Structural · S-KXC8Q

Steel Column Base Plate Detail at Concrete Foundation

Materials

Concrete Steel Masonry / CMU

Elements

Columns Floors / Slabs Foundations / Footings Anchors / Embeds Connections / Plates

Connections

Base Plate / Anchorage Bolted Connection

About this detail

A wide-flange steel column connects to a concrete spread footing via a Grade 50 steel base plate, detailed with a complete-joint-penetration weld from the column to the base plate. Four 2-inch diameter ASTM F1554 Grade 105 threaded anchor rods are set within 3-3/4-inch oversized holes featuring 3/4-inch by 5-inch square washer plates, with a 12-inch long debonding sleeve provided at each anchor bolt. The base plate bears on a 2-inch maximum non-shrink grout pad over the concrete footing, which includes a Grade 50 bearing plate measuring 1-inch by 7-inch square embedded near the bottom. A base plate schedule is provided on the drawing specifying minimum plate thicknesses and plan dimensions for W12x72, W14x82, and W12x96 column sizes.

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