Why not use glued laminated timber for columns supporting crane beams? My factory has them in a very similar situation as this case. And they have been doing their job properly since 1940! Not only are the columns of glued laminated timber construction, the support beams for the steel rails and...
This post has digressed from the original topic of structural glued laminated timber into glued veneers and plywood.
Structural glued laminated timber is made of dimension lumber with grain orientation parallel. It can be straight or curved. It is utilized for structural arches and beams and...
Casein adhesive was utilized in the glued laminated timber industry by and large until the 1960s. It is a good adhesive, not waterproof of course, so can only be used for interior applications. Waterproof resorcinol and phenol resorcinol adhesives were used during World War II for marine...
The Peshtigo Fire was on 08 October 1871 the same night as the Chicago Fire. The Peshtigo Fire destroyed 1.2 million acres and killed between 800 and 2,000 people. It destroyed much more than just the village of Peshtigo and adjacent areas.
At that time Peshtigo was home to the world's largest...
The structural glued laminated timber industry in North America is now 80 years old. The very first glued laminated timbers made in North America were in 1934 at Peshtigo, Wisconsin. Those arches are still standing and supporting the roof of the school library in Peshtigo.
9 inches was a standard width for structural glued laminated timber prior to circa 1970. You indicated the beam was installed in 1993. Do you possibly mean 1963 or some other pre-1970 date? 8 3/4 inch is today's standard width and it has been since circa 1970.
Sided and molded dimensions vary...
It is a very typical "tied arch" framing. Rilco Laminated Products, Inc. was a subsidiary of Rock Island Lumber Company, a Weyerhaeuser family endeavor. In 1960 Rilco was purchased outright by Weyerhaeuser and became the Rilco Engineered Wood Products Division of Weyerhaeuser Company. They had...
Ritz,
I do not have much information on design of such members. I did find a 1950s competitors brochure on 24" o/c glued laminated tied-segment arches. Glued laminated timber curved top chord and solid lumber gusseted horizontal bottom chord.
Andreas
Our factory buildings in Peshtigo, WI are full of tied-segment glued laminated timber arches. Some date back to 1940. All doing just fine aftr all these years. The old Thompson Boat factory across the alley has tied segment arches dating to 1949 that are still holding. I am aware of dozens and...
That's only 9,072 BF and that piece would be 15,963 pounds in Southern Pine. Of course, standard industry width is 10 3/4" not 11". We've made a single piece up to 45,000 pounds. Fun moving that thing around in the factory!
Yes, get in touch with several manufacturers. Contact American Istitute...
Does not sound like this is a bowstring truss. Sounds like a glued laminated tied-segment. These were very common in agricultural and light industrial and commercial buildings in the 1940s - mid 1960s. Are there any vertical and diagonal webs that connect curved upper chord to the horizontal...
P-149 will be the identification of the manufacturer. Plant #149 as licensed by the American Institute of Timber Construction (www.aitc-glulam.org).
It took a while, but I dug out some old records. P-149 was the Weyerhaeuser Company plant at Cottage Grove, Oregon. This operation was closed down...
Structural glued laminated timber may be more readily available. And most often it is less costly than proprietary Parallam. Also, glued laminated timber can be manufactured to curved shapes.
I disagree that douglas fir is more stable than Southern Pine.
Glued laminated timber will most often be less costly than large solid timbers. And they will not shrink and twist like large solid timbers.
Do you mean vertically laminated?
American Institute of Timber Construction (AITC) has design values etc. for this.
It is not the most common type of glued laminated timber member, but it certainly can be done and has been done. I can picture two projects here in Mpls area I furnished with...
Hi. No, I do not work for Sentinal Strutures. I do however, work for Sentinel Structures, Inc. Ya, nit picking I know. But spelling is important to me!
Structural glued laminated timber has been made at Peshtigo, Wisconsin since 1934. This was the PIONEERING effort in North America. The firm has been known as Sentinel Structures, Inc. since 1972. www.sentinelstructures.com
Water resistant casein adhesive was typically used in the glued...
