Rigidity center of inclined walls?
Rigidity center of inclined walls?
(OP)
I just can't find the equations for rigidity center of inclined walls? Can you help me?
Thank you in advance
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Rigidity center of inclined walls?
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RE: Rigidity center of inclined walls?
Inclined in plan not in elevation!
RE: Rigidity center of inclined walls?
RE: Rigidity center of inclined walls?
This is plan view of few walls.
PS: I'm searchig for general expressions for rigidity center. Think that I found them:
Xr=Σi(Kyi*Xi)/ΣiKyi
Yr=Σi(Kxi*Yi)/ΣiKxi
I just have to add inclination koeficient?
RE: Rigidity center of inclined walls?
RE: Rigidity center of inclined walls?
I agree with ishvaaag that shearwall rigidities are vector quantities. Each of them can be represented in vector notation by a.i + b.j where i and j are unit vectors in the x and y direction. But, assuming the rigidity is the same in the opposite direction, which is usually true, then each of them can also be represented as -a.i -b.j.
Is there necessarily a single center of rigidity for an arbitrary group of walls? I would guess that the answer is no because some can act in the opposite direction. It depends upon the forces and the location of forces acting on them.
However, I have not thought it through, so do not want to commit to a particular answer at this moment. It is nearly midnight and I am going to bed. Nighty night.
BA
RE: Rigidity center of inclined walls?
BAretired:
Yes, it's undependable from the load direction!
RE: Rigidity center of inclined walls?
I believe you are correct. The method you indicated in your earlier post should be okay.
BA