Concrete encased coupling beams

[ahmedhegazi]

Hi all

I am in process of designing a coupling beam connecting two R.C. walls where I have very high shearing force, which is exceeding the maximum limit as per ACI318; I have a thought to use steel plate inside the R.C. coupling beam, my concern are the follows.

1) Is it allowed to use steel plates or I should use I section?

2) What development should I provide for this steel plate inside my R.C wall?

3) What forces should I design my sheer studs that will that will be welded on the steel plate?

Note: - My building is in Seismic category C

 

[csd72]

Look up the archives for structure mag and structural engineer, one of them had an article on this exact thing in the last couple of years.

 

[jondandrews]

Did you ever find any information on this? I am looking into the same thing.

 

[csd72]

http://www.structuremag.org

http://www.gostructural.com/