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Re: Hor. Shear Distribution

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I believe that the increase caused by the torsional shear is caused by
accidental torsion/eccentricity and not right from statics. I think this
is what the code is referring to specifically.

On Wed, 12 Jul 2000 julio.guerra(--nospam--at)theaustin.com wrote:

> Hello everybody,
> 
>      Since I was introduced to Structural Engineering I know that the
> torsional shear  due to eccentricity, must not be deducted from the direct
> shear in any case. Only torsional shear that increases the direct shear
> should be taken into account. The Code is a litle ambiguous when it says:
> "Provisions shall be made for the INCREASED shears resulting from
> horizontal torsion where diaphragms are not flexible" . It doesn't adress
> the reduction of the direct shear as it was in previous codes.
>      I was reading  SEA "Seismic Design Manual", Volume , example 25 and I
> noticed that they reduced the direct shear (page 79) due to torsional
> shear.
>      Am I too conservative because I don't use this reduction? I checked
> with several structural engineers and NONE of them use the reduction.
> How is everybody else doing regarding this matter?
> 
>      Thanks in advance for your response.
> 
> 
> 
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