Chapter 2 Building Construction

Question 0

All the structural elements and connections that support and transfer loads

Answer 0

Gravity Resistance System

Question 1

An external source of every building; exerts a continued force on a building

Answer 1

Gravity

Question 2

Forces or other actions that result from the weight of all building materials, occupants and their possessions, environmental effects, differential movement, and restrained dimensional changes

Answer 2

Definition of Loads

Question 3

An external force that acts on a structure is called a what?

Answer 3

A Load

Question 4

The internal forces that resist the are load are called what?

Answer 4

Stress and Strain

Question 5

The force per unit area that produces deformation is called what?

Answer 5

Stress

Question 6

The actual percentage of elongation that occurs when a material is stressed is called what?

Answer 6

Strain

Question 7

The four types of forces

Answer 7

• Compression
• Tension
• Torsion
• Shear

Question 8

The force that squeezes a structural member

Answer 8

Compression

Question 9

Force that stretches a member

Answer 9

Tension

Question 10

A twisting force resulting from application of torque

Answer 10

Torsion

Question 11

Force that occurs within a member when opposing forces pull the member in opposite directions

Answer 11

Shear

Question 12

Weight of the building itself and any equipment permanently attached to it or built in

Answer 12

Dead Loads

Question 13

Dead Loads

Answer 13

Weight of the building itself and any equipment permanently attached to it or built in

Question 14

Fire resistance is closely related to what?

Answer 14

Mass

Question 15

Any load other than a dead load is also known as what?

Answer 15

A Live Load

Question 16

Any live load added after construction is known as…

Answer 16

an Added Live Load

Question 17

A load delivered quickly is known as what type of load?

Answer 17

An Impact Load

Question 18

A load that is applied slowly and remains constant (a heavy safe)

Answer 18

Static Load

Question 19

Static Load

Answer 19

A load that is applied slowly and remains constant (a heavy safe)

Question 20

A force applied by the wind is known as what type of load?

Answer 20

A Wind Load

Question 21

What are the two classifications of loads?

Answer 21

Axial and Eccentric

Question 22

A force that passes through the center of the section; the load is perpendicular to the plan of the section

Answer 22

Axial Load

Question 23

Axial Load

Answer 23

A force that passes through the center of the section

Question 24

A force that is perpendicular to the plane of the section but does not pass through the center, thus bending the supporting members

Answer 24

Eccentric Load

Question 25

Eccentric Load

Answer 25

A force that is perpendicular to the plane of the section that does not pass through the center, thus bending the supporting members

Question 26

Represents the potential fuel available to a fire and the total amount of potential energy (heat) in the fuel

Answer 26

Fire Loads

Question 27

Represents the ratio of the strength of the material just before failure to the safe working stress

Answer 27

Safety Factor

Question 28

A fraction of the safety factor is called what kind of load?

Answer 28

A design load

-If the design load is only 1/10 of the tested strength, the safety factor is 10

Question 29

Elements assembled together into a structure are called a what?

Answer 29

A Structural Frame

Question 30

When a beam is loaded which direction does it deflect the load?

Answer 30

Downward

Question 31

What is a camber?

Answer 31

A slight upward rise in a beam that is designed to deflect downward while under load which will allow the beam to be horizontal under load

Question 32

With the deflection of the beam the top of the beam is _____ with what type of force? The bottom is _____ with what type of force? The length of beam that is unchanged is called the what?

Answer 32

Top— Shortened with compression

Bottom—Elongated with tension

Neutral Axis