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EARTHQUAKE > Module 2 > Flashcards

Module 2 Flashcards

1
Q

is used to transfer the lateral forces acting on the structure to the foundation

A

lateral force-resisting system

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2
Q

are used to provide a continuous load path

A

vertical and horizontal

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3
Q

consists of frames (beams and columns), shear walls, or a combination of both (dual system).

A

structural framing systems

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4
Q

connected at floor level by diaphrams

A

structural framing systems

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5
Q

bearing wall systems has ____ to support most of the gravity load and resist all lateral forces

A

shear walls

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6
Q

bearing wall systems shear walls receive the shear force from the floor diaphragms and transfer the lateral force to the _____

A

foundation

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7
Q

bearing wall systems lacks ____

A

redundancy

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8
Q

bearing wall systems has a comparatively _____ of the response modification coefficient R

A

low value

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9
Q

bearing wall systems consists of vertical load carrying walls located along ____ and at ____ as necessary

A

exterior wall lines
interior locations

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10
Q

common for wood-frame buildings, concrete tilt-up buildings, and masonry walls buildings

A

bearing wall systems

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11
Q

provides support for both gravity and lateral laods

A

moment-resisting frame systems

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12
Q

are detailed to guarantee the large inelastic displacements without compromising the structural integrity of the frame

A

special reinforced concrete of moment-resisting frames

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13
Q

moment-resisting frame systems has no diagonal bracing or ____

A

shear walls

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14
Q

in moment-resisting frame, ____ allow for architectural design freedom

A

open bays

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15
Q

no restrictions on height

A

moment-resisting frame systems

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16
Q

has considerable flexibility and high inelastic deformation capacity

A

moment-resisting frame systems

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17
Q

moment-resisting frame systems highly ___

A

redundant

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18
Q

moment-resisting frame systems with ___ of the response modification coefficient R

A

high value

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19
Q

moment-resisting frame requires ___

A

strong-column or weak-beam design

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20
Q

consists of two independent systems, one to provide support for gravity loads, the other to resist lateral loads

A

building frame systems with shear wall

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21
Q

the ___ resist all lateral loads, and a column and beam frame support most gravity loads

A

shear walls

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22
Q

in building frame systems with shear wall, ________ is not required since gravity frame does not contribute to lateral resistance

A

special ductile detailing

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23
Q

gravity and lateral-force systems are ____

A

independent

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24
Q

building frame systems with shear wall has ____ of the response modification coeff. R

A

high value

25
shear walls must ____ from the foundation to the roof without offsets or extensive openings
extend
26
No seismic design
building frame systems with braced frames
27
consists of a braced frame that resists lateral loads by truss action and an independent moment frame that supports most gravity loads
building frame systems with braced frames
28
it has more ductile and provides more architectural design than a shear wall
building frame systems with braced frames
29
types of bldg. frame systems with braced frames
- special steel concentrically braced frames - ordinary steel concentrically braced frames - buckling-restrained braced frames - steel eccentrically braced frames
30
in special steel concentrically braced frames, the ____ of all the frame members, beams, columns, and braces are coincident
centerline
31
in special steel concentrically braced frames, ______ are resisted by axial forces in the members
applied lateral loads
32
in special steel concentrically braced frames, ______ are placed on the slenderness and compactness of the brace.
limits
33
in special steel concentrically braced frames, ______ must be designed to resist the yield strength of the brace.
brace connections
34
in ordinary steel concentrically braced frames, similar to special steel concentrically braced frame but with ______ of the response modification coeff. R
lower value
35
remains elastic under a seismic excitation
ordinary steel concentrically braced frames
36
does not require the special seismic detailing
ordinary steel concentrically braced frames
37
in ordinary steel concentrically braced frames, _____ is also permitted for ordinary steel concentrically braced frames but not for special steel concentrically braced frames
K-bracing
38
a special type of concentrically braced frames
buckling-restrained braced frames
39
in buckling-restrained braced frames, _____ are used that consist of a steel core surrounded by a casing of steel and mortar to prevent the core from buckling
special braces
40
more ductile than a special steel concentrically braced frame
buckling-restrained braced frames
41
buckling-restrained braced frames and steel eccentrically braced frames has a _____ of the response modification coeff. R than a special steel concentrically braced frame
higher value
42
one end of the brace is connected to the frame
steel eccentrically braced frames
43
link acts as a structural fuse by providing inelastic behavior
steel eccentrically braced frames
44
provides lateral stiffness
steel eccentrically braced frames
45
provide architectural design freedom design
steel eccentrically braced frames
46
less damage to architectural and nonstructural elements during earthquake
steel eccentrically braced frames
47
more expensive than a special steel
steel eccentrically braced frames
48
has a secondary lateral support system coupled with the primary non-gravity-load-bearing lateral support system
dual systems
49
in dual systems, the moment-resisting frame must provide resistance to at ____ of the seismic forces.
least 25%
50
it is basically a dual system
shear wall-frame interactive system
51
in shear wall-frame interactive system, ____ and ____ are designed to resist lateral forces in proportion to their rigidities
shear walls and frames
52
use in zones with low seismicity
shear wall-frame interactive system
53
in shear wall-frame interactive system, _____ is not required
special seismic detailing
54
consists of a structure supported on columns cantilevering from their base
cantilever column systems
55
cantilever column systems lacks ____
redundancy
56
excessive flexibility of the system leads to excessive drift and P-delta instability
cantilever column systems
57
cantilever column systems has ____ for the response modification coeff. R
low value
58

EARTHQUAKE (2 decks)

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