Structural · S-WSTWN

Mechanical Equipment Pad on Metal Deck

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A concrete equipment pad is cast directly on top of a corrugated metal deck with a roughened surface to a one-quarter-inch amplitude. The pad incorporates reinforcing bars consisting of number three bars at twelve inches each way for pads up to five inches thick, and number four bars at twelve inches each way for pads up to six inches thick. Additional edge reinforcement utilizes number four bars along the perimeter of the pad. Where the pad edge runs parallel to the deck flutes, number three bars are spaced at twenty-four inches on center maximum with a minimum of two per side, turned ninety degrees to run parallel to the flutes. Concrete clearance is maintained at one inch top and bottom, with three-quarters-inch clearance at the bottom flute where conflicts occur. The pad thickness ranges from four inches minimum to six inches maximum, verified with mechanical, electrical, and architectural plans.

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