Wednesday, October 10, 2007

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material components in the definition of architectural space.

The material components can be classified into three types: 1) Natural, 2) Natural with some transformations, 3) Industrialized.
1) Natives are those that are used almost as they appear in nature. Can be derived from soils (clay and silt), stone (granite and marble) or plants (pine and eucalyptus).
The stone, whose origin is volcanic, well supporting the compressive forces but not the drive. The woods on the other hand cater equally to both efforts. In turn, there are soft or hard according to the utility to be given.
2) Among these are the ceramics (bricks and ticholos) briquettes (monolithic and concrete), the bitumen (asphalt and tar), metals (aluminum, steel, iron).
The ticholos for example, are made with natural materials: clay, and it is through a process of several steps among which is the cooking that comes to them. Concrete is a mixture containing water, coarse and fine aggregates (gravel and sand, respectively) and Portland cement. It is an artificial stone (good response to compressive stress but not to drive).
metals, which work well in tension, allow you to build structures much less weight. It is even possible to combine concrete (compression works fine) steel (works well in tension) to make concrete was armed by allowing columns and beams to build the skeleton structure of the building, to allow wider openings (removal of bearing walls).
3) The last type is made up of those going through major changes in manufacturing processes. These may include glasses (mirrors and lenses), paints, plastics (acrylic and PVC) and agglomerated synthetic (plastic plaster) among others.
structural materials.
are those that have characteristics that allow them to receive loads and permanent, intermittent or a short time. Any structure of these materials be deformed (somewhat) by receiving the load and after removing it should return to its original state.
Among the structural materials are stone, wood, concrete, etc..
Comments:
- With an increase in temperature materials run off (thus requiring fire protection) and exposed to low temperatures become more elastic.
- should consider the time since they often deteriorate either by chemical or by action of the loads.
- usually are isotropic, ie its resistance does not depend on the direction in which force is applied. Wood is an exception because it is anisotropic.
- are metastable, their stability does not change when active physical and chemical processes (eg oxidation related to moisture and salinity). Behavior
thrust actions.
All structural material has an elastic period (A) in which the deformation is proportional to the voltage it receives. After a certain load value (depending on material) enters a period plastic (B) because if forces are removed the material returns to its original configuration.



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