Handling 16m long glulam beams (roof beams)

[HEA260]

Hello,

For a project where two extensions will be made next to each other on the same house, we are considering using 16m long glue-laminated beams (90x405mm) as roof beams. These rest on 3 supports.

The two extensions share a wall.

Questions that arise include the following:
- How do we practically handle such long beams - how do you lift such a large beam up 3m? (weighs 292 kg each)
- Are there any disadvantages to using such long roof beams?

Any other thoughts on what might be affected by this choice?

 

[Vardagsrum]

Crane truck, so the matter is settled.

 

[Leif i Skåne]

Hello,

For a project, where two extensions are to be constructed next to each other on the same house, we are considering using 16m long glulam beams (90x405mm) as roof beams. These rest on 3 supports.

The two extensions share a wall.

Questions that arise include the following:
- How do we practically handle such long beams - how do you lift such a large beam up 3m? (weighs 292 kg each)
- Are there any disadvantages to using such long roof beams?

Any other thoughts on what is affected by this choice?

Alplift can be rented, preferably 2 pcs.
Sometimes we have rented 2 electric forklifts.
https://www.cramo.se/sv/category/by...materiallyft--500kg--5m-manuell-alpliftlmx500

With one of these, I lifted up all the glulam beams in my conservatory. The largest was 115x420 mm and we had mounted all the load-bearing posts when it was lying down on the concrete slab.

 

[HEA260]

Crane truck, then the matter is settled.

Thanks, gathering all the tips and weighing the pros and cons for this particular project.

 

[HEA260]

Alplift is available for rent, preferably 2 pcs.
Sometimes we have rented 2 electric trucks.

Thanks, I would probably have dared if I rented 3 alplifts. It becomes a huge deflection when the beam is 16m long. Would you have had one at the beginning and one at the end?

When it comes to electric trucks, it might be a bit difficult to get through on this project.

 

[Leif i Skåne]

When it comes to electric trucks, it might be a bit difficult to proceed with this project.

Yes, it requires a concrete floor underneath.

 

[Daniel Barnaniel]

Consider transportation costs. After 12 meters, it becomes outrageously more expensive to my knowledge.

 

[HEA260]

Consider transportation costs. After 12 meters, it becomes outrageously more expensive as far as I know.

Sounds about right, I got a quote of 21,000 SEK for just transport 65km with a trailer (unloading not included).

 

[HEA260]

Yes, it requires a concrete floor underneath.

It is, in fact. 120mm concrete with centered reinforcement: 10mm cc150mm. However, it's difficult to get electric forklifts in from the start. I will think a little more about this.

Do you know the approximate cost for renting an alplift and an electric forklift?

 

[z_bumbi]

Is it not possible to extend over the wall?

Otherwise, a crane truck or telescopic handler is probably the most reasonable.

 

[atomlab]

I would say that a crane truck/mobile crane is the only suitable option.

Handling something that is 16m long with a forklift will be incredibly difficult if not impossible to maneuver around. Should they also need to be visible? Be careful with edge protection and so on in that case. Otherwise, there will be marks due to the weight.

 

[topmount]

Invite eight friends over

 

[Leif i Skåne]

16 m becomes expensive transportation!
Ask the manufacturer to divide the beam into suitable lengths and do as always, splice over or between a supporting post.

 

[fribygg]

Invite eight friends

3 should be perfectly sufficient, you can take one end at a time and the property owner should also pitch in?

 

[HEA260]

Isn't it possible to splice over the wall?

Otherwise, a crane truck or telehandler is probably the most reasonable.

Maybe it's possible to make a splice that is moment-stiff over the central support, but I don't know how to do it. You lose the continuity of the beam if the splice is not moment-stiff (transfers moment), which means you need to go up at least one extra size in beam height for the same beam.