Tie beams/Footing girders
Tie beams/Footing girders
(OP)
Aside from controlling differential settlements of foundations, structurally speaking, what are the uses of tie beams/footing girders in a structure? I noticed, some engineers model their structure with tie beams while some are not. why?






RE: Tie beams/Footing girders
1. I use tie beams to carry lateral loads, if needed. They can be supporting masonry walls.
2. If you are relying on roof or floor diaphragm, you will need tie beams to act as chords for the diaphragm. This must be evaluated for tensile and compressive loads.
It really depends on what these elements are being used for. We simply can not add them to the structure without clear purpose.
I hope this helps.
Regards,
Lutfi
RE: Tie beams/Footing girders
www.SlideRuleEra.net
RE: Tie beams/Footing girders
carry wall loads
distribute shear to multiple footings
take overturning out of an eccentric footing
transfer vertical load to adjacent footings
I hope this helps answer your question!
RE: Tie beams/Footing girders
RE: Tie beams/Footing girders
RE: Tie beams/Footing girders
I could also see using it to tie in lateral systems and delver the lateral load to the earth in a more competent manner.
I could also see using it if the structure was on a hillside and I was concerned about cut/fill settlements or other instabilities from a geotechnical consideration.
I could also see using it if there were plans (current or future) to excavate beside footings where lateral forces were intended to be resisted by earth pressure.