×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

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

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

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

(OP)
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

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

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).

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

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.

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

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.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members! Already a Member? Login


Resources

eBook - The Future of Product Development is Here
Looking to make the design and manufacturing of your products more agile? For engineering and manufacturing organizations, the need for digital transformation of product development processes just became more urgent than ever so we wanted to share an eBook that will help you build a practical roadmap for your journey. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close