of track into Interlaken Ost and strengthening two listed 1915 riveted Aare bridges for 50 more years, all for 400 m InterCitys.
Throw a Thousand Rays at a Section and Watch the Daylight Argue Back
Drag the sun, watch the section light up: raycasting from Wolfenstein 3D to SN EN 17037, with a GhPython snippet that scores how much floor the sun reaches.
Vom Werkplan-Marathon zum geprüften Plan: on 18 November we check the plan inside Archicad
Free Archicad Powersession, 18 Nov 2026 in Zürich: SIA 400 dimensioning, norm checks, model hygiene and SIA 416 areas checked live in the model. 20 seats.
The 1.15 City: Zürich's Dividend Cascades Outward While 1.6 Million Places Wait Inside
Urban scaling says dense cities pay off, yet Zürich lost 21,500 residents to its hinterland. The OECD finds room for 1.6 million inside today's zones.
Metropolis at 100: Lang's stacked city is still the section every architect draws
Metropolis turns 100 as Don Davis opens its centenary in Lyon. Read Lang's stacked city as a section, and draw your project's lower city on the sheet.
Same Wall, Same Insulation, One Swap: The Glaser Condensation Check in 80 Lines of Python
Build a U-value and Glaser condensation check in plain Python: same wall, same insulation, one swap, and 0 vs 4.44 kg/m² of winter water. Code included.
Rooms first: soppelsa architekten win Schwarzenburg's new Oberstufenzentrum with «Merel»
Zürich office soppelsa architekten wins Schwarzenburg's Oberstufenzentrum with «Merel»: 40 applicants, a unanimous jury, about CHF 20 million, move-in 2031.
