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RE: Shear

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You will still get the arching action with a concentratted load close to the
supports, but you need to make sure the bottom steel is anchored adequately.
The simple shear design provisions don't account for this, and I think
that's why it requires design for the higher shear at the face.

I don't know what you mean by "a shear mechanism". The mechanism is a strut
and tie.

-----Original Message-----
From: Scott Maxwell [mailto:smaxwell(--nospam--at)]
Sent: Tuesday, July 30, 2002 7:42 AM
To: seaint(--nospam--at)
Subject: RE: Shear

When you now place a (significant) concentrated load between the face of
the support and d from the face of the support, the arching mechanism is
no longer sufficient to carry this type of load, so it wil be necessary to
carry this load by a shear mechanism as well.  Thus, the reason why you
must now take Vu at the FACE of the support.

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