Presentación para explicar en clase.

1. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A UNIT 3: STRUCTURES

2. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A Definition of structure A structure is a group of elements which main function is to support weight and other forces.

4. Pillars: they are the vertical components of a structure.

5. Besides, an structure includes some bars forming triangular constructions in order to provide resistance to the structure.

6. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A

7. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A

8. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A Traction : This effort is composed by two opposite parallel forces which try to separate the particles of the material. Compression: This effort is composed by two opposite parallel forces which try to join the particles of the material. Definition of EFFORT : is the group of internal forces supported by the object due to the loads acting on it . TYPES OF EFFORTS

9. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A Bending : This effort is composed by a combination of traction and compression efforts. In bending effort,the forces try to bend the object TYPES OF EFFORTS II

10. I.E.S. JOAQUIN TURINA TECHONOLOGY 1º ESO A Torsion effort: when the forces try to twist the object. Shear effort: when the forces try to cut the object like a scissors do: a force going up and a force going down. TYPES OF EFFORTS III