PAST BOARD EXAM Flashcards
(32 cards)
Is the force which determines
whether the body will be in
Equilibrium or will have a varying state of motion
Resultant
- The principle used in equations related to the deformation of axially loaded material.
- That the stress is proportional to the strain within the elastic
region.
Hooke’s Law
The ratio of the lateral to
the longitudinal strain is
constant.
Poisson’s Ratio
It is the constant of proportionality that defines the
linear relationship between stress and strain.
Young’s Modulus
- A structural member that has the ratio of its unsupported height to its least lateral dimension of not less than 3 and is used primarily to
support axial load.
Column
Retarding force acting opposite
of body in motion.
Kinetic Friction
It is the term for the value
beyond which the stress is no
longer proportional to the strain.
Proportional Limit
- Materials which have the same composition/compression at any point.
- Material has the same
elastic properties in all
directions.
Homogeneous
- Property of a material enables it to under large permanent strains before failure.
- Ability of a material to
deform/ defuse in the plastic
range without breaking.
Ductility
It is described herein stressing
high strength steel wires before
concrete hardens.
Pre-Tensioning
It is described herein stressing
high strength steel after the
concrete has been cast and has
attained sufficient strength.
Post-Tensioning
Is described herein loss of
stress that takes place with the
passage of time as concrete is
held at a constant strain.
Relaxation
Ability of a material to absorb
energy in the Elastic Range.
Resilience / Modulus of Resilience
Ability of a material to absorb
energy in the plastic range or
fracture point.
Toughness / Modulus of Toughness
Property of a material which makes it return to its original dimension when the load is removed.
Elasticity
It is the point through which
the resultant of the resistance to the applied lateral force acts.
Center of Rigidity
It is the distance between the
Center of Rigidity and Center of
Mass.
Eccentricity
One in which the lateral stiffness is less than 70 percent of the stiffness of the story above is called
Soft Story
A Lateral Displacement of one
level relative to the level above or below is called
Story Drift
A sudden drop in the shear
strength of a soil.
Liquefaction
Which refers to the Rigidity of
a Structure?
- Deflection
- Reciprocal of Deflection
- Product of Stiffness and Deflection
- Reciprocal of Stiffness
- Reciprocal of Deflection
It is the point through which
the applied seismic force acts.
Center of Mass
Refers to flexibility of structure.
Reciprocal of Stiffness
The material has the same
composition at every point but the elastic may not be the same in all directions.
- The composite material exhibits elastic properties in one direction different from that in the perpendicular direction.
Orthotropic
