If the cables are removed, the canvas is laying on the ground.
T. William (Bill) Allen, S.E.
ALLEN DESIGNS
Consulting Structural Engineers
> -----Original Message-----
> From: Scott Maxwell [mailto:smaxwell@umich.edu]
> Sent: Friday, May 02, 2008 3:39 PM
> To: seaint@seaint.org
> Subject: Re: Wind Uplift on Awning
>
> Bill,
>
> In my opinion it would be components & cladding unless it is an element
> that is directly used to support the whole "structure"...and even then you
> might still have to check both C&C and MWFRS. Think of a stud in an
> exterior shear wall that acts as the end post of the sheallwall for
> overturning. That stud would first have to be checked/design for C&C wind
> loads for out of plane bending and shear, etc. Then it would also need to
> be checked for MWFRS loads for in plane shear acting on the shearwall that
> results in tension compression.
>
> As to the specifics, I don't have my ASCE 7-05 in front of me at the
> moment, so I cannot help with that at the moment. I can take a look later
> if someone else has not already offered one.
>
> Regards,
>
> Scott
> Adrian, MI
>
> ..... Original Message .......
> On Fri, 2 May 2008 15:24:16 -0700 "Bill Allen" <t.w.allen@cox.net> wrote:
> >I have a client who is creating a shade area by attaching a canvas awning
> between two exterior trellises. The canvas panels are 22'-0" x 16'-6" and
> there is a gap of about 1'-8" between them. There area a total of three
> canvas panels to form a shaded area of about 22'-0" x 38'-0".
> >
> >
> >
> >I'm a noobie when it comes to the ASCE 7 wind load provisions and I'm not
> really sure on what to use to calculate the wind uplift. My interest is in
> the design of the cables and particularly the attachment of the cables to
> the trellises. In my mind, I don't think these items are C&C, but I could
> be wrong.
> >
> >
> >
> >What should I use, Method 2, MFRS or C&C?
> >
> >
> >
> >From what table should I obtain the gust coefficients?
> >
> >
> >
> >TIA,
> >
> >
> >
> >T. William (Bill) Allen, S.E.
> >
> >ALLEN DESIGNS
> >
> >Consulting Structural Engineers
> > V (949) 248-8588 .
>
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