Mechanical · M-JAK4B

Steam Boiler Seismic Tiedown Clip Anchorage at Concrete Slab

Materials

Concrete Steel

Elements

Floors / Slabs Anchors / Embeds Connections / Plates

Connections

Base Plate / Anchorage Embed Plate

About this detail

A steam boiler with an approximate operating weight of 10,000 pounds is anchored to a second floor concrete slab utilizing a six-inch high concrete pad and a one-half-inch thick neoprene pad placed between the unit support frame and the concrete structure. The assembly is secured using SA36 steel plates measuring three-sixteenths by four by eighty-eight and five-eighths inches and seismic tiedown clips, part number 103-434. Each clip is anchored with four three-quarter-inch diameter Hilti KB-TZ2 expansion anchors with four-and-one-half-inch embedment. Equipment anchorage design is subject to deferred submittals, and the contractor must provide locations, sizing diameters, embedment depths, and structural calculations based on approved equipment.

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