El rascacielos de Manhattan que casi se cae… por REFORMARLO

This week, entire blocks of Midtown Manhattan were evacuated due to a 33-story skyscraper that nearly collapsed from within: the former Pfizer headquarters at 235 West 42nd Street, which is being converted into the largest residential conversion in the United States. On Tuesday, July 7, two steel columns on the 21st floor began to buckle—to bend suddenly under load—and several floor slabs gave way. Firefighters monitored the tower with drones for fear of a partial collapse. The result: no injuries. Why did a building that had stood for over sixty years nearly fall just as it was being renovated? In this video, as a building surveyor, I explain step by step what buckling is, why converting offices into apartments requires structural modifications, and why the extra weight of a cantilevered addition, combined with a column that wasn't sufficiently reinforced, is the exact combination for steel to give way. And why this case matters far beyond New York: office-to-residential conversions are underway across the country. Important note: the official investigation is still open. What I'm sharing here is the technical explanation provided by the engineers, not a verdict. ⏱️ CHAPTERS 0:00 A Manhattan skyscraper on the brink of collapse 1:36 The building: Pfizer's former headquarters 2:37 The office-to-housing frenzy 3:28 What happened on July 7 4:49 Why it buckled: Weight, overhang, and the unreinforced column 6:13 What is buckling? 7:23 The red flags: 7 previous violations 8:15 Why it will happen again 9:16 The lesson (and Sunday's video) 📸 IMAGE CREDITS (Wikimedia Commons) Photos of the emergency response next to the building — Tessa Bury (CC BY 4.0) Photo of the damaged column inside — courtesy of FDNY (informational use) Manhattan skyline, Chrysler Building, Brooklyn Bridge, views from the Empire State Building, and East River apartments — Jakub Hałun (CC BY) 4.0) 570 Lexington Avenue and FDNY Station (10 House) — Kidfly182 (CC BY-SA 4.0) John Hancock Center (Chicago) — w_lemay (CC BY-SA 2.0) Former Pfizer headquarters (235 E 42nd) — Norbert Nagel (CC BY-SA 3.0), Coolcaesar (CC BY-SA 4.0), ajay_suresh (CC BY 2.0) and Jim Henderson (public domain) Manhattan skyline from Newark Bay and The Rookery Building — Ken Lund (CC BY-SA 2.0) Two Bryant Park / 42nd Street — Tdorante10 (CC BY-SA 4.0) Midtown and Bryant Park (aerial) — Sonja Pieper (CC BY-SA 2.0) Building with scaffolding (Lincoln, UK) — David Howard (CC BY-SA 2.0) FDNY Engine 21 — Transpoman (CC BY-SA 4.0) Construction scaffolding (Manila) — Marek Ślusarczyk / Tupungato (CC BY 3.0) Midtown Manhattan (Nov. 2025) — Epicgenius (CC BY-SA 4.0) LVM building, Münster — Dietmar Rabich (CC BY-SA 4.0) RCAF Dunnville, steel structure — J. S. Bond (CC BY-SA 4.0) Sky, 605 West 42nd Street under construction — Mahir256 (CC BY-SA 4.0) Times Square — diego_cue (CC BY-SA 3.0) Vars Building, Buffalo—Reading Tom (CC BY 2.0) Skyline with the World Trade Center (1995), Brooklyn — 2gerrytwo (CC BY-SA 4.0) Scaffolding in Amsterdam — Fons Heijnsbroek (CC0) Shinjuku Station, Tokyo (at night) — calvision (CC0) Slab formwork — Slab Formwork Tables (CC BY 3.0) Licenses: CC BY 2.0/3.0/4.0 (creativecommons.org/licenses/by) · CC BY-SA 2.0/3.0/4.0 (creativecommons.org/licenses/by-sa) · CC0 (creativecommons.org/publicdomain/zero/1.0). 🎥 Videos resource: Pexels. 🎵 Music: Kevin MacLeod (incompetech.com) — Darkest Child, Long Note Two, Spacial Harvest, The Descent, Anguish, That Zen Moment, Crypto, Decline, Ishikari Lore. CC BY 4.0 license (creativecommons.org/licenses/by/4.0/). #Manhattan #NewYork #Pfizer #engineering #construction #architecture #skyscrapers #buckling #Midtown #housing