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Re: Wood Moment Frame in historical building - retrofit

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why not add some diagonal tie rods since you have lots of height?

Stan Scholl, P.E.
Laguna Beach, CA

On Thu, 04 Oct 2001 20:56:16 -0700 "jian zhou" <jiz290(--nospam--at)hotmail.com>
writes:
> We are currently working on a project for retrofiting a historical 
> building
> The buliding is wood-framed structure with bow string truss (120' 
> span).
> The building is 120'x200'x50' high with knee bracings at both ends.
> The trusses are supported by large timber section columns (3-6x12),
> There is no shear wall existed along the truss direction and wood 
> bracing
> is provided as lateral support in the perpendicular direction.
> 
> Based on UBC, wood moment frame system is not allowed
> (even though the column is very heavy and the building looks very 
> good along
> truss direction?). Could somebody having similar experience give 
> some input 
> on how to retrofit moment-resisting connection instead of adding 
> shearwall 
> or using other options, Right now it is not possible to add shear 
> wall or 
> bracing along the truss direction.
> 
> Thanks very much.
> 
> JZ
> 
> 
> 
> 
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