Priscila Lena Farias / Anna Calvera Marcos da Costa ... - Blucher

LARA, Arthur H. / MAGRI, Paulo H. G. / CAMPOS, Patricia F. / SILVA, Nayara V. / NOLLA, Ieda Maria
the wood in the longitudinal direction of its fibers giving the form
elastic proprieties.
The bridge is composed of eight steel stretches that can expand up
to 1.4m in the longitudinal direction. The parametric-algorithmic
programming is a way of conceiving and embracing the unknown.
At its best, it goes beyond the development of commercial applications.
It becomes a way to explore and map our own mind-set. It
is the means through which the experience can be extended with
rules, principles and results of the traditionally defined as “cultural
arch-processes”.
4. Elastic force
Swedish Marten Nettelbladt 3 is one of the artists and designers
who propose a new geometry resulting from the material resistance
to torsion and flexion forces. This geometry does not fit the
category of the known basic forms, which suggests the discovery
of new concepts.
We initiated the investigation through the senoidal curves that represent
the basic fundament of bending in the application Grasshopper,
but for the bending execution, in its fullness, it was necessary
to use the 4D algorithmic modeling (3D + time) and the plug-in
Kangaroo, by Daniel Piker, through which we can simulate flexion
and gravity conferring the model properties that are next to reality.
In this context, the “bending” is presented as a very useful algorithm
in the simulation of real situations for the application of
forces, natural or inducted, and it can be used to eliminate test
phases that, in the past, could only be evaluated through physical
analyses, scientific experiments or through the designer’s experience
with the material. The craft approach was also considered in
the investigation and the new uses of fibers that behave similarly
to the elastic form due to its physical characteristics.
Figure 4. Script bend – Grasshopper + Kangaroo.
3 Mårten Nettelbladt , Swedish archiquect who does research into complex
geometries. He owns the site “Omkrets arkitektur” www.omkrets.se/ and the blog:
thegeometryofbending.blogspot.com/ (access in April 2012)
5. The investigation
Recently in Brazil, the structural use of fibers was recovered from
constructive methods that date back to antiquity. Natural materials
were generally associated to vegetal fibers and are used in the
production of objects, accessories and their uses are restricted to
coverings, ceilings, rugs and pieces of furniture. In rural popular
houses it is still common to find the structure of wooden or fiber
weft covered with clay, popularly called “pau-a-pique”.
The materials that are called fiber have a natural, mineral and
industrial origin and can be combined in compounds aggregating
physical-mechanical characteristics such as flexibility, malleability
and energy conservation. Their use is popular due to its
low cost, easy availability and, mainly, for being biodegradable.
Figure 3. Form created by Marten Nettelbladt. http://thegeometryofbending.
blogspot.com.br/
Design Frontiers: Territiories, Concepts, Technologies 329