Open Source House with Open Source CAD?

[paullee]

edit: (forgot text...)
at the moment we have 4 different layouts. Which one to use?
reliable_layout.JPG
thumbs_up.JPG

I just modify the model following PDF ridge setting-out - hope this is correct ... ( not by superimposing the image )

[thschrader]

edit: (forgot text...)
at the moment we have 4 different layouts. Which one to use?
reliable_layout.JPG
thumbs_up.JPG

I just modify the model following PDF ridge setting-out - hope this is correct ... ( not by superimposing the image )

Ok, thanks. I use the new wall as reference.
This has an effect of the column-height in axis 1 (+180 mm, when pink/green axis in sketcher are set parallel).

new_wall_reference.JPG (60.13 KiB) Viewed 2455 times

About statics/stability:
The outer prefabricated frames an the inner wall must act as a "shear-wall" to get stability of the wooden frame/roof.
The inner wall-panels a boltet to the middle-beam and the rebars in the floor.
I will run a statics calculation of the frame, lets see how it works with FC-FEM and my commercial software.

shear_wall.JPG (36.17 KiB) Viewed 2455 times

[paullee]

This has an effect of the column-height in axis 1 (+180 mm, when pink/green axis in sketcher are set parallel).
new_wall_reference.JPG

About statics/stability:
The outer prefabricated frames an the inner wall must act as a "shear-wall" to get stability of the wooden frame/roof.
The inner wall-panels a boltet to the middle-beam and the rebars in the floor.
I will run a statics calculation of the frame, lets see how it works with FC-FEM and my commercial software.
shear_wall.JPG

Not sure if the figures I picked from the PDF are consistent indeed.

Hope to see something about FEM, I know nothing about this

And some update, adding door opening, windows, omission of concrete panels, re-dimension of stairs etc.

House_01_OpenSource.FCStd

(681.1 KiB) Downloaded 98 times

Screenshot from 2020-08-01 19-56-48.png (488.65 KiB) Viewed 2447 times

[thschrader]

...
And some update, adding door opening, windows, omission of concrete panels, re-dimension of stairs etc.
...

adjusted wood-structure to new reference.

wood_structure_adjusted_01082020.ifc

(87.86 KiB) Downloaded 85 times

[thschrader]

Some fun with FEM, calculating the wooden frame/roof.
Loading:
snow 75 kg/m^2 on roof, payload 200 kg/m^2 upper floor, no selfweights.
The beam under the upper floor with cross section 50x200 mm seems too weak.
(double the calculated stress of 5 MPa, in reality there are hinges at the ends)
Some walls are still missing...
Have a nice weekend.

FEM_wood_frame.JPG (337.56 KiB) Viewed 2411 times

[paullee]

Loading:
snow 75 kg/m^2 on roof, payload 200 kg/m^2 upper floor, no selfweights.
The beam under the upper floor with cross section 50x200 mm seems too weak.
(double the calculated stress of 5 MPa, in reality there are hinges at the ends)
Some walls are still missing...

Looks interesting, need more explanation on the diagram please

[paullee]

Model updated, incorporated Thschrader's latest model, added window clones, adjusted dispositions ...

House_01_OpenSource.FCStd

(783.28 KiB) Downloaded 125 times

Screenshot from 2020-08-02 00-01-31.png (499.69 KiB) Viewed 2405 times

Screenshot from 2020-08-02 00-01-36.png (459.66 KiB) Viewed 2405 times

Screenshot from 2020-08-02 00-05-41.png (312.49 KiB) Viewed 2405 times

[thomas-neemann]

does it make sense to try to plan the house on this site, a point cloud?
point clouds are used in my clientele.

example point cloud file
https://lvermgeo.rlp.de/fileadmin/lverm ... dell_B.zip


howto convert to stl
http://fabacademy.org/archives/2014/tut ... ToSTL.html

[johnwang]

Some fun with FEM

Do you have ways to calculate wind load?

[thschrader]

Some fun with FEM

Do you have ways to calculate wind load?

At work we use Eurocode 1 "Wind load".
more sophisticated: cfdof workbench.