Intersecting beams

Replies to This Discussion

Permalink Reply by Julian Buhagiar on June 18, 2015 at 10:41am

do you have the original gh file?

Permalink Reply by Julian Buhagiar on June 18, 2015 at 12:07pm

something like this is a starting point. see if you can work it out, I've tried to add notes but there will still be occasional intersections without further work.

Attachments:

• arches.gh, 20 KB

Permalink Reply by Joseph Oster on June 19, 2015 at 10:33am

I started out modeling two arches from each point, like your screen shot, with various ideas for resolving collisions...  but as can be seen using the three sets of sample curves included, there are many factors at play that create collisions - and ways of dealing with them, such as the heights of alternate ground points, for example.

Attachments:

• arches_2015Jun19b.gh, 20 KB

Permalink Reply by Joseph Oster on June 19, 2015 at 11:32am

A little more pleasing architecturally to use curves instead of circular arcs?

Might be interesting to look at connections at the crossing point on each side, for better tent-like support.

Attachments:

• arches_2015Jun19c.gh, 35 KB

Permalink Reply by Joseph Oster on June 19, 2015 at 12:20pm

And, of course, better distribution of the points - instead of dividing both guide curves equally, the line between them is divided and 'Perp Frames' are used to find the base points for the arches along the curves - closer together when concave, further apart when convex.

Attachments:

• arches_2015Jun19d.gh, 35 KB

Permalink Reply by Maria Cervinka on July 14, 2015 at 11:55am

Hey there!

I am very sorry for the late response. Thanks a lot for your input guys!

I still haven't figured out completely how it works, but I can attach the original file and maybe you can help me! 

I still don't get how I can make it that the extrusions won't intersect. At the highest point they should be situated next to eachother (just touching eachother, not intersecting). And at the (middle/main) intersection point of the curves they should be positioned above eachother. In the one direction they should always be on top and the mirrored beams that go in the other direction should always lie underneath.

I hope I could explain it good enough for you to understand,

and that you can help me out!!

Thanks a lot in advance,

Best wishes

Maria

Attachments:

• 2015.07.14.gh, 23 KB

Permalink Reply by Joseph Oster on July 14, 2015 at 12:11pm

Would have been good to start with your GH file but sorry, not interested in a "conversation" where nearly a month goes by without a response.  Too much effort to get back into whatever the issues were on this particular project.  Good luck.

Permalink Reply by Maria Cervinka on July 15, 2015 at 6:58am

Yeah I'm sorry. I understand that, of course. It was just that I was not at home for a long time and I had private issues that had priority, sorry.

Thanks anyway!

Permalink Reply by Julian Buhagiar on July 18, 2015 at 11:54am

This is a modification of your file with the beginning bits reorganised a little using grafting to keep track of things.

it basically drafts out where intersections would appear using surfaces and then offsets the beam centres from the intersection surfaces.

The membranes are then constructed using the beam edges with a catenary loft.

Attachments:

• 2015.07.18.gh, 52 KB