Viewing Single Post From: Core Columns Design

Viewing Single Post From: Core Columns Design
Grit1645	Nov 20 2008, 03:25 PM
Posts: 305 Group: BANNED! Member #797 Joined: 08/12/08	mynameis Nov 20 2008, 03:00 PM Grit1645 Nov 20 2008, 02:54 PM mynameis Nov 20 2008, 02:34 PM Evidence of this being a non HSS building is from? NIST? UL? 911 Commission? Pictures of the debris. Pictures of the construction. If the column section in your first photograph had been filled with concrete, trust me, you would know it. Dust and concrete were everywhere during the collapse. Lots of water doused flames and lots of moving were done to the material without any forensic investigation that would determine your conjecture. We do not and cannot know this as an argument. We can however assess if HSS was used before or near the construction of the Twin Towers and if this was constructed with reinforced concrete? I would think it would be a simple question to answer factually? That search and rescue website seems to think so. Quote: At the heart of the structure was a vertical steel and concrete core, housing lift shafts and stairwells. S I don't know how you propose to make that determination outside of the photographs. Having seen plenty of steel with concrete in/on it, I can tell you that it would be quite apparent in the pictures if that were the case, regardless of how much damage/water/moving around they underwent. The concrete adheres to the steel, it would not all be jarred out that easily or that completely. I worked on a site where they made connections to encased steel, and they had to jackhammer the concrete off to open up bare steel to weld the new connections to. Simply determining whether it was commonly used around that timeframe or not doesn't help much, because each building's structural composition is determined by the designers from several available options.
Posts: 305 Group: BANNED! Member #797 Joined: 08/12/08

Core Columns Design · World Trade Center