H-line Flashcards

1
Q

How do you calculate supported joist length

A

half clear spans of joists on each side of beam
+plus the beam with
.5 x joist length + beam width + .5x joist

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2
Q

How do you calculate the supported joist length for buildings for more than one beam

A

Each beam calculated separately

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3
Q

Are beam lengths in the codebook Imperial or metric

A

Metric

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4
Q

If the size of the beam is unknown how do you calculate that supported joist length

A

Assume the beam is three ply

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5
Q

What is the definition of the supported joist length

A
  • The amount of load that a beam carries is proportional to the amount of floor that it supports.
  • The amount of floor is the S.J.L.
  • The S.J.L. is a distance equal to the length of joist supported by the beam
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6
Q

Why have framing systems been developed ?

A

To construct low rise residential and commercial buildings up to 3 floors

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7
Q

On which framing system is the standard stud length based

A

Standard platform framing

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8
Q

Which framing system is used to create large open spaces

A

Post, beam, plank construction

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9
Q

Why would the foundation design be different for post, beam and plank framing?

A

To support concentrated loads

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10
Q

Which framing system is the fastest to construct

A

Platform frame construction

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11
Q

Which framing system requires its components to be designed by registered professional engineer

A

Post, beam, plank construction

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12
Q

Which part of building code covers the design of platform framing

A

Part nine

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13
Q

Which type of framing system usually uses wood trusses

A

Platform frame construction

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14
Q

What must be done if changes are made to the structure of a woodframe

A

A complete review of design

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15
Q

Went to exterior finishes require special attention to shrinkage and settling

A

Masonry veneer and cement stucco

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16
Q

What is formed when two roofs intersect

A

Valley

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17
Q

What is done to allow the attic space to be used for living space

A

Building gable dormers with windows

18
Q

What is another name for cripple stud

A

Trimmed stud

19
Q

What are purlins

A

Beams used to support rafters or ceiling joists that run at right angles to rafters

20
Q

What are the purposes of Girts

A

Blocking that stiffen the wall or acts as fire stops

21
Q

With three functions does sheathing provide

A

Supports the finishes
Laterally supports the studs, joists or rafters
Braces the floor, wall or roof diagonally

22
Q

How does a greater differ from a beam

A

It is a large beam

23
Q

Explain the difference between a header and a trimmer and floor framing

A

Headers are perpendicular to the floor joist

Trimmers are parallel

24
Q

What are two types of studies that are not full

A

Cripple, Jack

25
List three members that can be used to support the ceiling finish
Ceiling joists, ceiling rafters, roof joists
26
Where are collar ties used
Used to strengthen rafters and reduce unsupported span
27
What are airspaces
The gaps are on the ends of members such as a beam pocket allowing air to circulate and preventing decay
28
What does the term breaking joints mean
Describe staggering the joints in cheating or top plates usually offset by 4 feet but according to code by 2 studs or more
29
What is a cornice
I would projection of the roof where it meets the wall
30
What is a camber
And upward curve built into it to prevent sagging the due to its own weight or its load
31
What is a soffit or plan over
The underside of a building component
32
When is another name for cornice
And eave
33
What is a gable
The triangular shaped end of the gable roof
34
What is the purpose of a rough opening
To allow for doors windows there's other items
35
What is the density of wood
500 to 600 kg cubed
36
What is the density of steel
8000 kg cubed
37
What is the density of concrete
2400 kg cubes
38
Why does using wood for window fans reduce condensation on the inside surfaces
Doesn't sweat when exposed to differences in temperature
39
How long does it take for Wood to mentor to a size that it can be harvested
40 to 100 years
40
List five engineered building products
Particleboard, waferboard, dense fiberboard, parallel strand beams, plywood
41
What happens to Wood when exposed to atmospheric changes
Swells or shrinks
42
How can a wood beam and that sporting events steel beam after a fire
It burns slower than the HoT MetaL weakening