Building Construction 11 Fire Resistant Flashcards
Two types of concrete construction
Cast in Place
Precast
Concrete tensile strength and shear resistance
Poor
Cast in place and precast concrete construction differences in tension
Cast in Place post tension and precast pretension
Re: concrete what is casting
Concrete poured into molds
Regarding concrete what are chairs
Keeps rods off form surface for concrete to flow
What is spalling
Lots of surface material when subjected to heat
Concrete is strong in what and weak in what
Strong compression
Week sheer
Regarding concrete tensile strength
None
When a concrete beam is loaded what does it do to the load
Deflects
Concrete continuous beam supported more than two points where is tension
Top of the beam over columns
Bottom of the beam between columns
Regarding concrete beam define stirrups
Vertical reinforcing bars
Aacu stand for in regards to fire resistive construction
Autoclaved aerated concrete units
Autoclave aerated concrete units are all components of what two things
Concrete plus aluminum powder
Three key notes regarding autoclaved aerated concrete units
Lighter than traditional concrete
Easily cut
For hour ASTM rating
Waffle concrete define
Closely spaced beams at right angles with unnecessary concrete formed out
What is left in place form in regards to fire resistive construction
Concrete floors cast on to corrugated steel
What is the concern with the cast in place concrete floor
A slot is left in the wall where the floor to be cast , wind can cause collapse
What construction provides monolithic rigid frame building
Concrete floors in cast in place concrete framed buildings
Hi tinsel strength wire has complete loss of prestress at what temperature
800f
What is jacking the cables
Stressing the tendons during post tension
What fire resistive construction our apartment houses in motels well adapt to
Reinforced masonry
Brief description reinforced masonry
To Wyrges of brick
Width of one brick left between them
Vertical reinforcing rods
Concrete poured in void
Fire resistive construction what is false work
Temporary structure to support concrete during construction
Falsework can represent what percentage of cost of structure
60%
Fire resistive modern office building, as much as what fraction of the height from floor to ceiling may be in ceiling or underfloor
One third
