Miragememories

Nov 11 2008, 10:53 AM

Looking at the critical column 79, I see 3 floor girders connected to it for each floor.

It would take quite a few 'shear stud' exempted floor girders to support the NIST contention that
their absence was a critical factor in the failure of column 79. The NIST used the wording "most of" and
not "some of" for very good reason, it was accurate.

Why would the NIST change their report from "most of the floor beams and girders" to just "most of the floor beams" without disclosing the reason for this major factual change? No appendix entry, nada.

They had the plans in 2004 which indicated most of the floor girders had shear studs, yet in 2008 they chose to re-interpret those same plans and state none of the floor girders had shear studs.

MM