Page 357 - Forensic Structural Engineering Handbook

10.44 CAUSES OF FAILURES

(a)

(b)
FIGURE 10.8 Brooklyn wall. (a) Unbraced second-story masonry wall collapsed during con-
struction, breaking through adjacent roof. (From ENR, April 5, 1990.) (b) Remnant of concrete
block wall built on widened top flange of wide flange beam. (From R. T. Ratay Engineering, P.C.)