Coupling Beam- ShearWall
Coupling Beam- ShearWall
(OP)
Hi All,
I would like to know your views about the coupling beam design and coupling shear wall connection.
i am having a stair core as shown below screenshot.

Do you think a coupling beam between two walls as shown in the images are good?
I believe that since the walls are out of planes, coupling between these walls are not a good idea. Do you agree or not ?
(However i have to provide a beam to support the slabs. And it can be as deep as 1200mm).
Is openings / Sleeves are allowed to provide in the coupling beams ? If yes , where is the ideal location and approximate allowable sizes ?
Any comments and tips are really appreciated
Thanks
Akhil
I would like to know your views about the coupling beam design and coupling shear wall connection.
i am having a stair core as shown below screenshot.

Do you think a coupling beam between two walls as shown in the images are good?
I believe that since the walls are out of planes, coupling between these walls are not a good idea. Do you agree or not ?
(However i have to provide a beam to support the slabs. And it can be as deep as 1200mm).
Is openings / Sleeves are allowed to provide in the coupling beams ? If yes , where is the ideal location and approximate allowable sizes ?
Any comments and tips are really appreciated
Thanks
Akhil






RE: Coupling Beam- ShearWall
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: Coupling Beam- ShearWall
About the location i agree with KootK, somewhere in the midle will be fine, you have to ancorate the reinforment from the beam so i will suggest at least 1 m left or right of RC wall.
How high is the building ? Number of story's? beucase from what thickness you have there is at least 10story tall building.
Let me show you a example, this is a central core of a 12 story building, PGA 0.30g:
Now this are the bending moments in the bottom RC coupled beams from E-V earthquake attack:
As you can see there are almost none bending moment.
Now in the same building lets look at this:
These are 2 isolated walls with RC coupled beam in the same direction as the one above.
As you can see is a big difference between 20 and 350 kNm bending moment.
Try it for youself in your case and tell us what you found out.
RE: Coupling Beam- ShearWall