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// CODE SNIPPET

501.3.4 Expected Loads

ICC Performance Code for Buildings and Facilities 2012 > 5 Stability > 501 Structural Forces > 501.3 Performance Requirements > 501.3.4 Expected Loads
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Structures, or portions thereof, shall be designed and constructed taking into account all expected loads, and combination of loads, associated with the event(s) magnitude(s) that would affect their performance, including, but not limited to:
  1. Dead loads.
  2. Live loads.
  3. Impact loads.
  4. Explosion loads.
  5. Soil and hydrostatic pressure loads.
  6. Flood loads (mean return period).

    Small: 100 years

    Medium: 500 years

    Large: Determined on a site-specific basis

    Very Large: Determined on a site-specific basis

  7. Wind loads (mean return period).

    Small: 50 years

    Medium: 75 years

    Large: 100 years

    Very Large: 125 years

  8. Wind-borne debris loads.
  9. Snow loads (mean return period).

    Small: 25 years

    Medium: 30 years

    Large: 50 years

    Very Large: 100 years

  10. Rain loads. See Table 501.3.4.
  11. Earthquake loads (mean return period).

    Small: 25 years

    Medium: 72 years

    Large: 475 years, but need not exceed two-thirds of the intensity of very large loads

    Very Large: 2,475 years. At sites where the 2,475-year, 5-percent damped spectral response acceleration at a 0.3-second period exceeds 1.5 g and at a 1-second period exceeds 0.6 g, very large ground shaking demands need not exceed a 5-percent damped response spectrum that at each period is 150 percent of the median spectral response acceleration ordinate resulting from a characteristic earthquake on any known active fault in the region.

  12. Ice loads, atmospheric icing (mean return period).

    Small: 25 years

    Medium: 50 years

    Large: 100 years

    Very Large: 200 years

  13. Hail loads.
  14. Thermal loads.
TABLE 501.3.4
RAIN LOADS
MAGNITUDE OF EVENTDRAINAGE SYSTEMMRI (YEARS)STORM DURATION (MIN.)
SmallPrimary2560
SmallSecondary2515
MediumPrimary5060
MediumSecondary5015
LargePrimary10060
LargeSecondary10015
Very LargePrimary10030
Very LargeSecondary10010

Related Code Sections


501.3.4 Stability, Expected Loads
Structures, or portions thereof, shall be designed and constructed taking into account all expected loads, and combination of loads, associated ...
ICC Performance Code for Buildings and Facilities 2009 > 5 Stability > 501 Structural Forces > 501.3 Performance Requirements > 501.3.4 Expected Loads
501.3.4 Stability, Expected Loads
Structures, or portions thereof, shall be designed and constructed taking into account expected loads, and combination of loads, associated ...
ICC Performance Code for Buildings and Facilities 2015 > 5 Stability > 501 Structural Forces > 501.3 Performance Requirements > 501.3.4 Expected Loads
501.3.4 Stability, Expected Loads
Structures, or portions thereof, shall be designed and constructed taking into account all expected loads, and combination of loads, associated ...
ICC Performance Code for Buildings and Facilities 2012 > 5 Stability > 501 Structural Forces > 501.3 Performance Requirements > 501.3.4 Expected Loads
1708.1 Special Inspections and Tests, General
for the expected loads, an engineering assessment shall be required. The engineering assessment shall involve either a structural analysis or an in-situ load test ...
International Building Code 2018 > 17 Special Inspections and Tests > 1708 In-Situ Load Tests > 1708.1 General
1708.1 Special Inspections and Tests, General
for the expected loads, an engineering assessment shall be required. The engineering assessment shall involve either a structural analysis or an in-situ load test ...
International Building Code 2015 > 17 Special Inspections and Tests > 1708 In-Situ Load Tests > 1708.1 General
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