Chapter 8

Question 1

Drawbacks to masonry construction

Answer 1

Long term deterioration of mortar joints and labor intensiveness of laying individual units by hand

Question 2

Most common concrete masonry units

Answer 2

Hollow concrete blocks

Question 3

The most common size of Hollow concrete block

Answer 3

8x8x16

Question 4

Last structural component to fail in a wood hoisted building

Answer 4

Well constructed masonry wall that has not been undermined or weakened

Question 5

Fire Rated concrete masonry units fire resistance rating of

Answer 5

2-4 hours

Question 6

Masonry can be used for

Answer 6

Non load bearing curtain walls or partitions

Question 7

The height of the building and the method of construction used will

Answer 7

Affect the thickness of a masonry wall

Question 8

Nonreinforced masonry walls are usually limited to

Answer 8

Maximum height of 6 stories

Question 9

Stretcher course has

Answer 9

Bricks placed end to end

Question 10

Soldier course has

Answer 10

Bricks placed vertically on end

Question 11

Head course has

Answer 11

Bricks placed with the end facing out

Question 12

The existence of header courses in a wall

Answer 12

Is one way to identify the method of construction of a masonry wall

Question 13

Masonry wall that is reinforced with steel can

Answer 13

Have reduced thickness

Question 14

Common support for masonry walls is

Answer 14

A series of vertical steel rods placed between two adjacent withers of brick wall

Question 15

3 other forms of reinforcement of masonry wall

Answer 15

Buttresses

Flying buttresses

Pilasters

Question 16

Fire cut in wood joist

Answer 16

Slight angle cut at the end of the joist or beam and its purpose is to allow the beam to fall away freely from a wall in case of structural collapse without acting as a lever to pus against the masonry

Question 17

Masonry over an opening is supported by (3)

Answer 17

Lintel

Arch

Corbel

Question 18

Most common method of supporting load over openings in masonry is

Answer 18

Lintels

Question 19

Parapet is an

Answer 19

Extension of a masonry or steel wall that projects above the roof 1 foot or more

Question 20

Collapse zone are typically

Answer 20

At least 1.5 times the height of the building all around the buildings perimeter

Question 21

Strongest points in a masonry structure

Answer 21

Points of intersection such as stair wells or evaluator shafts and corners of the building

Question 22

Bearing plates used where repairs have been undertaken are likely to be (3)

Answer 22

Less compatible with the architecture of the building steel channels may be used

Not uniformly positioned on a wall

Found in conjunction with other repairs