More art than science?
In modern times it's become more science than art. Most structures these days use a lot of glulams for structural work. We don't have the stands of virgin timbers like in the 1800's and the structural behavior is more predictable.
For instance: I oversaw the rehabilitation project of a covered bridge about 11 years ago. The bridge was built in 1876. It had a Paddleford truss with added arches. Each original lower chord of the truss was comprised of two x 4 inch wide, 16 in tall and over 120 feet long pieces of eastern hemlock (we think). They ran from abutment to abutment and sandwiched the ends of the posts and diagonals. They were replaced with pressure-treated SYP (southern yellow pine) laminated beams.
Messages In This Thread
- Material: Wood
Rob Macks/Laughing Loon CC&K -- 1/8/2017, 10:39 am- USFS Wood Handbook *PIC*
Dan Caouette (CSCWC) -- 1/8/2017, 1:40 pm- Re: USFS Wood Handbook
Dan Thaler -- 1/8/2017, 2:13 pm- Re: USFS Wood Handbook
Dan Caouette (CSCWC) -- 1/8/2017, 4:15 pm- Re: USFS Wood Handbook
Rob Macks/Laughing Loon CC&K -- 1/8/2017, 5:16 pm- Re: USFS Wood Handbook
Dan Caouette (CSCWC) -- 1/8/2017, 6:35 pm- Re: USFS Wood Handbook
Bill Hamm -- 1/9/2017, 1:06 am- Re: USFS Wood Handbook
Dan Caouette (CSCWC) -- 1/9/2017, 6:08 am
- Re: USFS Wood Handbook
- Re: USFS Wood Handbook
- Re: USFS Wood Handbook
- Re: USFS Wood Handbook
- Re: USFS Wood difiance
jaybabina -- 1/9/2017, 8:11 am- Re: USFS Wood difiance *PIC*
Dan Caouette (CSCWC) -- 1/9/2017, 12:32 pm- It ain't like it used to be - wood
jaybabina -- 1/11/2017, 4:46 pm- Re: It ain't like it used to be - wood
JohnAbercrombie -- 1/11/2017, 10:34 pm- Re: It ain't like it used to be - wood
Marc Upchurch -- 1/12/2017, 12:49 am- Re: It ain't like it used to be - wood
Bill Hamm -- 1/12/2017, 1:03 am- Re: It ain't like it used to be - wood
Marc Upchurch -- 1/12/2017, 1:28 am- Re: It ain't like it used to be - wood
Bill Hamm -- 1/13/2017, 12:06 am
- Re: It ain't like it used to be - wood
- Re: It ain't like it used to be - wood
- Re: It ain't like it used to be - wood
- Re: It ain't like it used to be - wood
Bill Hamm -- 1/12/2017, 12:59 am- Re: It ain't like it used to be - wood
Paul Sylvester -- 1/12/2017, 5:38 am- Wow! - wood
Rob Macks/Laughing Loon CC&K -- 1/12/2017, 10:42 am- Re: Wow! - wood
Nick Schade - Guillemot Kayaks -- 1/12/2017, 11:56 am
- Re: Wow! - wood
- Re: It ain't like it used to be - wood
- Re: It ain't like it used to be - wood
- It ain't like it used to be - wood
- Re: USFS Wood Handbook
John Messinger -- 1/9/2017, 2:02 pm- Re: USFS Wood Handbook
Bill Hamm -- 1/12/2017, 1:07 am
- Re: USFS Wood Handbook
- Re: Material: Wood
Nick R. -- 1/8/2017, 2:44 pm- Re: Material: Wood
Rob Macks/Laughing Loon CC&K -- 1/8/2017, 3:05 pm
- Re: Material: Wood
Mike Bielski -- 1/8/2017, 10:10 pm- Re: Material: Wood
Bill Hamm -- 1/9/2017, 1:08 am- Re: Material: Wood
Richard Mertins -- 1/9/2017, 8:11 am- Re: Material: Wood
Thomas Duncan -- 1/9/2017, 9:21 am- Re: Material: Wood
scottbaxter -- 1/9/2017, 10:04 am- Re: Material: Wood
Bill Hamm -- 1/12/2017, 1:10 am - Re: Material: Wood
- Re: Material: Wood
- Re: Material: Wood
- Re: Material: Wood
Steve Solomon -- 1/9/2017, 4:26 pm- Re: Material: Wood
dave koslow -- 1/10/2017, 3:11 pm- Re: Material: Wood
Steve Solomon -- 1/10/2017, 3:18 pm- Re: Material: Wood
dave koslow -- 1/11/2017, 10:53 am- Re: Material: Wood
Bill Hamm -- 1/12/2017, 1:22 am - Re: Material: Wood
- Re: Material: Wood
- Re: Material: Wood
- Re: USFS Wood Handbook
- USFS Wood Handbook *PIC*