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Indiana Administrative Code (Last Updated: December 20, 2016) |
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Title 675. FIRE PREVENTION AND BUILDING SAFETY COMMISSION |
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Article 675IAC14. ONE AND TWO FAMILY DWELLING CODE |
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Rule 675IAC14-4.3. 2005 Indiana Residential Code |
Section 675IAC14-4.3-17. Section R301.5; live load
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Add a subsection to SECTION R301.5 to read as follows: R301.5.1 Live Load Reduction.
1. Tributary floor area. A structural member which supports a tributary floor area of greater than 200 square feet on a given story is permitted to be designed using a reduced uniform floor live load for each qualifying story in accordance with the following formula:
Where: At is the tributary area of floor surface in square feet supported by the structural member and L0 is the floor live load from TABLE R301.5.
2. Multiple stories. When floor, roof, and attic live loads from multiple story levels are applied to a structural member, the live loads may be factored as follows:
L = L1 + 0.7(L2 + L3 +....)
Where: L1 is the live load from TABLES R301.5 and R301.6 producing the maximum individual load effect, and L2, L3, and so forth are live loads from other sources or stories in accordance with TABLES R301.5 and R301.6
(Fire Prevention and Building Safety Commission; 675 IAC 14-4.3-17; filed Jun 13, 2005, 3:00 p.m.: 28 IR 3263, eff 90 days after filing with the Secretary of State; readopted filed Aug 4, 2011, 8:35 a.m.: 20110831-IR-675110254RFA)