madfranks
9th April 2010, 01:09 PM
The construction documents for the north tower of the World Trade Center:
http://911research.wtc7.net/wtc/evidence/plans/table.html
Now, when looking at the plans, most of you probably won't realize the significance of the centralized tubes of concrete shear walls with a perimeter moment-resisting steel frame and how this relates to how the building would collapse, but for those trained in architecture/engineering/construction, it's an eye opener to see what the structure is.
http://911research.wtc7.net/wtc/evidence/plans/table.html
Now, when looking at the plans, most of you probably won't realize the significance of the centralized tubes of concrete shear walls with a perimeter moment-resisting steel frame and how this relates to how the building would collapse, but for those trained in architecture/engineering/construction, it's an eye opener to see what the structure is.