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Construction drawings > Midterm > Flashcards

Midterm Flashcards

1
Q

What are the 3 types of movement joints?

A
  1. Building separation joint
  2. Structure enclosure joint
  3. Surface divider joint
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2
Q

What are the 3 types of surface divider joints?

A
  1. Control joint
  2. Abutment joint
  3. Expansion joint
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3
Q

Where are the 6 locations in walls where we find joints?

A
  1. Changes in wall direction
  2. Changes in building height
  3. Door and window locations
  4. Significant changes in material thickness
  5. Regular intervals along a continuous wall
  6. Below shelf angles
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4
Q

What are 4 ways to control rain penetration?

A
  1. Rain screen/drainage wall
  2. Pressure equalized rain screen
  3. Mass wall
  4. Face seal
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5
Q

What are the 2 ways to deal with building movement?

A
  1. Strengthen the wall

2. Accommodate movement

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6
Q

How do we strengthen a wall to resist movement?

A

Reinforce the components of the wall to resist stress caused by movement
(Ex. WWM in concrete slabs for shrinkage due to curing, masonry wall joint reinforcement to resist shrinkage cracking of mortar(block-lok/duro-wall), fibreglass mesh behind face coat of EIFS)

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7
Q

How do we accommodate building movement?

A

Install movement joints to accommodate movement, located at regular intervals and where we anticipate the potential for distress

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8
Q

What causes building movement?

A

Wind, seismic, temperature change, loading(live or dead), soil, freeze/thaw, moisture gain/loss

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9
Q

What are some types of movement?

A

Expansion, contraction, creep, deflection, differential movement between different materials

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10
Q

What are the requirements(functions) of a building envelope?

A
  1. Rain penetration
  2. Air flow
  3. Water vapour flow
  4. Temperature/heat flow
  5. Light/solar radiation
  6. Noise
  7. Fire
  8. Other…
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11
Q

What are the components of an exterior wall system?

A
  1. Cladding
  2. Vapour barrier
  3. Insulation
  4. Air barrier
  5. Windows and door openings
  6. Backup system (sheathing)
  7. Structure
  8. Interior finish
  9. Other…
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12
Q

What are the 2 sections of a building envelope?

A
  1. Exterior wall envelope

2. Roof envelope

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13
Q

What is the function of a building envelope?

A

“Provides a barrier between indoor and outdoor environments, so that the indoor environment can be adjusted and maintained within acceptable limits”

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14
Q

What is a structure enclosure joint?

A

Joints designed to separate structural components from non-structural components, so they act independent of each other. Allows for creep and settlement.

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15
Q

Where do you find structure enclosure joints?

A
  • top of partitions or underside of concrete slab

- below shelf angle supporting brick and tied to structural frame

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16
Q

What is a building separation joint?

A

Joint dividing a large building or geometrically complex building into smaller structures that can move independently.
Accommodates volume change, settlement + seismic movement.

17
Q

Where do you find building separation joints?

A
  • at a total division of a building
  • (independent structural frame each side of joint)
  • 150’ to 200’ intervals
18
Q

What is a surface divider joint?

A

Joints designed to accommodate movement in a plane of a floor, roof, wall, or ceiling.

19
Q

What is an abutment joints/where do you find them?

A
  • separates new from existing
  • separates different materials from each other
  • sometimes called “construction or isolation” joints
20
Q

What is a control joint?

A

A deliberately created line of weakness, where cracking will occur. Usually associated with shrinkage, joint will open as materials shrink.

21
Q

Where do you find control joints?

A
  • sidewalks
  • concrete walls + floors
  • cmu walls
  • gypsum walls + ceilings
  • eifs
22
Q

What is an expansion joint?

A

Open seam or gap that can close to allow for expansion of adjacent materials. Vertical or horizontal joints which accept movement without effecting or transferring load or stress to another material.

23
Q

Where do you find expansion joints?

A
  • clay brick
  • calcium silicate masonry (arriscraft)
  • stone
  • aluminium
  • curtain wall
  • other
24
Q

What are the 4 requirements of an air barrier?

A
  1. Continuous
  2. Air impermeable
  3. Durable
  4. Structural

Construction drawings (2 decks)

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