Need a book? Engineering books recommendations...
CONCRETE-Construction Joint in Shearwall[Subject Prev][Subject Next][Thread Prev][Thread Next]
- To: seaoc(--nospam--at)seaoc.org
- Subject: CONCRETE-Construction Joint in Shearwall
- From: JAMES S LAI <jslaicse(--nospam--at)earthlink.net>
- Date: Sun, 05 Apr 1998 20:38:42 -0700
In addition to roughening the joint suggested by Mr. Richard Phillips, several alternates for shear transfer are permissible in the Building Code: Consideration should be given to design using shear-friction under Code Section 1911.7 for in-plane shear transfer. In certain instance of very high design shear strength demand combined with low axial strength, properly developed reinforcing bars positioned and orientated at 45 degree to the horizontal joint may be designed to transfer the required shear strength in direct tension. Finally, shear keys may also be designed to transfer shear forces through bearing strength. However, I would not suggest shear keys be spaced closer than two times the spacing of vertical bars. Length of the shear key must be designed and capable to deliver the required tributary shear strength. Good luck. James S. Lai, S.E.
- Prev by Subject: Re: concrete vibrational analysis
- Next by Subject: Consideration of Column Cracking
- Previous by thread: Fwd: News Funnies
- Next by thread: Re: Aluminum Specification