Properties+and+Shape


 * SHAPES & PROPERTIES **

The shape is the sensible appearance or the configuration of some thing.The most common shapes used to build big structures are: Rectangles, arches, and triangles.In the real world, many variables affect the strength and stability of any give shape.The shape comparisons depend upon the following conditions: - Every shape is equivalent to its thickness - The joints are hinged - The live load is applied downward to the structure at a single point at its top and center
 * SHAPES **

Examples: The Parthenon in Rome and the Sydney Opera House.




 * PROPERTIES **

Strengths: Cheap, lightweight, moderately strong in compression and tension Weaknesses: Rots, swells and burns easily Bridges, houses, furniture Example: The Modern Norwegian Model in Scotland, Edinburgh
 * Wood Properties**
 * Wood Applications:**



Strengths: Flexible, lightweight, long-lasting, strong in compression and tension Weaknesses: Expensive Umbrellas, inflatable roofs over sports arenas
 * Plastic Properties**
 * Plastic Applications**

Strengths: Lightweight, doesn't rust, strong in compression and tension Weaknesses: Expensive Airplane wings, boats, cars, skyscraper "skin“
 * Aluminum Properties**
 * Aluminum Applications**



Strengths: Cheap, strong in compression Weaknesses: Heavy, weak in tension Walls of early skyscrapers and tunnels, domes //Example//: Amsterdam School Buildings
 * Brick Properties**
 * Brick Applications**



Strengths: Cheap, fireproof and weatherproof, molds to any shape, strong in compression Weaknesses: Cracks with temperature changes, weak in tension Early arch bridges and domes Example: Aarburg Bridge, Switzerland
 * Concrete Properties**
 * Concrete Applications**



Strengths: Low cost, fireproof and weatherproof, molds to any shape, strong in compression and tension Weaknesses: Can crack as it cools and hardens Bridges, dams, domes, beams and columns in skyscrapers
 * Reinforced Concrete Properties**
 * Reinforced Concrete Applications**



Strengths: Molds to any shape, strong in compression Weaknesses: Weaker than steel in tension, breaks without warning Arch bridges, cannons, historic domes
 * Iron Properties**
 * Iron Applications**



Strengths: One of strongest materials used in construction, strong in compression and tension Weaknesses: Rusts, loses strength in extremely high temperatures Cables in suspension bridges, trusses, beams and columns in skyscrapers, roller coasters Example: Sears Tower - Chicago, Illinois
 * Steel Properties**
 * Steel Applications**