Question 1

The clear height of openings in CMU walls is

Accepted Answer

A) 3/8 in. greater than the multiples of the masonry unit module. 
B) 1/8 in. less than the multiples of the masonry unit module. 
C) 1/8 in. greater than the multiples of the masonry unit module. 
D) 3/8 in. less than the multiples of the masonry unit module. 
E) none of the above.

Question 2

Why do multistory, load- bearing wall buildings have a cellular type structure?

Accepted Answer

The answer of Why do multistory, load- bearing wall buildings...

Question 3

What is the role of vertical reinforcement in masonry walls?

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The answer of What is the role of vertical reinforcement...

Question 4

The most commonly used method of connecting tilt- up walls to the slab- on- ground is

Accepted Answer

A) a continuous steel angle welded to panels and the slab- on- ground. 
B) a continuous concrete closure strip in the slab- on- ground. 
C) individual steel plates welded to panels and the slab- on- ground. 
D) A or C. 
E) B or C.

Question 5

What are the bond beams in masonry walls constructed of?

Accepted Answer

The answer of What are the bond beams in masonry...

Question 6

To provide continuous insulation in a tilt- up wall building, the choice generally is the use of

Accepted Answer

A) sandwich tilt- up wall panels. 
B) EIFS cladding on wall panels. 
C) masonry veneer cladding with rigid insulation between panels and cladding. 
D) A or B. 
E) B or C.

Question 7

With the help of a sketch, explain what the tunnel form is, and describe its benefits and limitations.

Accepted Answer

The answer of With the help of a sketch, explain...

Question 8

With the help of sketches and notes, explain why the walls in a traditional masonry- bearing wall structure had to be extremely thick.

Accepted Answer

The answer of With the help of sketches and notes,...

Question 9

A load- bearing wall structure works best when the floor plan of the building has

Accepted Answer

A) walls that are continuous up from the foundations. 
B) walls that are distributed almost uniformly in both principal directions. 
C) walls at an upper floor that align with the walls at a lower floor. 
D) all of the above.

Question 10

The thickness of tilt- up wall panels is obviously related to the magnitude of stresses caused in them due to the loads on the panels. Two types of stresses are caused in panels: (i)the stresses caused by gravity loads and lateral loads after the building has been constructed, i.e., in- service loads and (ii)stresses caused during the lifting and erection of panels. Which of these two stresses determines the panel thickness and why?

Accepted Answer

The answer of The thickness of tilt- up wall panels...

Question 11

Bond beams in load- bearing masonry walls are constructed of either masonry bond beam units or as reinforced concrete beams. What is (are)the advantage(s)of using reinforced concrete bond beams?

Accepted Answer

The answer of Bond beams in load- bearing masonry walls...

Question 12

In a tilt- up wall building with a large footprint, the exterior walls are constructed of concrete tilt- up wall panels. What does the interior structure of the building consist of?

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The answer of In a tilt- up wall building with...

Question 13

Bond beams in load- bearing masonry walls are constructed of either masonry bond beam units or as reinforced concrete beams. Why is the use of masonry bond beam units preferred for their construction?

Accepted Answer

The answer of Bond beams in load- bearing masonry walls...

Question 14

The tilt- up wall construction uses load- bearing reinforced concrete walls. Are the tilt- up walls used only for the building exterior or are they used for both interior and exterior walls of the building?

Accepted Answer

The answer of The tilt- up wall construction uses load-...

Question 15

How long after placing concrete in them are the tunnel forms typically removed?

Accepted Answer

The answer of How long after placing concrete in them...

Question 16

In high- rise residential buildings built with site- cast reinforced- concrete bearing walls using tunnel forms, the floors and roofs are generally constructed of

Accepted Answer

A) precast- concrete hollow- core slabs. 
B) wide- flange steel beams and metal deck. 
C) steel joists and metal deck. 
D) lumber joists and beams. 
E) none of the above.

Question 17

What are form liners, as used for casting of tilt- up wall panels?

Accepted Answer

The answer of What are form liners, as used for...

Question 18

With the help of sketches and notes, explain the details of:
a. Double- sealed tilt- up wall panels
b. Tilt- up wall sandwich panels

Accepted Answer

The answer of With the help of sketches and notes,...

Question 19

A bond beam in a masonry bearing wall building must be

Accepted Answer

A) a steel, reinforced- concrete, reinforced- masonry, or wood beam. 
B) a steel or reinforced- concrete beam. 
C) a reinforced- concrete or reinforced- masonry beam. 
D) a steel, reinforced- concrete, or reinforced- masonry beam. 
E) none of the above.

Question 20

Reinforced- concrete tilt- up walls are generally used as

Accepted Answer

A) load- bearing enclosure walls whereas the interior structure consists of a precast- concrete frame. 
B) load- bearing enclosure walls whereas the interior structure consists of a cast- in- place reinforced- concrete frame. 
C) load- bearing enclosure walls whereas the interior structure consists of a structural steel frame. 
D) non- load- bearing enclosure walls whereas the entire structure consists of a structural steel frame. 
E) any one of the above.

Exam 26: Masonry and Concrete Bearing Wall Construction

The clear height of openings in CMU walls is

Why do multistory, load- bearing wall buildings have a cellular type structure?

What is the role of vertical reinforcement in masonry walls?

The most commonly used method of connecting tilt- up walls to the slab- on- ground is

What are the bond beams in masonry walls constructed of?

To provide continuous insulation in a tilt- up wall building, the choice generally is the use of

With the help of a sketch, explain what the tunnel form is, and describe its benefits and limitations.

With the help of sketches and notes, explain why the walls in a traditional masonry- bearing wall structure had to be extremely thick.

A load- bearing wall structure works best when the floor plan of the building has

Bond beams in load- bearing masonry walls are constructed of either masonry bond beam units or as reinforced concrete beams. What is (are)the advantage(s)of using reinforced concrete bond beams?

In a tilt- up wall building with a large footprint, the exterior walls are constructed of concrete tilt- up wall panels. What does the interior structure of the building consist of?

Bond beams in load- bearing masonry walls are constructed of either masonry bond beam units or as reinforced concrete beams. Why is the use of masonry bond beam units preferred for their construction?

The tilt- up wall construction uses load- bearing reinforced concrete walls. Are the tilt- up walls used only for the building exterior or are they used for both interior and exterior walls of the building?

How long after placing concrete in them are the tunnel forms typically removed?

In high- rise residential buildings built with site- cast reinforced- concrete bearing walls using tunnel forms, the floors and roofs are generally constructed of

What are form liners, as used for casting of tilt- up wall panels?

With the help of sketches and notes, explain the details of: a. Double- sealed tilt- up wall panels b. Tilt- up wall sandwich panels

A bond beam in a masonry bearing wall building must be

Reinforced- concrete tilt- up walls are generally used as