topic Re: Help With Continous Curved Ramp and Form !!! in Modeling

Help With Continous Curved Ramp and Form !!!

Anonymous — Tue, 23 May 2023 14:35:53 GMT

H guys,

I want to create a building really similar to that of the cocoon office in zurich. The spiral ramps are continous and getting bigger all the way to the top. I have no idea on how to draw this on archicad. The curved ramp in the object folder does not allow me to achieve this effect.

Another question would also be on how to achieve the outher form which follows the spiral of the ramp. How do i cut the curved wall to be in line with the spiral ramp?? Your help will be greatly appreciated!! Please Help !! Thanks...

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Wed, 09 May 2012 14:07:33 GMT

Maybe this ?

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Wed, 09 May 2012 14:12:34 GMT

And this is the object (made by Mirco Sorgato from Italy - UI is in Italian):

Usage: Select the Stair tool > click the little triangle (Element - Open Library Part) > Load from File Dialog Box...select "Rampa a Spirale (m).gsm" > Open.

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Thu, 10 May 2012 07:54:40 GMT

Hey! Thanks for the reply!! Do anyone know how to create the spiral walls?? Is it through SEO?

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Sat, 12 May 2012 06:00:31 GMT

Guys please help me on this one. I couldn't get the curved walls out using SEO as it can only substract with upward extrusion and the walls doesn'f rollw the spiral form. Please help !!!

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Sat, 12 May 2012 14:07:04 GMT

I would create two ramps for cutting and place them on a hidden layer with its intersection layer group changed. One ramp would cut the top of the wall and the other ramp would be used to cut the bottom of the wall. I would then create a third ramp for the actual ramp and butt it up against the lower cut. That's a quick way.

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Tue, 15 May 2012 07:42:52 GMT

Here is an example of ramp I made using mesh and SEOs.

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Tue, 15 May 2012 08:39:33 GMT

I played a bit and made a quick step by step tutorial.

Re: Help With Continous Curved Ramp and Form !!!

Barry Kelly — Tue, 15 May 2012 08:59:38 GMT

So long as the ramp spirals inside itself all the way then this works beautifully as you have shown.
But if the ramp loops under the portion above (like a standard spring and as I assume it does in the original image) then you will need to break it down into 360° rotation segments.

I would imagine you would need to break the walls in the original image into 360° segments to trim as well or even less to make them more manageable.

It looks like LinRong is in for a lot of experimentation.

Barry.

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Tue, 15 May 2012 09:44:20 GMT

With the tool that I was developing (dragon) is very easy... you can define a mesh with free point and then you adjust graphically to the contour and in section o 3d adjust the height (graphically too).
For the walls you can put another mesh, define a cusom panel (windows), rotate and adjust in the section...

By garquitectos at 2012-05-15

By garquitectos at 2012-05-15

By garquitectos at 2012-05-15

Re: Help With Continous Curved Ramp and Form !!!

Ralph Wessel — Wed, 16 May 2012 08:59:48 GMT

LinRong wrote:
The spiral ramps are continous and getting bigger all the way to the top. I have no idea on how to draw this on archicad. The curved ramp in the object folder does not allow me to achieve this effect.

You can produce this kind of geometry with OBJECTiVE, but it's very difficult to set out. I've modelled a stair rising through an elliptical, conical space before, and it was quite a challenge. I've roughly placed a series of profiles using OBJECTiVE's Bend and Offset tools to illustrate what you could achieve.

You can use these profiles to SEO the top or bottom of walls, so that could solve your other problem too (if you can get the walls to follow the right path).

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Wed, 16 May 2012 10:02:43 GMT

As a user of objective i think that objective is your tool.
Yesterday i do a little try with "dragon", with dragon you can do almost anything but you need to setup the point manually, if your proyect is not very big it can be very easy and you has the control of the form. You can use dragon, for the ramp,the roof, and the curtain wall, define your custom panellings, delete some panels... you can hide the structure is you want for the ramp.
I'm very bussy this days (i'm giving a archicad course ) when i have more time i will upload some examples.

By garquitectos at 2012-05-16

Re: Help With Continous Curved Ramp and Form !!!

TMA_80 — Wed, 16 May 2012 10:16:50 GMT

This seem to be challenging to model in ArchiCAD. ( as Even Ralph hasdifficulties into making it with objective...)

I'm wondering if the profiler cadimage tool wouldn't be s solution for your situation as I remeber from a demo video, it has an option to define a path in 3d and apply a profile to it !

If not, I would say Sketchup is your friend ( or any external modeler )

http://forums.sketchucation.com/viewtopic.php?f=15&t=27654&start=0

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Wed, 16 May 2012 13:39:24 GMT

I have been testing out these few days and I am able to create my curved/spiral glass railing finally. I used the method provided by zeropointreference which requires to create two hidden layers of ramps for SEO. However, it is not as accurate as I hoped it would be. I am not proficient in any other softwares yet and really hope to improve my archicad model. Anyone with better suggestions to improve my model, please advise and share!! thanks!!

Re: Help With Continous Curved Ramp and Form !!!

Anonymous — Thu, 17 May 2012 00:23:09 GMT

Hi LinRong,

More discussion here:
archicad-talk.graphisoft.com/viewtopic.php?t=33532&postdays=0&postorder=asc&&start=0

Have a look onto GDL Objects: Curved Ramps on Olivier Dentan's personal site: archilib.od.pagesperso-orange.fr/

Hope this will give you more options!

Re: Help With Continous Curved Ramp and Form !!!

Erika Epstein — Thu, 17 May 2012 11:42:23 GMT

Related to the your problem of ever-widening spiral, I was looking to see what documentation there is for Wright's Guggenheim Museum. You might take a look at this site

Re: Help With Continous Curved Ramp and Form !!!

TMA_80 — Fri, 25 May 2012 09:31:14 GMT

Just to add to the Erika suggestion; This is a video from Graphisoft showing the the Guggenheim Museum modilisation: ( the first part could help )

http://www.youtube.com/watch?v=UhiUqTyNk7k

You won't be able to get vertical angle on the ramp edge though.