Back9.4.4.4.(1)

ATTRIBUTION:

Functional Statement:

F21

To limit or accommodate dimensional change.

F21

To limit or accommodate dimensional change.

Objective:

OS2.1, OS2.3

 

APPLICATION:

Foundations located in areas where soil movement caused by changes in soil moisture content, freezing, or chemical-microbiological oxidation is known to occur to the extent that it will damage a building to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability that moisture-content-related soil movement, frost heave, pressure due to the formation of ice lenses, adfreeze, and weathering of pyritic material will lead to the cracking of foundations or building superstructures.
This is to limit the probability of compromised structural integrity, which could lead to:
  • structural failure, or
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements.
This is to limit the probability of harm to persons.

ATTRIBUTION:

Functional Statement:

F21

To limit or accommodate dimensional change.

F21

To limit or accommodate dimensional change.

Objective:

OP2.1, OP2.4, OP2.3

 

APPLICATION:

Foundations located in areas where soil movement caused by changes in soil moisture content, freezing, or chemical-microbiological oxidation is known to occur to the extent that it will damage a building to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability that moisture-content-related soil movement, frost heave, pressure due to the formation of ice lenses, adfreeze, and weathering of pyritic material will lead to the cracking of foundations or building superstructures.
This is to limit the probability of compromised structural integrity, which could lead to:
  • structural failure,
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements, which could lead to further compromised structural integrity, or
  • an inability to resist expected loads, which could lead to
    • the excessive deformation or deflection of walls, or
    • the excessive deflection or vibration of floors.
This is to limit the probability of:
  • the space being unsuitable for its intended use, or
  • damage to the building.

ATTRIBUTION:

Functional Statement:

F21

To limit or accommodate dimensional change.

Objective:

OH1.1, OH1.2, OH1.3

 

APPLICATION:

Foundations located in areas where soil movement caused by changes in soil moisture content, freezing, or chemical-microbiological oxidation is known to occur to the extent that it will damage a building to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability that moisture-content-related soil movement, frost heave, pressure due to the formation of ice lenses, adfreeze, and weathering of pyritic material will lead to the cracking of foundations or building superstructures.
For walls serving as an environmental separator or supporting an environmental separator, this is to limit the probability of:
  • pollutant ingress (from the exterior or from adjacent interior space, including soil gas, combustion products from parking garages, and particulates),
  • precipitation ingress,
  • condensation, or
  • moisture ingress from the ground.
This is to limit the probability of:
  • an inadequate control of relative humidity or water accumulation,
  • the generation of pollutants from biological growth or from materials that become unstable on wetting, or
  • deterioration, which could lead to compromised integrity of elements supported by foundation walls.
This is to limit the probability of:
  • negative effects on the air quality of indoor spaces,
  • the inadequate thermal comfort of persons, and
  • contact with moisture.
This is to limit the probability of harm to persons.

ATTRIBUTION:

Functional Statement:

F21

To limit or accommodate dimensional change.

Objective:

OH4

 

APPLICATION:

Foundations located in areas where soil movement caused by changes in soil moisture content, freezing, or chemical-microbiological oxidation is known to occur to the extent that it will damage a building to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability that moisture-content-related soil movement, frost heave, pressure due to the formation of ice lenses, adfreeze, and weathering of pyritic material will lead to the cracking of foundations or building superstructures.
This is to limit the probability of:
  • compromised structural integrity, or
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements, which could lead to compromised structural integrity.
For floors and elements supporting floors, this is to limit the probability of excessive movement, deflection or vibration of floors, which could lead to negative effects on the psychological well-being of persons.

ATTRIBUTION:

Functional Statement:

F21

To limit or accommodate dimensional change.

F21

To limit or accommodate dimensional change.

Objective:

OS3.1, OS3.7

 

APPLICATION:

Foundations located in areas where soil movement caused by changes in soil moisture content, freezing, or chemical-microbiological oxidation is known to occur to the extent that it will damage a building to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].

INTENT:

To limit the probability that moisture-content-related soil movement, frost heave, pressure due to the formation of ice lenses, adfreeze, and weathering of pyritic material will lead to the cracking of foundations or building superstructures.
This is to limit the probability of:
  • compromised structural integrity, or
  • for environmental separators or elements supporting environmental separators, the displacement or failure of required environmental separation elements, which could lead to the deterioration of building elements, which could lead to compromised structural integrity.
This is to limit the probability of:
  • the excessive deflection or vibration of directly or indirectly supported floors, which could lead to persons losing their balance, tripping or falling, which could lead to harm to persons, or
  • the excessive movement or deformation of directly or indirectly supported walls with windows or doors, which could lead to compromised operation of doors or windows required for egress in an emergency.
This is to limit the probability of harm to persons.