Tek-Tips is the largest IT community on the Internet today!

Members share and learn making Tek-Tips Forums the best source of peer-reviewed technical information on the Internet!

Register Log in
  • Congratulations TugboatEng on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Adding strong steel behind the L bracket so it reaches rsj beam 1

Status
Not open for further replies.
Khaleed2

Khaleed2

Structural
Joined
Nov 20, 2020
Messages
1
Location
GB
Hi

I have lowered the floor in my building. So when I lowered the steel beam for some reason it ended up being about 7 mm to 10 mm shorter
So the holes in the L bracket would not line up, to line them up I added 3 L brackets behind the L bracket.

But someone has told me you have increased the leverage by 1 cm and more pressure will be exerted on the nut.

I have added a photo for you to see

Can any one explain how much more pressure will be exerted on the nut and will it cause it to be unsafe

Also if I was to add a vertical wooden beam on the right of L bracket would that make it ok again
 
 https://files.engineering.com/getfile.aspx?folder=3e987ad6-c033-4ebc-a9bf-349bfdb00331&file=Screenshot_20201120-223352.png
Sort by date Sort by votes
You have lengthened the lever arm by 1 cm, depending on the eccentricity under correct condition, the increase can be seem large or small. Can you replace the upper bolts with 1 size larger, and with at lease 2 or 3 threads beyond the nut in tightened position (check the code to see what exactly is required).
 
Upvote 0 Downvote
You should get in contact with a local engineer to assess and help you. This site is for engineering professionals, not free engineering advice to non engineers/DIY questions.

Yes you have increased the lever arm if I'm understanding your scenario, is it safe, who knows based on what's been provided. The whole arrangement looks suspect from your very poor quality photo. So like I mentioned, if in doubt get someone local to take a look just in case.

 
Upvote 0 Downvote
It could be caused by image distortion, the wood beam seems distorted at the end that causing the bottom face is shorter than the upper. It wouldn't be hurt to have an engineer looks the problem and propose a better/long term solution.

image_rceydm.png
 
Upvote 0 Downvote
Status
Not open for further replies.

Similar threads

E-N-E ENG
  • Question Question
T-Bracket Beam Analysis
Replies
13
Views
9K
Stress_Eng
Stress_Eng
Refaat Faraj
  • Question Question
Increasing the deep beam capacity by adding a new concrete part on top of it.
Replies
7
Views
4K
Refaat Faraj
Refaat Faraj
reverbz
  • Question Question
Do you guys defer steel connections? Should it be on the contact?
2
Replies
22
Views
18K
phamENG
phamENG
DoubleStud
  • Question Question
Adding a shed roof to the backyard
Replies
4
Views
9K
phamENG
phamENG
AFP0592
  • Question Question
Steel Cranked Beam End Supports
Replies
10
Views
13K
AFP0592
AFP0592

Part and Inventory Search

Sponsor

Back
Top