tie beam
tie beam
(OP)
We have to design two storey Office building, the architect ask me, at what depth should the TIE BEAM be located from NGL. I suggested that it can be located at the the midpoint of the portion of the column buried from NGL to its depth, I suggested also that it can support the masonry as masonry footing when there some situation that the masonry wall should be place over the tie beam... I'm not so sure with what I suggested but in my college day my instructor said that there is no such literature about footing tie beam. It can be designed in such way that the load consideration is from soil pressure acting upward or it can be designed that the load consideration is from soil pressure over the tie beam and load from walls supporting by this... It is my question up to now how to design properly the tie beam??.. what load to consider in designing tie beam???... at what depth should this be located from NGL.... Guys... can you give me tip about this.... Do yo know some reference about the tie beam that can you give me.... your input will be highly appreciated... thanks....






RE: tie beam
1. Keep the spread footings in their positions during seismic events;
2. Serve as grade beams to redistribute vertical loads through moment and shear in the event of differential settlement.
3. Serve as strip footings to support interior or exterior walls.
4. Serve as grade beams over a pile foundation to link the pilecaps and support the structure above.
What is your application? Any of these?
I generally place the top of the tie beams for 1, 2, and 3 flush with the top of the spread footings. For 4, The tie beam is placed over the pilecap.
Mike McCann
McCann Engineering
RE: tie beam
RE: tie beam
RE: tie beam