Structures

Question 1

What will most likely control the required diameter of a column?

Answer 1

Buckling in the column

Question 2

Which column is most likely to buckle?
1. Pinned to Pinned
2. Moment to Free
3. Moment to Moment

Answer 2

2. Moment to Free

Question 3

What are the 4 column end connections?

Answer 3

1. Pinned Connections
2. Free Connections
3. Moment Connections
4. Translating / Lateral Connections

Question 4

What is the “k-Value”

Answer 4

Likelihood of buckling

Question 5

Does a higher k-value mean?
1. More likely to buckle?
2. Less likely to buckle?

Answer 5

1. More likely to buckle

Question 6

What is the baseline k-value?

Answer 6

1.0

Question 7

What is a moment connection?

Answer 7

Rotation fixed & translation fixed
Flange & web are engaged

Question 8

What is a pinned connection?

Answer 8

Rotation free & translation fixed
Pivot and moment forces are allowed to occur

Question 9

What is a seismic connection?

Answer 9

Rotation fixed & translation free
Used only in earthquake areas

Question 10

What is a free connection?

Answer 10

Rotation and translation free
Think of a flagpole or bridge

Question 11

In most cases, what controls beam sizing?

Answer 11

Bending Moment

Question 12

What is the code minimum deflection in wood construction?

Answer 12

1/4

Question 13

What is shear (v) a function of?

Answer 13

A function of the length (l)

Question 14

What is moment (m) a function of?

Answer 14

A function of the length square (l^2)

Question 15

What is the deflection (δ) a function of?

Answer 15

A function of the length cubed (l^3)

Question 16

Which is more common?
1. Column wins
2. Beam spans 2 bays

Answer 16

1. Column wins

Question 17

What is the maximum bending bending moment formula for a simply support beam?

Answer 17

M = wl^2 / 8

Where:

M = maximum bending moment
w = weight on beam
l^2 = length square

Question 18

What is a typical unit for ‘w’?

Where ‘w’ = weight on a beam

Answer 18

lbs/ft