Advice on RSJ's

[freddiemercurystwin]

Here you go geraint, just for you: http://www.corusconstruction.com/en...n_of_beams_structural_steel/estimating_sizes/

 

[geraint]

OK ask an SE how they come up with typical beam sizes at the drop of a hat then?

Only someone very naive (or stupid) would take something derived from a rule of thumb on a Forum literally.

because they know what they are talking about... have done their degrees etc... most cases they can look and do the calcs on the back of a fag packet. simple for them.. might look easy to you.... but

 

[geraint]

Here you go geraint, just for you: http://www.corusconstruction.com/en...ms_structural_steel/estimating_sizes/[/QUOTE]

i could post every source of building knowledge on here..... does that make me QUALIFIED in any... stick to your five day courses. in six weeks you could be the best and most qualified builder in britain....

are you sure your other name is not banal.....

 

[freddiemercurystwin]

geraint, I draw up Building Regs drawings for a living.

 

[geraint]

geraint, I draw up Building Regs drawings for a living.

so who do you use for your structural elements......

or do you guess....

 

[RonnyRaygun]

I was only gone a few minutes...

Geraint,

if Freddy was called out by a client to look at a job, and was asked what size steel would be required, he would use the rule of thumb of span / 20 to give a ball park section size. Then he would say that he would need to get a full set of calcs done by a structural engineer.

If I went to site, I would initially tell the client or architect exactly what I just told the OP. I would also say that I would have to do calcs to prove what I am saying is correct.

The OP does appear to be aware that he requires the services of a structural engineer...he's just built an extension and will have had BC out on numerous occasions. I really don't think it's likely he's going to go to the nearest steel fabricator and say "Some bloke on a DIY website told me this is what size steel I need".

He came here for advice, and I think he got some good advice off both Freddy and me. Neither of us said at any point that our advice would be good enough for building control.

If you've got an axe to grind due to previous posts, don't hi-jack someone else's post to do it.

 

[geraint]

geraint, I draw up Building Regs drawings for a living.

you must have done a two day course then..........

 

[geraint]

If you've got an axe to grind, don't hi-jack someone else's post to do it.

i do not have an axe to grind.. you have the knowledge to look and then say.. go back to the office and prove it..

as to hijacking.... i dont think anyone in there right mind could suggest any section size on a forum. hence my content..

and by the way. i spent 20 years in structural steel.

 

[RonnyRaygun]

I'm sorry, your response was a little wooly...

 

[geraint]

geraint, I draw up Building Regs drawings for a living.

so you do your rule of thumb..... the se confirms it.... but no thought for the builder or client as to how it effects them... height width etc.

 

[freddiemercurystwin]

You've still got your selective hearing I see geraint!

BTW I've been drawing up Building Regs drawings for 22 years if you really wanna get anal about things?

 

[geraint]

I'm sorry, your response was a little wooly...

please tell me why..

 

[geraint]

You've still got your selective hearing I see geraint!

BTW I've been drawing up Building Regs drawings for 22 years if you really wanna get anal about things?

please read the post above your quote...

 

[freddiemercurystwin]

Which one?

 

[geraint]

could it have been the one that i quoted.........