Can anyone help me with the calculation for a suitable steel beam construction for my garage?
I was planning to build a gantry with an IPE or HEA beam in the ceiling.
Span, 7.5m
Max load at the center, 1 ton
The beam will then rest on two side beams to allow for longitudinal movement as well.
Span: 8m or 4m, i.e., with 3 pillars.
Max load, the transverse beam's weight + 1 ton, + maybe around 100 kg in block, wheels, etc.
Since ceiling height is important under the transverse beam, I can consider having double beams to reduce the height.
I was planning to build a gantry with an IPE or HEA beam in the ceiling.
Span, 7.5m
Max load at the center, 1 ton
The beam will then rest on two side beams to allow for longitudinal movement as well.
Span: 8m or 4m, i.e., with 3 pillars.
Max load, the transverse beam's weight + 1 ton, + maybe around 100 kg in block, wheels, etc.
Since ceiling height is important under the transverse beam, I can consider having double beams to reduce the height.
This is not something a layperson should attempt to solve on their own. You are dealing with significant forces integrated into the building!
If you want the lowest possible construction height, you should opt for the HEA beam alternative, but it will be large and heavy! Example: 1 ton suspended at 2 points with 8-meter spacing = HEA200. The beam weighs 42.3 kg/meter, so it adds considerable dead weight.
There are ready-made rail systems used in industries, look at the suspended systems (to avoid "drawer effects"). This will generally also reduce the dead weight + make handling the loads easier.
If you're going to implement something rail-guided on the ceiling, you should have travel motors in the X and Y directions due to the weight of the movable part.
Regardless of the solution, you should seek help from a professional. I don't know where in the country you live, but I recommend contacting, for example, Dematek for assistance with this. www.dematek.se
Best regards, Stefan Ottosson
If you want the lowest possible construction height, you should opt for the HEA beam alternative, but it will be large and heavy! Example: 1 ton suspended at 2 points with 8-meter spacing = HEA200. The beam weighs 42.3 kg/meter, so it adds considerable dead weight.
There are ready-made rail systems used in industries, look at the suspended systems (to avoid "drawer effects"). This will generally also reduce the dead weight + make handling the loads easier.
If you're going to implement something rail-guided on the ceiling, you should have travel motors in the X and Y directions due to the weight of the movable part.
Regardless of the solution, you should seek help from a professional. I don't know where in the country you live, but I recommend contacting, for example, Dematek for assistance with this. www.dematek.se
Best regards, Stefan Ottosson
A traversing beam is typically a welded box beam with web stiffeners in the beam to prevent buckling. A beam as long as 7.5 m becomes quite heavy if it is not a box beam.
It is not advisable to experiment with traversing beams on your own. If you absolutely want to do it, keep in mind that the supports on the sides for the beam must also be dimensioned considering the load over the entire length of the traversing track.
It is not advisable to experiment with traversing beams on your own. If you absolutely want to do it, keep in mind that the supports on the sides for the beam must also be dimensioned considering the load over the entire length of the traversing track.
IPE beam is best when it comes to weight relative to load-bearing capacity.Brannmark said:
It is just on the edge that you can manage with an IPE-140 (Strength 275 N/mm2).
But then you would get a deflection of a whole 77mm.
I would probably choose an IPE 160 which is available in strength 355 N/mm2, it theoretically handles 2.1 tons in your case and "only" bends down 48mm under a one-ton load.
Agree with rtyui987 and dunde, this is not something you should tinker with yourself. 1 ton load and a deflection of 48 mm... will move a lot, so anything can happen. Lots of unpleasant effects that you have to consider. Even if it is in a strength class that can handle 355 N/mm2, you have to think about stress concentrations, low-cycle fatigue, natural vibrations, buckling. It just seems generally dangerous.
Best regards,
Per
Ph.D. in Mechanics
Best regards,
Per
Ph.D. in Mechanics
http://www.blocket.se/vi/18978338.htm?ca=6_s
http://www.blocket.se/vi/18807620.htm?ca=6_
A small selection of ready-made traverses, just cut down to the desired length, probably cheaper than building it yourself, and easier...
http://www.blocket.se/vi/18807620.htm?ca=6_
A small selection of ready-made traverses, just cut down to the desired length, probably cheaper than building it yourself, and easier...