SEC
問題一覧
1
The material composition is the same but it's mechanical properties are different in every direction
Orthotropic
2
Refers to the tendency of solid materials to return to their original shape after being forces are applied on them. When the forces are removed, the object will return to it's initial shape and size
Elasticity
3
Has a stress-strain relationship that is independent of the orientation of the coordinate system at a point. The one having the same elastic properties in all directions at any one point of the body
Isotropic material
4
Material elastic properties are the same at all points in the body
Homogeneous material
5
Failure by lateral or torsional instability of a structural member, occuring with stresses below the yield of ultimate values. Pulling away of a panel edge from its support structure.
Buckling
6
Also known as work hardening or cold working is the strengthening of a metal by plastic deformation.This strengthening occurs because of dislocation movements and dislocation generation within the crystal structure of the material.
Strain hardening
7
Refers to the stress at which a material begins to deform plastically
Yielding
8
The ability of the material to absorb energy in the plastic range
Toughness
9
The ability of material to absorb energy in elastic range
Resilience
10
The term which refers to the ability of a material to deform in the plastic range without breaking
Ductility
11
It is the point through which the resultant of the resistance to the applied lateral force acts
Center of rigidity
12
The point on a structure where the resultant vertical force acts
Center of mass
13
The distance between the center of mass and center of rigidity
Eccentricity
14
It is either tensile or compressive stress produced by force acting perpendicular to the area
Normal stress
15
It is the contact pressure between separate bodies
Bearing stress
16
It is produced whenever the applied load causes sliding to the sections. It is either a single shear or double shear
Shearing stress
17
Vertical spacing of ties shall not exceed
16(bar diameter), 48(tie diameter and least dimension of the column
18
The value of Fu of E60?
60ksi
19
The value of Fu of E70?
485 MPa
20
The value of Fu of E80?
80ksi
21
The force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
Friction
22
Waht will happen if the center of mass and center of rigidity of a structure does not coincide?
torsional shear stress
23
A building which has a floor which is less than 70% as stiff as the floor immediately above it, or less than 80% as stiff as the average stiffness of the three floors above it
soft storey
24
Refers to the lateral displacement of one level relative to the other level above or below
storey drift
25
To produce zero stress at the bottom, what is the value of e? (prestress problem)
e=h/6
26
Maximum eccentricity about the strong axis is
10%h
問題一覧
1
The material composition is the same but it's mechanical properties are different in every direction
Orthotropic
2
Refers to the tendency of solid materials to return to their original shape after being forces are applied on them. When the forces are removed, the object will return to it's initial shape and size
Elasticity
3
Has a stress-strain relationship that is independent of the orientation of the coordinate system at a point. The one having the same elastic properties in all directions at any one point of the body
Isotropic material
4
Material elastic properties are the same at all points in the body
Homogeneous material
5
Failure by lateral or torsional instability of a structural member, occuring with stresses below the yield of ultimate values. Pulling away of a panel edge from its support structure.
Buckling
6
Also known as work hardening or cold working is the strengthening of a metal by plastic deformation.This strengthening occurs because of dislocation movements and dislocation generation within the crystal structure of the material.
Strain hardening
7
Refers to the stress at which a material begins to deform plastically
Yielding
8
The ability of the material to absorb energy in the plastic range
Toughness
9
The ability of material to absorb energy in elastic range
Resilience
10
The term which refers to the ability of a material to deform in the plastic range without breaking
Ductility
11
It is the point through which the resultant of the resistance to the applied lateral force acts
Center of rigidity
12
The point on a structure where the resultant vertical force acts
Center of mass
13
The distance between the center of mass and center of rigidity
Eccentricity
14
It is either tensile or compressive stress produced by force acting perpendicular to the area
Normal stress
15
It is the contact pressure between separate bodies
Bearing stress
16
It is produced whenever the applied load causes sliding to the sections. It is either a single shear or double shear
Shearing stress
17
Vertical spacing of ties shall not exceed
16(bar diameter), 48(tie diameter and least dimension of the column
18
The value of Fu of E60?
60ksi
19
The value of Fu of E70?
485 MPa
20
The value of Fu of E80?
80ksi
21
The force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
Friction
22
Waht will happen if the center of mass and center of rigidity of a structure does not coincide?
torsional shear stress
23
A building which has a floor which is less than 70% as stiff as the floor immediately above it, or less than 80% as stiff as the average stiffness of the three floors above it
soft storey
24
Refers to the lateral displacement of one level relative to the other level above or below
storey drift
25
To produce zero stress at the bottom, what is the value of e? (prestress problem)
e=h/6
26
Maximum eccentricity about the strong axis is
10%h