bond beam
bond beam
(OP)
practically speaking, how deep can a bond beam be?
thank you for your thoughts
thank you for your thoughts
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RE: bond beam
thank you.
RE: bond beam
Lintel (the longitudinal "beam" that occurs over window and door openings) can be any height required - maximum, I suppose, would be 4 or 5 courses, though usually you don't get that deep. We use 24" deep (3 course) lintels quite often but beyond that - rarely.
RE: bond beam
The lintel bond beam I am requiring is 25' long and will support the double tees of the roof that span 58'.
RE: bond beam
RE: bond beam
RE: bond beam
RE: bond beam
RE: bond beam
RE: bond beam
First I would use a steel beam. This is just my opinion, but I wouldn't use a bond beam that is over 32" deep (4 courses). Beyond that I think there is too much of a chance for the masonry lifts and joints to have imperfections that would limit the real capacity. Second I would use steel, as many above have suggested. I would also consider kicking the beam, if practical, to the roof structure in order to help the unbraced length. Third, how are you taking the lateral (wind/seismic) loads over the doorway? An 8" deep beam spanning 25' is way to long.
Fourth, I would look into arching action. If your roof is
high enough, say 13-15 feet over the top of the openning you can distribute some of the load into the jambs without having to support it with a lintel. Look into it in ACI 530 because there are some special conditions to consider.
Fifth, if you can't get a beam that is narrower than 7 1/2" to work, then talk to the architect and see if a 12" wide beam will work with the door hardware.
These are just some options. Let us know what you intend to do.
RE: bond beam
There are a lot of people who look here for information that can be helpful to them. A lot of those people are from throughout the United States, Canada and internationally working as engineers. Terminology is not something that is strictly universal to the profession and can very between locations.
What I am saying is take it easy on blasting people who post here. A lot of times they may be students or younger engineers who we should be here to help - not to scare away. We have a number of younger engineers at my firm and we always tell them to not be afraid of asking a question. If we blast people every time they post if they don't sound like they have the same level of expertise as us, then how helpful would we be?
Just my 2 cents worth. I'll get off my soapbox.