Viewing Single Post From: Firefight: Inside the Battle to Save the Pentagon

Viewing Single Post From: Firefight: Inside the Battle to Save the Pentagon
bretwalda	Mar 24 2009, 12:49 PM
Posts: 205 Group: Members Member #173 Joined: 01/21/08	Hehe...I always enjoy listening to the fake sincerity and inquisitiveness from the skeptics - as if they're fooling someone. Simple shear load physics here - stuff breaks at its weakest point when a force is applied - not the strongest. The bottom part of the base is the strongest because that is where the greatest loads culminate - not only from wind forces being applied to the other end, but also gravity exerted unevenly over the mass of the pole. These poles cannot stand up by balancing (because they are unbalanced). Hence those loads are transferred to bolts anchored deep in concrete via a reinforced attaching point at the base of the base. CIT has some other pics of the reinforced insides on their site I believe - essentially double wall thickness. The thinner, open expanses of the base are where they are weakest and also, except for on 9-11, where they will always break as they have been designed to. I had one guy arguing with me that the heat stains INSIDE the base were from a weed wacker. Edited by bretwalda, Mar 24 2009, 09:39 PM.
Posts: 205 Group: Members Member #173 Joined: 01/21/08

Firefight: Inside the Battle to Save the Pentagon · Pentagon