Grasshopper

generative modeling for Rhino

# Digital Form-Finding of Timber Post-formed Gridshell

Timber Gridshell in the courtyard of Naples University Federico II faculty of Architecture.
The structure is the final outcome of the Master's degree thesis:"Digital Form-Finding of Timber Post-formed Gridshell"

Authors: Andrea Fiore,Daniele Lancia
Advisors : Prof.Sergio Pone with PhD. Sofia Colabella, PhD. Bianca Parenti, Arch. Bernardino D'amico, Prof. Francesco Portioli

The main topic of the thesis is the development of a digital form-finding gridshell design tool, by a real time simulation of the material system's behavior) as well as the kinematic construction process, which consists in the bending of an initial flat grid to reach the final resistent shape.

www.gridshell.it
Tool used:
Grasshopper,Kangaroo,Karamba

Structure fetures:
planar grid area 169m^2
covered area 96m^2

Views: 2268

Location: Naples

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Comment by Rasmus Holst on November 27, 2012 at 6:32am

Oh and one more question :)

I quess you use pull to curve force on the perimeter points? Does that mean that you don't have any control points?

Comment by Rasmus Holst on November 27, 2012 at 6:09am

Hi Daniele.

Okay so you bend the laths in pieces of meters, but from the method you use through Kangaroo, do you can not be sure that the laths going all the way through are geodesic to the surface it creates right? I mean you would not be able to lay a straight strip across the whole length of lath right? Correct me if I am wrong.

I think I am just wondering if you have any other resistances in the Kangaroo definition than bending resistance along each strip?

Cheers Rasmus

Comment by Daniele Foca Lancia on November 14, 2012 at 7:53am

Thanks for the questions,

the pieces aren't small straight, but they are long 2m and joined in head with screws, every 50cm there is a joint with the crossed layer,so the wood is bend, and the conections are simple screws like Frey Otto's gridshell in mannaheim. For more pictures you can see also www.gridshell.it

Daniele Lancia

Comment by Rasmus Holst on November 14, 2012 at 5:21am

Hi guys.

Nice work. I am just wondering what kind of connections you are using/calculating with? It looks like the stresses are calculated from strips in the full lenght,  but you build the shell out of small straight pieces? Does this mean that you are not bending any materials, but do the bending in the connections instead?

Cheers Rasmus

Comment by M NICK on November 6, 2012 at 6:21pm
Hi,
How did you send back the Karamba results to Kangaroo?

Thanks and great job btw
Comment by Andrea Fiore on August 11, 2012 at 2:40pm

;)

Comment by djordje on August 11, 2012 at 1:19pm

Thank you for the reply Andrea.

Comment by Andrea Fiore on August 11, 2012 at 1:07pm

@ Djorde
We tried to use Galapagos, to optimize (in a range) the form we "find" in manual reiterations. But it doesn't work well with kangaroo.

Following Mutsuro Sasaki lesson we decided to find the global form manually, but always respecting real world post-formed gridshell laws, our construction possibilites and a clear idea of space.

Done some optimizations we analyzed structural behaviour and on that basis we do manual  reiterations to improve the form and minimize deformation strain and stress.

Comment by Ángel Linares on August 10, 2012 at 4:43pm

Nice and amazing work here guys :)

Comment by djordje on August 10, 2012 at 4:26pm

@Andrea:

But I am a bit confused - if you did no use Galapagos to achieve all this goals (smallest value of deformation, for the smallest peak, smallest strain and stress) then how did you do it?
Simply by manually trying out different solutions?

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