Bibliografia: V.Ryan (2002) Structural forces, taken from: http://www.technologystudent.com/forcmom/dkforce1.htm
Guana Victor (2010) Esfuerzos estructurales, tomado de: http://es.calameo.com/books/003425082243ce532149e
K-12 Outreach Office, Worcester Polytechnic Institute(2013) Fairly Fundamental Facts about Forces and Structure, taken from: https://www.teachengineering.org/lessons/view/wpi_lesson_1
A structure must have balance,
stability and resistance therefore
must support certain types of forces
at the time of being built
WHAT IS A
FORCE?
A force is any action that causes a
change in the shape or motion of an
objetct
THERE ARE
TRACTION
A force that streches or pulls apart a member, resulting in
the member elogating
Tensors
COMPRESSION
A force that squeezes or presses a member
together, resulting in the member
shortening
SHEAR
A force that acts perpendicular to the axis of the member,
causing the internal particles of the member to slide against
each other
At the ends of the beams of a building there are two equal or
opposite forces applied to the right and left of the bearing
points that tend to cut the beam On the one hand, the force of
the weight that supports the beam, and, on the other hand, the
force of reaction exerted by the pillar or the wall to support
that weight
FLEXION
An element is subjected to bending when
it acts on it loads tending to bend it
In a bending effort, tensile and compressive stresses
are given at the same time, because when the body
sinks, one part rises outwards (traction), while
another one collapses inwards (compression).
TORSION
A body undergoes torsional stresses when there are
forces that tend to twist
Cracking in
the beam
Torsion cracking in the nerve of
the edge of a slab