An interior steel beam carries roof panels fastened with one-half-inch diameter by four-inch long lag screws spaced per the interior beam fastener schedule. A spline is required at panel joints where they occur per detail four on sheet S450. Minimum one-and-one-half-inch clearances are maintained at fasteners. The beam top of steel elevation and beam size are determined per plan.
T/STL EL PER PLAN 1/2" DIA x 4" LAG SCREW, SPACING PER SCHEDULE BEAM PER PLAN SPLINE REQ'D AT PANEL JT WHERE OCCURS PER 4/S450 1 1/2" MIN 1 1/2" MIN GRID INTERIOR BEAM FASTENER SCHEDULE LOCATION SPACING (IN) TYPICAL 24 GRID 18
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