didactic unit #5 structures

STRUCTURES

© Federico Fernández Herrera

ENGLISH BILINGUAL 2º E.S.O. TECHNOLOGY

DIDACTIC UNIT # 5

STRUCTURES

INDEX:

Forces and efforts

Structural elements

Resistant structures

Steady structures

Profiles

Types of structures

Forces and efforts

Forces:GravityActionReactionCentrifugalEtc

Efforts: traction, compression, flexion, torsion, shear.

Forces and efforts (II)

CompressionTraction

SqueezeThermic dilationStretch

Forces and efforts (III)

Flexion Torsion Shear

Bending Twisting Cutting

Structural elements

Footers/footings (cimientos: zapatas)

Columns/pillars

Beams (vigas)

Archs

Tauts (tirantes)

Structural elements

Footers/footings (cimientos: zapatas)

Columns/pillars

Beams (vigas)

Archs

Tauts (tirantes)

Resistant structures

Triangles

Archs

Rigid frame

Steady structures

Centre of gravity point where weight is balanced

Centre of buoyancy point where lift is concentrated

Profiles

Tubular

Rectangular enclosed

Square

L I

U H open

T

Types of structures

Massive

Vaulted (abovedada)

Framework (entramada)

Triangular

Suspension (colgante)