Slabs
_____-___ slabs span parallel lines of support formed by beams or walls.
One-way
Two-way flat slabs are reinforced in both directions at ____ degrees to each other
90
Elevated slab forms require shoring for support during the _____ and ____ of
the concrete
casting and curing
A _____ /_____ system is often used for floors that will be required to bear heavy loads
beam/girder
The _______ ____, resting on shoring framework, are the bottom forms for the slab joists that will be cast along with the slab
plywood strips
One-way slabs can support relatively high loads over short spans; they are generally used for spans of less than __'
20'
Two - way slabs vary in thickness from ___" to ___" with spans up to 32 feet.
5 inches to 10 inches
Shoring is a temporary structure designed to carry the _____ that may be imposed on
the formwork during construction
weight
On a beam and girder system they are tied to and rest on the ______
columns
Due to their expense, beam-and-slab floors are typically used only for special applications involving _____ ___ loads
heavy live
Two-way flat slabs range in thickness from 4 inches to 12 inches, depending on the span width, which is usually less than ___'
34'
Two - way joist slabs thickness usually ranges from 3 inches to 5 inches and spans can be ___' to ___'
25 feet to 50 feet
Shoring is removed when the concrete reaches a ____ _____
specified strength
In some cases, a ____ _____ is placed between the column and the slab.
drop panel
_____ or _____ forms may be set onto a column or across a series of columns
Beam or girder
Two-way slabs are commonly used for _____ ______ and _____ _____
storage buildings and parking garages
_______ slabs combine the compressive strength
of concrete and the tensile strength of steel to form a bonded combination that is stronger than either material by itself
Composite
The _______ for shores shall be sound, rigid and capable of carrying the maximum intended load.
Mudsills
Commercial pan forms are molded steel or ___ forms that are used to construct concrete slab-and-beam joist systems
FRP ( Fiber-Reinforced Polymer )
With large beam forms, stiffeners (studs), ____, braces, and form ties may be used as they are with wall forms
walers
Two-way flat plate slabs are lighter-duty versions of two-way solid flat slabs without ____ _____
drop panels
Posttensioning tendons are made of very high-strength ______-______ ______ that is sheathed in plastic
stranded-steel cable
To avoid eccentric loads on U-heads and top plates is done by centering the ______ on it's members
Stringers
Manufactured ____ ___ are also available to form one-way joist slabs
steel pans
___________ beam-and-slab forms reduce the amount of time and number of carpenters
required to construct beam and slab forms
Manufactured