31 Ft Beams - Building & Construction - DIY Chatroom Home Improvement Forum
Advertisement


Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Building & Construction


CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Display Modes
Old 05-19-2017, 09:32 PM   #1
Newbie
 
Join Date: May 2017
Posts: 5
Rewards Points: 10
Default

31 ft beams


Today I finished removing an existing 26 ft exposed bean held up with 3 columns in my living room. I replaced the double 2x12 exposed beam beam with 2- 31 ft 18" 1-3/4 laminated beams and hung the joist with joust hangers.
I noticed when we were putting the up one of the beams was starting to determinate at come points on the bottom. It was in couple of places. The longest was about 1 ft and encompassed just one or 2 layers. Since the beams were 32 ft long we had to cut off 8" ft from each. We used one of the 8" pieces as a support nailed flat to the wall to sit the beam on as we raised it. When we went to pull it off the wall with a claw hammer it broke in half at the highest nail. It was nailed with the grain horizontal. Im wondering if they are that weak bending against the grain?

Advertisement

larrylwill12 is offline   Reply With Quote
Old 05-20-2017, 05:12 AM   #2
Member
 
Join Date: May 2008
Location: Near Philly
Posts: 2,371
Rewards Points: 1,660
Default

Re: 31 ft beams


Having a bit of trouble understanding this part:
"I noticed when we were putting the up one of the beams was starting to determinate at come points on the bottom. It was in couple of places. The longest was about 1 ft and encompassed just one or 2 layers."

The determinate in blue above, might delaminate have been what was desired in wording?

Advertisement

bob22 is online now   Reply With Quote
Old 05-20-2017, 09:48 AM   #3
Newbie
 
Join Date: May 2017
Posts: 5
Rewards Points: 10
Default

Re: 31 ft beams


Quote:
Originally Posted by bob22 View Post
Having a bit of trouble understanding this part:
"I noticed when we were putting up one of the beams it was starting to determinate at some points on the bottom. It was in couple of places. The longest was about 1 ft and encompassed just one or 2 layers."

The determinate in blue above, might delaminate have been what was desired in wording?
Hey man it was late and I was beat was up since 7am working on it.
Your right delaminate, spell checker got me again. Its not in thunderbird. There were a couple of ather mistakes also I corrected.
Would pictures help?

Last edited by larrylwill12; 05-20-2017 at 09:50 AM.
larrylwill12 is offline   Reply With Quote
 
Old 05-20-2017, 11:42 AM   #4
Member
 
Join Date: Apr 2017
Location: Michigan
Posts: 340
Rewards Points: 680
Default

Re: 31 ft beams


Quote:
Originally Posted by larrylwill12 View Post
Hey man it was late and I was beat was up since 7am working on it.
Your right delaminate, spell checker got me again. Its not in thunderbird. There were a couple of ather mistakes also I corrected.
Would pictures help?
Pictures always help
BIG Johnson is offline   Reply With Quote
Old 05-20-2017, 12:55 PM   #5
Newbie
 
Join Date: May 2017
Posts: 5
Rewards Points: 10
Default

Re: 31 ft beams


here are some pictures
Attached Thumbnails
31 ft beams-6.jpg   31 ft beams-5.jpg   31 ft beams-4.jpg   31 ft beams-2.jpg   31 ft beams-1.jpg  


Last edited by larrylwill12; 05-20-2017 at 12:57 PM.
larrylwill12 is offline   Reply With Quote
Old 05-20-2017, 04:56 PM   #6
Member
 
Join Date: Apr 2017
Location: Michigan
Posts: 340
Rewards Points: 680
Default

Re: 31 ft beams


Quote:
Originally Posted by larrylwill12 View Post
here are some pictures
That's totally normal.


