Module 2.1 Flashcards
No matter how well the foundation of a building is constructed, a structure won’t stand if the ________ are poorly assembled.
Floors and sills.
What’s the difference between a beam and a joist?
A beam carries weight to the supporting structures. A joist is used to displace weight across beams, and is usually smaller,
What are the layers of a basic floor? From bottom up
Joist, then Subfloor, then Underlayment, then Finish Floor
Dead Load
The weight of the permanent, stationary construction and any attached equipment, alone.
Firestop
Approved material used to fill air passages in a frame to retard the spread of fire.
Foundation
The supporting portion of a structure, including the footings
Header joist
A framing member used in platform framing into which the common joists are fitted, forming the box sill. Header joists are also used to support the free ends of joists when framing openings in a floor.
Joist Hanger
A metal stirrup secured to the face of a structural member, such as a beam/girder, to support and align the ends of joists flush with the member.
Let-in
Any type of notch in a stud, joist, etc., which holds another piece. The item that is supported by the notch is said to be let-in. (It’s what you think. Imagine lincoln log cabin. They have notches cut out and are let into each other)
Live load
The total of all moving and variable loads that may be placed on a building.
Pier
A column of masonry used to support other structural members, typically girders or beams.
Scab
A length of lumber applied over a joint to strengthen it.
Scarf
To join the ends of stock together with a sloping lap joint so there appears to be a single piece.
Soleplate
The horizontal member of a wall frame.
Span
A term for the distance between structural supprots such as walls, columns, beams, etc.
Single-storey structures built on slabs do not have ____
Floor systems
What are floor systems and how are they used?
Floor systems provide a base for the remainder of the structure to rest on. They are built over other stories, ie: basements and crawl spaces, or a (MAYBE) second story over a first. If a building is one story, it is not needed.
What is a sill:
The horizontal member of the bottom of a wall, window or exterior door frame.
Built up lumber beam:
When instead of a solid beam of raw wood you take multiple planks and attach them to each other, forming a bigger beam (like voltron).
What are the advantages/disadvantages of built up lumber beams?
They don’t warp as easily, but they aren’t as strong either.
Engineered lumber beam:
Its composite wood that is made with glue in the fibers.
What is an I-beam?
It’s that classic metal girder in the shape of an I.
What are the horizontal caps and the ends of an I-beam called?
Flanges.
