Reversal effect on cantilever beams
Reversal effect on cantilever beams
(OP)
Hi everyone,
Does cantilever beams affected by reversal stress caused by earthquakes and how it is affected?
Thanks in advance.
Does cantilever beams affected by reversal stress caused by earthquakes and how it is affected?
Thanks in advance.






RE: Reversal effect on cantilever beams
This is the minimum design requirement. If you have a configuration or load path that induces a net uplift greater than the amount stated above you have to design for that.
RE: Reversal effect on cantilever beams
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Reversal effect on cantilever beams
another day in paradise, or is paradise one day closer ?
RE: Reversal effect on cantilever beams
RE: Reversal effect on cantilever beams
RE: Reversal effect on cantilever beams
In addition does the cracks occurs diagonally or in vertical motion for cantilever beams if earthquake occurs?
RE: Reversal effect on cantilever beams
The uplift requirement is it's own load case based on an assumed upwards acceleration of 1.2g. So it's a net uplift of 0.2g as detStr mentioned. More info here: Link.
Not quite sure what you're asking here. Can you elaborate? In a concrete member, you can have diagonal cracks or vertical cracks depending on the predominance of moment or shear at the section being considered. For a concrete cantilever under 0.2g uplift, it's likely to be a fairly vertical flexural crack near the support I would think.
I like to debate structural engineering theory -- a lot. If I challenge you on something, know that I'm doing so because I respect your opinion enough to either change it or adopt it.
RE: Reversal effect on cantilever beams