1 / 24

STRUCTURES

STRUCTURES. by Jaime R. Rico. Are these structures?. So, what is a structure?. Something that protects someone or something Something that supports s.o. or s.t. Something that contains s.o. or s.t Something that…. Some concepts.

keelie-nichols
Télécharger la présentation

STRUCTURES

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. STRUCTURES by Jaime R. Rico

  2. Are these structures?

  3. So, what is a structure? • Something that protects someone or something • Something that supports s.o. or s.t. • Something that contains s.o. or s.t • Something that…

  4. Some concepts • A force is a push or pull that tends to cause an object to change its movement or shape • A load is an external force which acts on a structure. (e.g. weight) • An stress is an internal force which acts on a structure.

  5. DEFINITION OF STRUCTURE • A structure is an arrangement of elements that resists loads. • A structure is an element or a set (group) of elements that withstand (support) loads without breaking or distorting (disforming) excessively (too much).

  6. What does it mean to withstand a load? • Structures withstand loads if they can support all the forces acting on them without collapsing or breaking.

  7. TYPES OF LOADS • Remember that a load is an external force which acts on a structure. • Loads are classified in: • Static (or Death) load: is a permanent force, acting on a structure. • This includes the weight of the structure itself and the non-moving parts it supports. • Dynamic (or Live) load: is a changing, or non-permanent force acting on a structure. • This includes the force of the wind and the weight of things that are in, or on a structure.

  8. TYPES OF STRUCTURES • We can classifiedthemattendingtotheirorigin. • Natural structures: exist in theNature. • Manufacturedstructures: are builtbypeople.

  9. NATURAL STRUCTURES • Are not made by people. • Occur naturally in the environment. • Examples: • Skeleton • Nest • Egg shell

  10. MANUFACTURED STRUCTURES • Are built by people. • Are classified in: • Mass structures • Frame structures • Shell structures

  11. MASS STRUCTURES • Are made piling up material • Examples: • Pyramid • Dam • Wall • Castle

  12. PYRAMIDS

  13. DAMS

  14. WALLS

  15. CASTLES

  16. FRAME STRUCTURES • Are made from bars joined together to form a 'framework‘ • Most of the inside part of the structure is empty space • Are the most common construction choice. Why?

  17. SHELL STRUCTURES • Use a thin, carefully shaped, outer layer of material, to provide their strength and rigidity • The shape of a shell structure spreads forces throughout the whole structure • Every part of the structure supports only a small part of the load, giving it its strength.

  18. BODYWORK WII CONSOLE SHELL

  19. SHELL-HOUSE

  20. MIX STRUCTURES

More Related