Evaluation concerning tolerances when placing beams inside of each other
Evaluation concerning tolerances when placing beams inside of each other
(OP)
Hi,
Two beams one 60x60 and another 60x60 beam with a welded 8 mm sheet shall be placed inside a 500mm long 140x70x4 beam, see the attached picture. The material for all beams is S355J2H. I wonder if it will be a good fit. When I am checking the tolerances (EN 10210), I can see a scenario where it doesn't work, but I don't think it is probable. What do you guys think?
Two beams one 60x60 and another 60x60 beam with a welded 8 mm sheet shall be placed inside a 500mm long 140x70x4 beam, see the attached picture. The material for all beams is S355J2H. I wonder if it will be a good fit. When I am checking the tolerances (EN 10210), I can see a scenario where it doesn't work, but I don't think it is probable. What do you guys think?





RE: Evaluation concerning tolerances when placing beams inside of each other
Where is the potential problem in stack.
If horizontal then can thinner sheet be put in instead if required?
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Evaluation concerning tolerances when placing beams inside of each other
you can find the tolerances here:
http://www.sicamtubi.net/PDF/ENG/QUADRI/10.pdf
For BEAM 60x60 cross section
Max outside dimensioner
60->60.6
60,6+60,6+8=129.2
Hence
60,6x129.2
For BEAM 140X70X4 cross section
Min outside dimensioner
140-> 138.6
70 ->69.3
Max thickness:
4*4.1= 4.4
This means that the min inside dimensions is:
60.5*129.8
Beyond this i have straightness (which gives like 1mm), twist and squareness of sides.
So it wont fit in the worst case scanario (that all tolerances stack in the wrong direction), but should i be worried if i do like 20 pieces of these. I could increase the size but i want the slack to be as small as possible
RE: Evaluation concerning tolerances when placing beams inside of each other