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RE: Sloped Column

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I would suggest you design the rest of the building with R=5 (or as per your 
 code) but use a R=1.0 design for these four columns. Best regardsS A Masroor 

> From: behnamheydari_80(--nospam--at)
> Date: Wed, 21 Oct 2015 14:20:00 +0330
> Subject: [SEAINT-SEAOSC] Sloped Column
> To: seaint-seaosc(--nospam--at)
> Hello All
> I have an 8 stories steel structure
> in a high seismicity area for design, the architect used 4 sloped columns
> at the exterior walls, these unconventional columns are angled to create
> open spaces.
> I know that for some systems like
> diagrid, the building code requires that sloped column should remain elastic 
> during a seismic event, therefore, the response modification factor, R, 
> is required to be in the range of 1.0 to 1.5 but am I required to use these 
> values for my case too?  As I have just 4 sloped columns surrounding my
> structure and others are vertical (the system is an intermediate moment).
> Best Regards,


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