Concepts

Question 1

Have the same material properties (composition) in all directions at every given point but elastic properties may not be the same in all directions.

Answer 1

Isotropic Material

Question 2

Material composition is the same but mechanical properties are different at given points

A property of a material in which the composition of material exhibits elastic properties in one direction different from that in perpendicular direction

Answer 2

Orthotropic Materials

Question 3

Materials of Uniform composition as well as mechanical properties at given points

Answer 3

Homogenous Material

Question 4

Limit Maximum stress. It can withstand before permanently deformed

Answer 4

Elastic Material

Question 5

Deformation of a Material Component due to load

Answer 5

BUCKLING

Question 6

A stress where a material begins to deform plastically

Answer 6

Yielding

Question 7

Promote the material harder and stronger due to plastic deformation

Answer 7

Strain Hardening

Question 8

Return to its initial shape and size after removing the force applied

Answer 8

Elasticity

Question 9

Measure of a tensile strength of concrete beams or slabs

Answer 9

Rupture

Question 10

Permanent deformation without rupture

Answer 10

Plasticity

Question 11

Amount of force required to displaced a building by a certain amount.

Answer 11

Stiffness

Question 12

Ability of a material to absorb energy in the plastic range without breaking

Answer 12

Toughness

Question 13

Ability of a material to absorb energy in the elastic range without breaking

Answer 13

Resillience

Question 14

4/5 times its mean dimension

Answer 14

Elongation

Question 15

Ability of a material to deform in the plastic range without breaking

Answer 15

Ductility

Question 16

A point of a structure where heavy winds and seismic activity acts

Answer 16

Shearwall

Question 17

A point of a structure where resultant vertical force acts

Answer 17

Center of mass

Question 18

A point of a structure where resultant lateral force acts

Answer 18

Center of rigidity

Question 19

Distance between center of rigidity and center of mass

Answer 19

Eccentricity

Question 20

Ability of a material to deform/ hammered pressed without breaking

Answer 20

Malleability

Question 21

It is measured by seismometer

Answer 21

Ground displacement

Question 22

It measures the strength of shaking produced at a certain location. (Effects of earthquake, Mercalli’s Scale)

Answer 22

Intensity

Question 23

Depth of focus

Answer 23

Focal depth

Question 24

A point where the earthquake begins

Answer 24

Focus

Question 25

A point where earth’s surface directly above hypocenter/focus

Answer 25

Epicenter

Question 26

The point where an earthquake or an underground explosion ordinates

Answer 26

Hypocenter

Question 27

Branch of science concerned with earthquakes

Answer 27

Seismology

Question 28

Instrument that measures and record of details of earthquakes (duration or force)

Answer 28

Seismograph

Question 29

Record produced by seismograph

Answer 29

Seismogram

Question 30

Measures the energy released at the source of the earthquake

Answer 30

Magnitude

Question 31

It measures the earthquakes magnitude

Answer 31

Richter magnitude scale

Question 32

Lateral displacement of one level relative to the story below/above

Answer 32

Story drift

Question 33

Refers to the flexibility of a structural system

Answer 33

Inverse stiffness

Question 34

If the center of mass & center of rigidity does not coincide

Answer 34

Torsional shear stress

Question 35

Less resistance to resist earthquake induced building stresses. It is also 70% as stiff as the floor above it, or less than 80% as the average stiffness of the three floors

Answer 35

Soft storey

Question 36

Helps to disperse the building weight from the roof

Answer 36

Bearing walls

Question 37

Refers to the rigidity of a structure

Answer 37

Reciprocal of deflection

Question 38

A fracture plane in the earth’s crust which relative displacement occurs

Answer 38

Fault line

Question 39

Angle of deformation referenced from the horizontal angle

Answer 39

Dip angle

Question 40

Applied seismic force acts

Answer 40

Center of mass

Question 41

Fructure caused when a material is subjected to repeated cycles

Answer 41

Fatigue

Question 42

A material is loaded over a long period it deforms continuously until fructure

Answer 42

Creep

Question 43

Force needed to stretch or compress

Answer 43

Spring constant

Question 44

Perpendicular distance between incident and emergent ray

Answer 44

Lateral displacement

Question 45

It is where the maximum amplitude oscillations occurs

Answer 45

Reasonance

Question 46

Vertical members bering horizontal force are located on another axis

Answer 46

Out of plane offset

Question 47

Aimed to account for any unforeseen factor that may attribute to the torsional response

Answer 47

Accidental eccentricity

Question 48

The number of waves that pass through a point in one second

Answer 48

Frequency

Question 49

Amount of time it takes one wave cycle to pass the given point

Answer 49

Period

Question 50

Sudden drop of shear strenth

Answer 50

Liquefaction

Question 51

At this point the material rapidly begins “necking down” as does a piece of chewing gum stretched to the breaking point. A. Ultimate strength B. Yield Point C. Impact Strength D. Fatigue

Answer 51

Ultimate strenth

Question 52

Localized upward buckling and shattering of the slabs at transverse joints or cracks. They can occur when transverse joints are field with incompressible solid materials

Answer 52

Blowups