Answers to IQ 11-2 challenge-August 2004


        

ANSWERS:  AUG 04 #2

 

Veneer walls are connected by unprotected steel

Veneer walls susceptible to curtain fall collapse

Lightweight truss will fail in 5 to 10 minutes of fire exposure

Lightweight wood truss will fail without warning

Wood structural members susceptible to burn-through

                    Truss has small surface-to-mass ratio

                    Gusset plates (sheet metal surface fastener) subject to

failure