Need a book? Engineering books recommendations...

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

RE: PSL Beam creep

[Subject Prev][Subject Next][Thread Prev][Thread Next]
I believe the same wet use factors for E apply to PSL's

> -----Original Message-----
> From: Barry Welliver [mailto:barrywelliver2(--nospam--at)earthlink.net]
> Sent: Tuesday, December 11, 2001 4:00 PM
> To: seaint(--nospam--at)seaint.org
> Subject: RE: PSL Beam creep
>
>
> I'd take exception to this.
>
> Barry H. Welliver
>
> > -----Original Message-----
> > From: Michael Bryson [mailto:MBryson(--nospam--at)mhpse.com]
> > Sent: Tuesday, December 11, 2001 3:53 PM
> > To: 'seaint(--nospam--at)seaint.org'
> > Subject: RE: PSL Beam creep
> >
> >
> > If a load was applied while the beam was wet, then three or
> four times the
> > dry deflection is possible. I don't think PSL is any more or less
> > susceptible to creep or moisture effects than standard lumber is.
> >
> > -----Original Message-----
> > From: dmorrow(--nospam--at)swensonsayfaget.com [mailto:dmorrow(--nospam--at)swensonsayfaget.com]
> > Sent: Tuesday, December 11, 2001 2:19 PM
> > To: seaint(--nospam--at)seaint.org
> > Subject: PSL Beam creep
> >
> >
> > Has anyone had problems with PSL beams creeping (deflecting)
> when they are
> > wet or have elevated moisture contents?  I have a wet PSL beam which has
> > deflected 4x what it should be deflecting given the load
> conditions.  The
> > beam is wet (as is most of the other framing) because the
> > contractor didn't
> > close-in the structure during recent heavy rains and winds.  The
> > contractor
> > is saying the beam is under-sized.  PSL material seems more prone to
> > strength loss when wet and it seems to wick water more than
> > standard lumber.
> > Any experiences or thoughts.
> > TIA
> >
> >
> >
> > Dan Morrow
> > Swenson Say Fagét
> > 2124 3rd Ave. Suite 100
> > Seattle, WA  98121
> > 206-956-3745 (direct)
> > 206-443-4870 (fax)
> >
> > ******* ****** ******* ******** ******* ******* ******* ***
> > *   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
> > ******* ****** ****** ****** ******* ****** ****** ********
>
>
> ******* ****** ******* ******** ******* ******* ******* ***
> *   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
******* ****** ****** ****** ******* ****** ****** ********