Ch 4 Masonry Wall Collapse Flashcards
Collapse is the most common type of masonry wall failure that occurs at fires? Pg 55
90 degree angle
What often supports the parapet wall over a one- or two-story commercial building with large display windows
under it? p. 61
Steel beams
Which is the most common type of masonry wall failure that occurs at fires? p. 55
90-degree angle
Which type of masonry wall collapse is caused by the collapse of a bowstring timber truss roof? p. 58
Inward/outward
What is used to support the marquee?
p. 62
Cantilever beam
What is often times used to support the marquee? p. 62
Parapet wall
Which type of wall collapse can be caused by a force directed against the inside surface of the collapsing
wall? p. 58
Inward/outward
Which part of the wall strikes the ground when a 90-degree angle collapse occurs with a masonry wall?
p. 55
Top
How would a cornice fail in the event of fire? p. 61
Collapse at one end and swing across the front of the building
Where do bricks land during a curtain-fall collapse? p. 57
Near the base of the wall
What is the continuation of an exterior wall above roof level? p. 60
Parapet
Which of the following was responsible for the death of
twenty-one Chicago firefighters in a meat packing plant in Chicago in 1910? p. 61
Canopy collapse
Which of the following is different in that it burns and spreads fire?p. 63
Cornice
What is the collapse zone equal to as a general rule? p. 60
The height of a wall
Where do masonry walls often separate the other enclosing
walls? p. 56
Corners
