Ch. 9 Ordinary Construction Flashcards
The chief common characteristic of ordinary construction is that the exterior walls are made of _____
Masonry
A _____ separates the top floor ceiling from the roof
Cockloft
Buildings wider than _____ feet need interior masonry walls or a column, girder, and beam system.
25
The principal interior collapse potential is often found in weak _____
Connections
As the height of the building increases the _____ of the wall increases
Thickness
The desire for a wider span and the availability of construction cranes have led to the widespread use of unprotected _____ for roof framing
Steel
_____ is made by spreading a coat of gray concrete on lath, then applying a coat of red concrete and cutting away to expose gray
Imitation brick
_____ , even if they are patched, indicate weakness in the wall that may be due to inadequate foundations
Cracks
A _____ crack may indicate that the wall is being pushed out by steel roof beams that are elongating in summer heat
Horizontal
Reinforced concrete lintels are commonly used in _____ walls.
Masonry
_____ must be counterbalanced, usually by tying the wall to the interior structure.
Eccentric loads
Brick or masonry walls that separate one electrical transformer from another are often specially reinforced to resist _____
lateral impact
A _____ is a passageway, usually vertical, cut into a masonry wall for a pipe or conduit
chase
A _____ cut into an existing wall presents a serious weakness
chase
Old _____ beams are sometimes turned upside down resulting in a very small bearing surface for the beam on the wall
fire-cut
Adjustable steel _____ or simple steel posts maybe used to support overloaded beams and are vulnerable to early failure.
Jack Posts
Joist hangers are points of _____
Weakness
_____ connections must be made whenever an opening is made in a wooden floor
Beam to Beam
The best way to connect beams to girders is to _____
place the beams on top of the girders
A solid iron pin of much smaller diameter than a column used to connect wooden columns in the end.
Pintle
A _____ is a vertical shaft with windows that provides light and ventilation to enclose rooms
Light well
A firefighter stepping onto a roof imposes a _____ on the roof at least twice of his or her weight
Momentary Load
_____ are also known as arched trusses
Bowstring trusses
A steel tension rod ties the ends of the arch together to eliminate the need for the masonry
Tied arch
Interior masonry walls are _____ than wooden interior walls
Thicker
When openings are made in walls to connect buildings, _____ should be provided.
Fire doors
Outside sprinkler systems should be tested _____ because the “open” nozzles can become clogged.
Annually
A method to improve firefighter safety is to set up a _____
Board of Building Review
