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

required steel tubes sizes

required steel tubes sizes

required steel tubes sizes

What is the required steel tubes sizes for this sketch?

Rectangular or square tubes.

And it has to withstand a maximum of 120 km/h wind load.
The cover is pvc 500g/m2

RE: required steel tubes sizes

The truss looks too shallow. I would start by making a pin at the crown and at the bottom of each column. That makes it a 3 hinged arch which is statically determinate. You can solve it quickly and get a rough idea of the magnitude of the axial forces and moments occurring at various points.

You may decide to give the truss and possibly the columns a tapered shape, similar to many pre-engineered buildings.


RE: required steel tubes sizes

Quote (wrightpeter)

When difficulties accumulate, the student simply loses interest, without which even the most brilliant teacher will not be able to convey knowledge to the proper extent. For example, I cannot write my essay. Unfortunately, the general school curriculum is designed for the average student and does not take into account these nuances. Let's think about how we can subtly, without pressure, increase motivation to study.

Off topic! Quit making excuses! You can write your essay, and you can do it without cheating. Address the OP's question or else start your own thread.

Merry Christmas.


RE: required steel tubes sizes

PAretired, if you click on his link, wrightpeter seems to be selling or encouraging, essay writing services to students.


RE: required steel tubes sizes


Okay, I missed that. That makes him even less worthy to be contributing to this thread in my humble opinion. It means he is not only in favour of cheating, he is promoting it and presumably profiting by it.

Merry Christmas to all.


RE: required steel tubes sizes

I also missed the point/link, needs a red flag.

It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)

RE: required steel tubes sizes

I see that the post is listed as having been deleted. Yet, I still see it and the sales link still works. Re-Flagged the post.


RE: required steel tubes sizes

The question was asked by a person who does not want to figure it out himself

RE: required steel tubes sizes

The OP never responded. I suggest the entire thread be deleted.


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


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