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Effects of Deck Orientation

Except as noted in Section 10.3.4, floor loads are distributed assuming one-way distribution. Therefore, load distribution to beam members is dependent upon the orientation of the metal deck as assigned by the user. Loads within a bay will be distributed in the direction of the deck to the several members surrounding the bay. For example, no surface load would be applied to a beam that is parallel to the deck span except as a point load from a beam framing into it. In calculating the distribution of the loads, it is assumed that the deck performs as a single simple span between beams within the bay; no continuity of the deck over multiple spans is considered.