Construction extending the loft 2m.

[Holpers]

Hey, I need to build a larger loft and I'm having trouble figuring out how to do it.

The part that's built (blue line in the picture) is about 6x4m made of 195x45 joists resting on 2 load-bearing walls of lightweight concrete.



I have about 1m more on the construction drawings. Beyond the load-bearing wall. Up to a steel post (purple ring in the picture)

Now I want to go beyond the post, about 120cm further. To the red line.

Somehow, I need to anchor to the outer walls, to the post, and to the outermost joist. The ends can be notched into the outer wall, lightweight concrete blocks. But there's a 6m span on the joists, so I need something in the middle. A 3m span should be okay with 195x45 joists with 60cc and screwed wooden flooring on top?

Maybe I should weld L or T iron onto and past the post, 120cm past the post and attach somehow to the current outermost joist? Something to lay the new joists on top of? Then I can notch the joists?

I don't want to put a joist underneath since it lowers the ceiling height below the loft.

Here's how it looks right now, construction pictures. You see the steel post and the loft as far as it currently extends.


One more picture, I need to anchor something at these points that can hold for 195x45 joists with a 3m span. A loft where the floor should be able to hold a few hundred kg.


Any smart ideas?

 

[Matti_75]

A beam on your walls that you can attach a beam between to your column. Then the joist in

 

[Holpers]

A beam on your walls that you can attach a beam between to your post. Then the floor joists in

Yes, that's how the structural drawing is designed now.

But I need to have a 120cm free-hanging loft outside the post. There is an 8m span between the exterior walls. So some form of beam (wood or steel) needs to go from the current loft to the steel post, and past it by 120cm. It needs to be anchored to the post but also to the outer 195x45 beam in the current loft.

Need to figure out:

1. Which beam is needed to handle the weight? Wood or steel? T-beam? L-beam?

2. How should I anchor it to the current loft?

3. How should I anchor it to the steel post?

 

[Matti_75]

If you have a K-drawing, it should include dimensions; otherwise, it's not a construction drawing.
You could hang the overhang from the roof beam if you don't want an extra column.

 

[Holpers]

If you have a K-drawing, it should have dimensions on it; otherwise, it's not a construction drawing. You can hang the overhang from the roof beam if you don't want an extra pillar.

I have a K-drawing with measurements and dimensions. The first picture is from that K-drawing. However, I want to deviate from the K-drawing and build an additional 120cm.

I need it open to the roof beam because I'm going to have a beam trolley and winch. The purpose of bypassing the post is to be able to winch things up and land them on the loft.