Illinois Society of Architects · Chicago · leaf 237
rig-. 19. Fig. 20. Fig. 21. LEDGES—JOIST SUPPORTS.Section 733a, b, c. Fig. 19 (A) Corbelling to be not less than four Fig. 20 (A) Metal joist hanger allowable, courses of brick. (B) Vi iuch metal required. (B) Upper course shall project four inches. (C) The joists shall be protected from top to…
Architecture · Building · Architects
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
