Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Seismic > Hiner Videos > Flashcards

Hiner Videos Flashcards

1
Q

What can you assume about soil classifications if it is not given in the problem?

A

Assume it is Soil type D

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

is it possible to have 0% damping?

A

no every structure has some damping

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How do soil types affect the structure period?

A

the softer the soil is, the longer it takes for maximum spectral acceleration to occur in the range

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what happens as damping ratio increases?

A

the curve flattens on the average response spectrum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what design methods are acceptable according to the IBC/CBC?

A

Strength Design, load and resistance factor design, allowable stress design

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what chapter is the site class and SDC information found in?

A

Chapter 3

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what are seismic force resisting elements?

definitionof force resisting element

A

elements that can resist the vertical and horizontal forces of a seismic force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

what is story drift?

formula wise

A

it is the difference between the deflection at the top and bottom of the story under consideration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is p-delta?

A

when a structure undergoes lateral deformation, changing the position of the applied vertical gravity loads, causing additional forces, moments, and displacemtns

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

what is the simplified design procedure?

A

it is a more simple version of the ELF procedure but ALL conditions must be met in order to use these equations

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

what is the simple equation for seismic load effects?

A

E=Eh+Ev

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

what SDC is given to nonstructural components?

those attached to structures

A

they are given the same SDC as the structure they are attached to

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what are nonbuilding structures?

A

structures supported by the earth and are self supporting structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what type of structures are tanks and vessels considered?

A

fluid structures

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

what is the coefficient for diaphragm force?

A

Fpx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

what is assumed about diaphragm weight during the exam?

A

Wpx=Wx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is the good samaritan immunity?

A

write this in

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

how do you determine the r value for a structure with 2 different design categories?

A

when the upper system has a lower R, the design coefficients for the upper system shall be used for BOTH systems

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

how do you determine R for design in seismic loads that are in the SAME direction?

A

your design R value cannot be larger than the smallest R value under consideration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

when dealing with the orthogonal combination procedure, what happens to the forces and their directions?

A

the forces become split up depending on the direction they are applied in. so the direction in which forces are applied is felt 100% and forces perpendicular to the applied are felt and split by 30% ie 100% E-W and 30% NS concurrently

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

when solving a problem with x bracing, what should you find?

A

it is important to find the length of the diagonal brace

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what will happen t your SDC if you have a risk category IV building with a S1 greater than 0.75

A

you will classify the structure as a SDC=F

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

when solving for Cs, what do you need to check for?

A

you will need to plug in the SDS and SD1 value into its respective equation and use the smaller Cs value from either equation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what is a bearing wall system?

A

a system with bearing walls that support all or major portions of the vertical/gravity loads. shear walls provide seismic force resistance.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is the definition of a shear wall?

A

shear panel walls that resist lateral loads and do not support gravity loads

26
Q

what is a building frame system?

A

a structural system WITH an essentially complete space frame that provides support for gravity loads. seismic force resistance is provided by shear walls or braced frames

27
Q

what kind of loads do braced frames support?

A

they resist lateral loads while the bracing DOES NOT support gravity loads

28
Q

what is a moment resisting frame system?

A

a structural system with an essentially complete vertical load carrying frame providing support for vertical gravity loads

29
Q

how does a moment resisting frame resist loads?and what is an example of this system?

A

provides resistance to lateral loads primarily by flexural action of members. ie beams and columns

30
Q

what is a dual system?what direction do they resist in?

A

structural system that essentially combines a building frame system and a moment resisting frame system. dual systems resist lateral loads IN THE SAME DIRECTION

31
Q

what is the equation for the lateral seismic force? Fx

A

Fx=Cvx*V

Cvx = vertical distribution factor and V = seismic base shear

32
Q

what is the equation for Cvx?

A

Cvx = wx(hx)^k / (sum of wihi^k)

Cvx = weight and height of one floor / total sum of weight of each floor * height from base to each floor to the power of k

33
Q

what is the equation for Vx

A

Vx = the sum of vertical seismic forces
Vx = (VCv1) + (VCv2) etc

34
Q

what is the OTM on the roof?

A

OTM on the roof is zero

35
Q

when finding the horizontal force in nonstructural seismic forces, what must you do?

A

you need to calculate both the min and max value and make sure the actual seismic force is between those values

36
Q

when finding the wall anchorage force when can you not include anchor spacing into the wall weight equation?

A

when you have paraphets and they do not include the anchor spacing in the given information

37
Q

what is the difference between non-building structures similar to buildings and non-building structures NOT similar to buildings?

A

non-building structures NOT similar to buildings are supported by the Earth whereas the other nonbuildings structures are a part of the building most times

38
Q

what is Fx?

A

Lateral force - chapter 5

39
Q

what is Fpx?

A

diaphragm force - ch 6

40
Q

what is Fp?

A

anchorage force - ch 7

41
Q

what is the difference between a rigid diaphragm and a flexible diapgrahm?

A

a rigid will deflect under seismic loads while a flexible wont

42
Q

how does diaphragm force carry on a structure?

A

it is a distributed weight over the roof

43
Q

what type of loads do horizontal diaphragms resist?

A

ONLY designed to resist lateral loads therefore only earthquake loads

43
Q

whats another word for flange?

A

chord

44
Q

what does a chord do?

A

it resists bending of the beam

45
Q

what are collectors?

A

they are designed to transmit the horizontal diaphragm reactions to the shear walls

46
Q

what can you plug in, in place for Qe?

A

Qe can be many things but you can use drag force Fd in its place

47
Q

what is the center of rigidity/rotation?

A

the location of the resultant reaction, and the location where the building will rotate and pivot

48
Q

what is the formula for the center of mass?

A

the sum of all component’s weight times their location in the X or Y coordinates divided by the sum of all weight

49
Q

why is plywood so strong?

A

it is strong because it has layers of wood veneer and each layer’s grain travels in a different direction meaning it can resist loads in all directions

50
Q

what is the purpose of subdiaphragms in a building with masonry or concrete structural walls?

A

to transfer the out of plane anchorage forces to the primary diaphragm struts and the main horizontal diaphragm

51
Q

what is the formula for max shear?

A

formula for max shear is V=wx*L/2

52
Q

when i have a problem that requires me to check the rquired spacing, what steps should i take to solving the problem?

A

i should go to the table and plug in all of the values for the given plywood until i find the strength that satisfies the given

53
Q

what are x, k, v, and inverted v bracing?

A

steel braced frames

54
Q

when you hear punching shear, what should you think of?

A

flat slabs

55
Q

what causes out of plane wall damage?

A

lack of vertical reinforcement

56
Q

what are steel jackets?

A

item used to retrofit concrete bridges

57
Q

what chapter contains any liquefaction information?

A

chapter 13

58
Q

when finding the rigidities of walls what is an additional step you must do to find all rigidities?

A

you must all add the rigidities for the walls. even the ones that are not explicitly stated due to the height : depth ratio

59
Q

when do you find the roof unit shear?

A

when finding the drag force in flexible diaphragm

60
Q

in what direction is the force in chord forces applied?

A

chord force is applied PERPENDICULAR to the direction in which force is applied

61
Q

what is the equation for Qe?

A

Qe is equal to the seismic force (V) / length of support

Seismic (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions