I am building a 16 ft tall masonry wall with a bond beam at the top and it supports hollow core slabs. The superintendent says that the code requires an intermediate horz. bond beam at 8 ft. Is that correct?
No, that is incorrect. There is no code, state or national, that requires a bond beam at 8 ft in non-seismic zones. The FBC 6th Ed. specifically exempts Florida from ANY seismic considerations so the seismic issue cannot apply. Florida's seismic category would not require intermediate bond beams in any case.
A designer might choose to include bond beams at an intermediate location but that would be a design choice NOT a codes issue.
What is the current code required geometry for a grade 60 #5 bar used in concrete masonry?
Table 6.1.8 in the current TMS 402-16 (current referenced edition by the 6 Ed FBC) call for Grade 60 reinforcing for a #3 through a #8 bar to have an inside bend diameter of 6 db and an extension of 12 db. For a #5 bar the tip of the extension would then be 15 db or 9.37" from the face of the bar.
Jerry Painter, FASTM
Don Beers, PE, GC
Find out more about Masonry
Pre-Apprentice Programs by visiting: