I am designing a concrete slab supported by steel beams for live load and a forklift. Is it acceptable to reduce the live load on a beam when looking at the forklift load? Also, should the forklift load be increased for impact? I am trying to design the steel beams by ASD. AISC ASD Manual A4.2 says live load should be increased to account for impact, but only crane systems are mentioned. My thinking on reducing the live load is that the full live load can't be applied if there is an aisle for the forklift. Anyone have any thoughts, or a design guide reference?
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