it works as a buffer for weights, and brings the issue of resistance and balance. Immediately comes to mind of Concrete Technology course at the University Catholic, who was known by the test mode, where groups projected a seat, and appeared the most varied forms and designs. What else can be gleaned from reading a seat? Another image that appears are the voyages of the UCV, where students must build their own furniture. 
semiotics, historical, formal, structural, many readings can be made of a seat, although the This vision approach to its construction. In my view, the chair is not an essential element in the biology people (can survive without them), but, as the table seems to be inherently cultural, for people in the West. 
chairs and chairs. It is interesting display of different prototypes. Another link, quite complete, is: http://www.silleria-oficina.com/index.php?target=news 
Cantilever chair or MR (1926) (Mark Stuart or Mies van der Rohe), Chair Paimio (1931) (Alvar Aalto), Stool
Looking Gaudí update of models that directly address the issue of the structure of a seat, you may find this stool, inspired by forms of Gaudí. According to the article, derives its strength substructures trusses, which support a thin carbon fiber shell. The form, as a party generally is based on the catenary, based both on a hanging string model, where gravity is allowed to define the most resilient and logical distribution of forces.
Stool Gaudí. Stool
Gaudi design, with observations that can be done, can however be noted an effort to use this type of structure, highly efficient, everyday objects. The 'Gaudi-chair' is being developed in collaboration with the Dutch Research Institute TNO . The designer is Geenen Bram (Netherlands), material: carbon fiber composite and polyamide, and the dimensions: 60x60x50 cms. Effort
a chair from the gas strut to emulate marquees. 
Balance, material resistance, center of gravity, are concepts that come to think of an advanced seat design. The relationship of these small buildings, and older references can be of great interest when, with a special concern, since the architecture is imagined or projected a kind of furniture. As design furniture, sometimes appears involvement of architects and their approach may be an interesting study. This will include delivering projects equipped architects such as Alvar Aalto, and Mies Van Der Rohe. With regard to the demonstration of cargo through the expression, for its part, the architecture has many examples, a feature that is part of modernity. sculptural expression of effort can be found in Calatrava, for example. Philip Johnson, Rem Koolhaas, Renzo Piano, several prominent architects, working with the effort, applying design. In everyday life, on the other hand, is a theme that sought to play in a previous article live alongside very clever elements that are part of the design of furniture, and sometimes go unnoticed. To be in front of a computer (as several people who might be reading this article, for example), the most common is that they use a desk chair, which has a gas spring mechanism, or air cushion. That is a form of expression of effort, or to lessen the effort. 
What is a Gas Spring?
http://en.wikipedia.org/wiki/Gas_spring On a previous occasion, touched the theme of cushioning, drawing attention that came to refer a similar device, to slow and absorb loads, based on a moving piston in a cylinder. A gas spring and is an entire system, with many applications, existing firms engaged in production.
http://www.ta.com.ar/productos.html
http://www.mexicoarmado.com/showthread.php?12145-Que-Es-El-Sistema-Gas-ram-Y- As-Run
http://gaspring.com.ar/Quees.html 
Spring, according to one of the pages above, is a device, usually spiral, which stores energy when compressed, to release to be released . In the case of gas spring, the "accumulated energy" from the burden of pressurized gas. That is essentially a cylinder seal, which consists of rod or pipe casing, piston and seal. Containing pressurized gas and oil, and hydraulic component. The effort, as determined by the gas charge, pushes the stem and is then used to open, close, hold, increase or balance, with smooth, different types of gates and weights. With a precise design, so it is possible to compensate for doors of different weights, making it safe and expeditious action to open and close, and other multiple uses, which also has application in office seating.
Advantages air cushion A gas spring and is presented as a versatile solution for the purpose of holding, lifting, balancing, providing smooth movement, and can accommodate multiple applications. Assembly is simple, with great range of possibilities of forces within the same size. Compact design, high level of operational convenience, safety in use, are some of the reasons for the growth in applications of this system.
damping, so finally is a real issue, which also becomes important on a larger scale, to solve the stress absorption. Chairs
textiles
advantage of its flexibility, a fabric or textile surface can be used taut with a metal structure, as the examples above. The proposed stiffness in these elements, in contrast to the damping effect is the surface.
has characteristics of a tensile structure and supportive, thinking in reference to larger scale, which expresses the tensile stress. The flexible tension element, in turn, allows the states have total or ranges of motion. In the case above, the chairs, on the central image, two states identified: the chair in flat and extended.
studies efforts made by Gaudí, exploring ways catenary, have several advantages, one of which is to remove spurs, to transmit the loads to the ground, simplifying the design. With respect to the seat down, there are also rigid models, and an interesting page, with recommendations for its construction, which can be drawn from notions of structure, is:
http://redcamelot.com/lafragua/silla
-00.htm structural ideas in architecture used in scale
close to major, or vice versa, there may be feedback, sharing ideas. The structure of a chair put before opting for an ingenious way of support, experience that can be exploited as a building system. It also suggests the use of the material and how to extract maximum strength. With regard to the latter, these days I try to develop a new prototype, generated from a flat, portable table that complements the proposal. The idea is from a large cardboard box twice and using pre-folded pleats, try to create two states: a book or folder similar to that of the table and the chair in its expanded state. So combine economy and sustainability, through the songs, crossing the lines to ensure restraint and diagonal planes project to ensure total firmness, as a bracing, or deform. 
With respect to extract sustainable forms of folds, may be of interest to the following link:
http://www.decorablog.com/sillas-de-origami/
Cardine of Sooim Kim appears as a new chair, which the paper proposes innovation in space-saving, may unfold anywhere.
So the chair is presented as a research support bounded solutions and building systems that can become profitable on a larger scale. Take media, mode constructs, appears to be an interesting vein of development, this post has tried to outline this issue.
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