Need a book? Engineering books recommendations...

Return to index: [Subject] [Thread] [Date] [Author]

RE: Wind Uplift on Awning

[Subject Prev][Subject Next][Thread Prev][Thread Next]
But it is an element that is directly used to support the whole "structure".
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(--nospam--at)umich.edu]
> Sent: Friday, May 02, 2008 3:39 PM
> To: seaint(--nospam--at)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(--nospam--at)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 .
> 
> ******* ****** ******* ******** ******* ******* ******* ***
> *   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
> *
> *   This email was sent to you via Structural Engineers
> *   Association of Southern California (SEAOSC) server. To
> *   subscribe (no fee) or UnSubscribe, please go to:
> *
> *   http://www.seaint.org/sealist1.asp
> *
> *   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you
> *   send to the list is public domain and may be re-posted
> *   without your permission. Make sure you visit our web
> *   site at: http://www.seaint.org
> ******* ****** ****** ****** ******* ****** ****** ********


******* ****** ******* ******** ******* ******* ******* ***
*   Read list FAQ at: http://www.seaint.org/list_FAQ.asp
* 
*   This email was sent to you via Structural Engineers 
*   Association of Southern California (SEAOSC) server. To 
*   subscribe (no fee) or UnSubscribe, please go to:
*
*   http://www.seaint.org/sealist1.asp
*
*   Questions to seaint-ad(--nospam--at)seaint.org. Remember, any email you 
*   send to the list is public domain and may be re-posted 
*   without your permission. Make sure you visit our web 
*   site at: http://www.seaint.org 
******* ****** ****** ****** ******* ****** ****** ********