relative rigidity

[PEin2010]

How to calculate cantilever relative rigidity for a shear wall? H/D ratio is known. I know it is in Lindeburg 8th edition, but has disappeared from 9th edition. Any help is greatly appreciated. Thanks!

 

[kevo_55]

I don't think this kind of stuff is in Lindeburg, it's pretty advanced for the Civil (national) exam.

Let's let H/D=A.

For a cantilever the relative rigidity is: 4(A^3)+ 3A

For a fixed-fixed shear wall the relative rigidity is: A^3 + 3A.

I hope this helps!

 

[McEngr]

I don't think this kind of stuff is in Lindeburg, it's pretty advanced for the Civil (national) exam.
Let's let H/D=A.

For a cantilever the relative rigidity is: 4(A^3)+ 3A

For a fixed-fixed shear wall the relative rigidity is: A^3 + 3A.

I hope this helps!

You can also get this from your steel book in the beam diagrams if you know structural mechanics well enough to trick it...

 

[TheSerg]

I don't think this kind of stuff is in Lindeburg, it's pretty advanced for the Civil (national) exam.
Let's let H/D=A.

For a cantilever the relative rigidity is: 4(A^3)+ 3A

For a fixed-fixed shear wall the relative rigidity is: A^3 + 3A.

I hope this helps!

You can also get this from your steel book in the beam diagrams if you know structural mechanics well enough to trick it...

Reinforced Masonry Engineering Handbook, 6th Ed has them for cantilever and fixed piers.