77 Ill. Adm. Code 225.8020
Structural Requirements
Section 225
Section 225.8020Â Structural
Requirements
a)Â Â Â Â Â Â Â Â General Design
1)Â Â Â Â Â Â Â Â The buildings and all parts thereof shall be of sufficient
strength to support all dead, live, and lateral loads without exceeding the
working stresses permitted for the materials of their construction in generally
accepted good engineering practice.
2)Â Â Â Â Â Â Â Â Special provision shall be made for loads that have a greater
load than the specified minimum live load, including partitions that are
subject to change of location.
b)Â Â Â Â Â Â Â Â Construction shall be in accordance with the requirements of
National Fire Protection Association Standard l0l: Life Safety Code and the
minimum requirements contained in this Section.
1)Â Â Â Â Â Â Â Â Foundations shall rest on natural solid ground and shall be
carried to a depth of not less than one foot below the estimated frost line or
shall rest on leveled rock or load-bearing piles or caissons when solid ground
is not encountered. Footings, piers, and foundation walls shall be protected
against deterioration from the action of ground water. It is recommended that
soil test borings be taken to establish proper soil-bearing values for the soil
at the building site.
2)Â Â Â Â Â Â Â Â Assumed live loads shall be in accordance with the BOCA
International Building Code.
c)Â Â Â Â Â Â Â Â Provisions for Natural Disasters
1)Â Â Â Â Â Â Â Â Earthquakes:Â In regions where earthquakes have caused loss of
life or extensive property damage, buildings and structures shall be designed
to withstand the force assumptions specified in the BOCA InternationalÂ
Building Code.
2)Â Â Â Â Â Â Â Â Tornadoes and Floods:Â Special provisions shall be made in the
design of buildings, including structural design, in regions where local
experience shows loss of life or damage to buildings resulting from tornadoes
or floods.