Is it spanning 31' unsupported?
BIG Johnson is offline   Reply With Quote
Old 05-20-2017, 05:02 PM   #7
Member
 
jlhaslip's Avatar
 
Join Date: Dec 2009
Location: Edmonton, Alberta
Posts: 3,162
Rewards Points: 2,748
Default

Re: 31 ft beams


Agreed that these look pretty normal. Is there a chance that these LVL have been stored outside for a winter?
Usually they are covered and don't show issues unless they have been subject to weather.

Do you have a picture of the "stamp" on the LVL which may include a build date.
__________________
Quote:
Short of cutting off a body part, the worst that can happen in woodworking is manufacturing really nice looking kindling. --- Quoted from lenaitch

Last edited by jlhaslip; 05-20-2017 at 05:04 PM.
jlhaslip is offline   Reply With Quote
Old 05-20-2017, 05:49 PM   #8
Newbie
 
Join Date: May 2017
Posts: 5
Rewards Points: 10
Default

Re: 31 ft beams


Build date is 3/24/17

They were cleaner but we brought them in before building the supporting walls and tearing the old one out, so a lot of debris got on them.
The room is 30ft wall to wall. We cut them to 30'8" Had to slide one end into the hall door which was about 9" from the final placement. Upped one end, slid it into the ceiling cavity then upped the other and pulled it back into place. There are 2 - 18" x 1/34 x 30'8" 4 Jack studs under each end. Also a pony beam I had to build on top to the roof and side supports every 6' No support other than the side walls.
Attached Thumbnails
31 ft beams-84.jpg  
larrylwill12 is offline   Reply With Quote
Old 05-20-2017, 06:17 PM   #9
Member
 
Join Date: Apr 2017
Location: Michigan
Posts: 340
Rewards Points: 680
Default

Re: 31 ft beams


Why aren't the lvls touching? I was trained that they need to be tight together with proper nailing to get full loading capability. For a window header no big deal but for a 30' span I'd want it right. 30' unsupported is a long way. Did you pull a string and check sag? I'd bet it's considerable. I'm going to guess over a 1/2". I could be wrong. But I doubt it.


When I do 18' garage headers I jack up the centers unloaded to manufacture a slight crown until all lvls and wall sheating is nailed. Then I remove the jack.

Last edited by BIG Johnson; 05-20-2017 at 06:21 PM.
BIG Johnson is offline   Reply With Quote
Old 05-20-2017, 07:08 PM   #10
Newbie
 
Join Date: May 2017
Posts: 5
Rewards Points: 10
Default

Re: 31 ft beams


The engineer figured out for 3 16 inch lvls I asked if I could do 18" He said they were way more than enough. It was impossible to get the together due to having to cut the rafters wider than 3.5" get them in from an angle of 9-10"
This house was built in 1964 its a one story rancher. The living room was originally 10 x 30, then someone added a porch 10 x 30 with a concrete floor then someone enclosed the porch making the LR 20 x 30. 1/2 wood floor , 1/2 concrete. Really no way to get closer than 1/4 " due to the concrete slab. One side of the LR measured from the top of the beam is 114.25 the middle 114 and the other side 114. The trusses were joined with an overlap in the middle on top of the old beam and the original beam was 2 12 x 28 about 1" apart but held up with 3 columns. Some rafters are higher than others and some twisted. Its an old house. I straightened what I could and pushed up what I could and pulled down what I could. Its definitely better than what it was.

Advertisement

larrylwill12 is offline   Reply With Quote
Reply


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Elevated Platform & Playhouse - More beams or more posts? eko Building & Construction 17 09-15-2015 11:10 AM
Need suggestions on repairing rotted pergola beams shaftmaster Carpentry 5 04-27-2015 02:33 PM
Gazebo Beams and Joists and Posts power_tree Building & Construction 0 09-07-2013 06:55 PM
Stacking beams jklingel Building & Construction 32 12-16-2012 01:37 PM
PT beams warp or twist off posts? windowguy Building & Construction 5 09-06-2012 07:24 AM




Top of Page | View New Posts

 

Search Engine Friendly URLs by vBSEO 3.6.1