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PSAD Flashcards

ibasic natin to

1
Q

The material composition is the same but its mechanical properties are different in every direction.

A

Orthotropic

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2
Q

Refers to the tendency of solid materials to return to their original shape after forces are applied on them.

A

Elasticity

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3
Q

Refers to the stress at which material begins to deform plastically.

A

Yielding

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4
Q

The ability of the material to absorb energy in the plastic range.

A

Toughness

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5
Q

The ability of the material to absorb energy in the elastic range.

A

Resilience

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6
Q

Refers to the ability of a material to deform in plastic range without breaking.

A

Ductility

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7
Q

A point through which the resultant of the resistance to the applied lateral force acts.

A

Center of Rigidity

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8
Q

A point on a structure where the resultant vertical force acts.

A

Center of Mass

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9
Q

Distance between center of mass and center of rigidity.

A

Eccentricity

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10
Q

Which of the following can be measured by a seismometer?

A. Intensity
B. Ground Displacement
C. Focal Depth
D. Reference Points

A

B. Ground Displacement

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11
Q

Which if the following refers to the flexibility of of a structural system.

A. Composite of Stiffness
B. Inverse of Stiffness
C. Rigidity
D. Static Flexibility

A

B. Inverse of Stiffness

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12
Q

The stress point where a material will have appreciable deform when small amount of stress is experienced.

A

Yielding

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13
Q

Greatest stress the can be be applied to an elastic body without causing permanent deformation.

A

Elastic Limit

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14
Q

What will develop if the center of mass and center of rigidity of a structure does not coincide?

A. In-plane offset
B. Flexural Stress
C. Out-of-plane offset
D. Torsional Shear Stress

A

D. Torsional Shear Stress

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15
Q

A building which has a floor which is less than 70% as stiff as the other floor immediately above it, or less than 80% stiff as the average stiffness of the threes floors below it.

A

Soft Story

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16
Q

Refers to the lateral displacement of one level relative to the other level above or below.

A

Story Drift

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17
Q

The point on a structure through which the applied seismic force acts.

A

Center of Mass

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18
Q

Refers to the rigidity of the structure.

A

Reciprocal of Deflection

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19
Q

Which best describes liquefaction?

A. Decrease in pore water pressure
B. Increase in effective stress
C. Sudden drop of shear strength
D. Increase in bearing capacity

A

C. Sudden drop of shear strength

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20
Q

Formula for equivalent stiffness in parallel.

A

Keq = K_1 + K_2

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21
Q

Allowable Stresses for grade of wood problem: What is the formula for allowable value of y?

A

May 2015 - Page 104 - Part 3

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22
Q

What is the formula for minimum thickness of base plate in concrete pedestal?

A

t = sqrt[3fpLb^2 / (0.75Fy)]

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23
Q

What is the formula for cracking moment?

A

Mcr = fr*Ina / yt

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24
Q

Lateral Ties Seismic Provisions Problem:

Volumetric ration of spiral or hoop reinforcement shall not be less than:

