Column placement suggestions

[TarikHKJ]

Hi,

Can you suggest suitable column placement for these plans, I find it difficult since the floors are shifted from each other, especially the 2nd basement floor on the far right.

File is attached

Thank you

 

[jayrod12]

It will depend on the construction type as well. You probably will need to have some back and forth with the architect as well to determine an economical placement.

 

[TarikHKJ]

RC Building

 

[BAretired]

What are the floor names from left to right? Basement, First Floor, Second Floor?

You referred to the 2nd basement floor on the far right. That doesn't seem correct.







BA

 

[TarikHKJ]

From left to right, Ground floor, 1st basement, 2nd basement,
The 1st basement has a terrace on the 2nd basement roof, and the ground floor has a terrace on the 1st basement roof

 

[TarikHKJ]

The thing that most concerns me is the 3 m overhang in the 1st basement slab.

 

[BAretired]

That would concern me too, but I don't see a 3m overhang in the B1 slab. The north wall of B2 serves as a continuous bearing wall for the B1 terrace. The Ground Floor terrace, if I read it correctly, has a bearing wall under its north end too, but the bearing wall on B1 lies above an open room on B2 which may be a problem.

It might be a good idea to develop the plans a little more. Some gridlines would help in discussion. A few dimensions wouldn't hurt either.





BA

 

[TarikHKJ]

"but the bearing wall on B1 lies above an open room on B2 which may be a problem." yes thats what I was asking for

I will post the DWG file as soon as possible.

Thanks

 

[TarikHKJ]

dwg file is attached

 

[TarikHKJ]

RC system is ribbed slabs

 

[BAretired]

Can you put that in PDF format?

BA

 

[TarikHKJ]

pdf file is attached

 

[BAretired]

It's always difficult when architects plan floor spaces without considering structural requirements. The attached framing plans are a suggestion which may or may not be acceptable to the architect.

The turquoise shaded areas on the Roof and Ground Floor Framing Plans are outside the framed areas.

The wiggly green lines represent bearing walls, some of which rest on the floor framing below.

The wiggly blue line represents a beam at Ground Floor and the two large X's are suggested column locations between B2 and Ground.

If the roof can be light weight steel joist construction, you should be able to clear span between bearing walls. If you want to use concrete, you may need to add one or two more beams.



BA

 

[hoshang]

Hi
Please find the attached link:

https://www.screencast.com/t/qiorhkjhw4Yh

The green color is for columns continuing only one floor.
The red color is for columns continuing three floors.
There will be main beams between the columns and secondary beams (supported by main beams) for bearing walls lying above open rooms

 

[TarikHKJ]

Thank you BA and hoshang for your replies.

BA I can see that have put bearing walls on the perimeter of the floors, but in the ground floor to roof slab I cant find the optimal interior column placement.

Hoshang I think that the green columns are sufficient for the b2 floor, but the red columns are far from each other and will not make an economical beam sections.

 

[hoshang]

Hoshang I think that the green columns are sufficient for the b2 floor, but the red columns are far from each other and will not make an economical beam sections.

https://files.engineering.com/getfile.aspx?folder=5085441b-6e62-4de6-97ea-f

Please find the attached link.

https://www.screencast.com/t/GCHLKfELPYt

The green color is for columns continuing only one floor.
The red color is for columns continuing three floors.
There will be main beams between the columns and secondary beams (supported by main beams) for bearing walls lying above open rooms

 

[TarikHKJ]

Thank you hoshang, but the 4 columns annotated in the attachment are showing up in the middle of rooms in upper floors.

 

[hoshang]

Sorry TarikHKJ
Please find the attached link.

https://www.screencast.com/t/7ozq5ilR

The green color is for columns continuing only one floor.
The red color is for columns continuing two floors.
The uppermost floor will be supported by load bearing walls.
There will be main beams between the columns and secondary beams (supported by main beams) for bearing walls lying above open rooms

 

[BAretired]

BA I can see that have put bearing walls on the perimeter of the floors, but in the ground floor to roof slab I cant find the optimal interior column placement.

I have added a couple of beams (wiggly blue lines) and four columns (red squares) on the Roof Framing Plan.

Unless you can convince the architect to modify his Ground Floor Plan, I think you will have to support some of the bearing walls on Ground Floor framing. There seems to be no other solution.


BA