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• Sample of a code review

  
  Code review for State structural loading requirements:
  
  Project: 126' x 569' x 13' building.
  Code: 2000 Michigan Building Code (MBC).
  
  Code applicability for agricultural buildings:
  
  302.1 MBC - Requires that all structures be classified in one of the occupancy
  classes described in ch. 3 MBC. The best fit class for livestock
  structures is Group U - Utility structures, in which "agricultural
  buildings", and "livestock shelters" are listed.
  
  
  312.1 MBC - States that Group U structures are to be constructed in conformance
  with the provisions of the the MBC.
  
  
  Type of Construction: Type II-B noncombustible, unprotected. Table 503 MBC
  limits Group U buildings to 8500 sq. ft, if non-sprinkled. 503.1.2 MBC exempts
  certain buildings that house low hazard industrial processes and require large
  areas to accommodate special equipment. This exemption is likely the best code
  provision to avoid the need for sprinkler systems.
  
  
  Accessibility: Per 1103.2.5; Group U buildings are exempt from accessibility
  requirements except that access is required to paved work areas, and areas open
  to the public.
  
  Design criteria summary for agricultural buildings , State of Michigan:
  
  Code: 2000 Michigan Building Code
  Occupancy: U
  Type of Construction: II-B
  Dead load: Per building manufacturer
  Ground snow load: (see map) psf
  Roof snow load: (see chart) psf
  Ce = 1.0
  Ct = 1.2
  Is = 0.8 (snow importance factor)
  Live load: 20 psf purlins
  12 psf frames
  Dead+Live roof member deflection limit = L/180
  Wind load: 90 mph (Exposure typically C)
  Iw = 0.87 (wind importance factor)
  
  Seismic: Ss: .15
  S1: .06
  Design Category: B
  Site Class: D (unless soil tests determine otherwise)
  Seismic Use Group: I
  Ie: 1.00 (seismic importance factor)
  
  Ground snow Roof snow
  psf (from map) psf
  20 16.0
  25 16.8
  30 20.2
  35 23.5
  40 26.9
  50 33.6
  60 40.3
  70 47.1
  80 53.8
  90 60.5
  100 67.2

  
  
  

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Structural Solutions LLC

8466 Slee Rd.

Onsted, MI 49265

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General Information:     Thomas R. Price, P.E.

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