A

May 2015 - Page 88 - Item 71

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25
Lateral Ties Seismic Provisions Problem: Transverse reinforcement shall be spaced at distance not exceeding...?
a) One-quarter of minimum dimension b) Six times the diameter of longitudinal reinforcement c) May 2015 - Page 88 - Item 71
26
Purlins Design Problem: How to solve the maximum spacing of purlins?
May 2016 - Page 310 - Item 52
27
Open cylindrical tank given with Mohr's circle problem: How to solve the magnitude of internal pressure?
November 2016 - Page 402 - Item 22
28
Allowable Bending Stress Provision: What is the formula for Lc?
Alam mo na yun
29
Allowable Bending Stress Provision: What is the formula of Fb for non-compact laterally supported beam?
Alam mo na yun!!
30
Allowable Bending Stress Provision: What is the formula for Minimum and Maximum Value of L/rt?
Alam mo na yun!!
31
Allowable Bending Stress Provision: What is the formula for Fb given L/rt is in between of the minimum and maximum value?
Alam mo na yun!
32
Allowable Bending Stress Provision: What is the formula for Fb given L/rt is greater than the maximum value?
Alam mo na yun!
33
Allowable Bending Stress Provision: What is the formula for Fb for all values of L/rt?
Alam mo na yun!
34
Lateral ties design provisions for torsion problem: What is the formula for the additional area of longitudinal reinforcement?
Imemorize mo boi!!
35
Allowable Compressive Stress Provision: What is the formula for Cc?
Alam mo na yun!
36
Allowable Compressive Stress Provision: What is the formula for Fa given kL/r less than Cc?
Alam mo na yun!
37
Allowable Compressive Stress Provision: What is the formula for Fa given kL/r greater than Cc?
Alam mo na yun!
38
Pile lifted by two cables problem: At what distance from pile ends must each cable be placed so that the maximum moment is the least possible value?
May 2017 - Volume 4 - Page 512 - Item 22
39
What are the formula for web yielding stress; and maximum allowable web stress if not given?
November 2018 - Page 817 - Page 42
40
Plastic Analysis Problem: What is the maximum load that it can carry based on design flexural strength of cantilever beam?
November 2018 - Page 819 - Item 46
41
Double Reinforced Concrete Problem: How to solve for moment capacity only given balanced steel ratio?
November 2018 - Page 823 - Item 61
42
A property of a material which it has the same composition at every point but the elastic property may not be the same in all directions.
Isotropic
43
A property of a material that has the same elastic properties in all directions?
Homogeneous
44
A property of a material in which the composition material exhibits elastic properties in one direction from that in perpendicular direction.
Orthotropic
45
Which if the following best describes the location of an earthquake besides epicenter? A. Fault Line B. Dip Angle C. Ground Displacement D. Focal Depth
D. Focal Depth
46
What does seismometer measures? A. Actual displacement B. Composition of ground motion C. Reference point D. Focal depth
B. Composition of ground motion
47
A Ritcher Scale measures ______ of an earthquake. A. Magnitude B. Intensity C. Drift D. Amplitude
A. Magnitude
48
Formula for modulus of elasticity of concrete between 1500 and 2500 kg per cubic meter?
Ec = wc^1.5 * 0.043 * sqrt(fc')
49
Formula for modulus of elasticity of normal-weight concrete?
Ec = 4700sqrt(fc')
50
Formula for modulus of rupture of normal-weight concrete?
fr = 0.063 * lambda * sqrt(fc')
51
Formula for modulus of rupture of normal-weight concrete given split-tensile test?
fr = fct / 0.85sqrt(fc')
52
Formula of total float?
Late Start - Early Start
53
Formula of Free Float?
Early Start - Early Finish
54
Formula of Interfering Float?
Total Float - Free Float
55
Structure Period Formula?
T = Ct * hn^(3/4)
56
Formula for Total Design Base Shear?
V = CvIW/RT
57
Max value of total design base shear?
V = 2.5CaIW/R
58
Min value of total design base shear?
V = 0.11CaIW
59
Min value for total design base shear for Seismic Zone 4
V = 0.8ZNvIW/R
60
Total Design Base Shear using Simplified Static?
V = 3CaW/R
61
Formula for concentrated load Ft at the top of the building?
Ft = 0.07TV
62
Formula of length (s) catenary cable?
Alam mo na yun!!
63
Formula of tensile force at any point of a catenary cable?
Alam mo na yun!!
64
Formula of vertical distance of the lowest point to any point of the cable, y?
Alam mo nayun!!
65
Formula of Belt Friction?
Alam mo nayun!
66
What is derivative of acceleration?
Jerk
67
Formula for coefficient of restitution?
Alam mo na yun!
68
Formula for spacing of hoop steel reinforcement?
Alam mo na yun!
69
Formula for maximum shear stress of a helical spring?
Alam mo na yun!
70
Formula for maximum shear stress of a helical spring using A.M. Wahl's Formula?
Alam mo nayun
71
Formula for deflection of a helical spring?
Alam mo na yun
72
Formula of Shear flow?
Alam na dapat
73
Formula for pitch of shear connectors in built-up members?
Alam na dapat
74
Formula of Flexural Stress using Modulus of Elasticity?
Alam na dapat
75
Simple Beam: Formula of max deflection of midspan from concentrated load?
Alam na dapat
76
Simple Beam Formula of max deflection of midspan from concentrated load at any point on the beam?
Alam na dapat
77
Simple Beam: Moment applied at the right. Formula for max deflection and deflection at midspan?
Aralin mo!
78
Cantilever Beam: Formula for deflection at free end?
Alam na dapaat
79
Cantilever Beam: Formula for deflection at any point?
Alam na dapat
80
Fully restrained Beam: Formula for maximum positive moment?
Aralin mo!
81
Fully restrained Beam: Formula for maximum maximum deflection?
Aralin mo!
82
Three-Moment Equation: Formula for 6Aa/L for concentrated Load?
Alam na dapat
83
Approximate Value of r for concrete circular section?
0.25d
84
Approximate Value of r for concrete rectangular section?
0.3h
85
Three-Moment Equation: Formula for 6Aa/L for applied moment?
Aralin mo!
86
Moment-Distribution Method: Distribution Factor for end roller/hinge?
1
87
Formula for value and location of max moment for simple beam propped at third points with uniform load?
Alam na dapat!
88
Formula for max moment and deflection for simple beam with concentrated load at third points?
Alam na dapat!!
89
Formula for max moment and deflection for simple beam with concentrated load at quarter points?
Alam na dapat
90
Plastic Shape Factor?
Zx/Sx
91
Concrete: Provisions for minimum spacing of lateral ties at all conditions?
Alam na dapat!
92
Concrete: Formula for volumetric spiral reinforcement?
Alam na dapat!
93
Concrete: Bresler's Reciprocal Equation?
Alam na dapat
94
Concrete: Formula for Vc for two-way shear?
Alam na dapat!!
95
Concrete: Formula for Vc for one-way shear?
Alam na dapat!
96
Concrete: Formula for effective flange width for slabs?
Alam na dapat?
97
Concrete: Formula for equivalent column section of W-Beam on a base plate?
Alam na dapat
98
Concrete: Minimum Gross Area of Column?
Alam na dapat
99
Concrete: Minimum main bar spacing of column?
Alam na dapat
100
Concrete: Minimum lateral center-to-center spacing?
Alam na dapat
101
Concrete: Minimum spiral percentage provision?
Alam na dapat

BOARD EXAM (5 decks)

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