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KAISER PERMANENTE Site Prep #1 Electrical Service <br />ASC & Clinic (HUB) March 18, 2020 <br />Everett, WA Project No. 19.05002.00 <br />b. Rod stiffeners as required based on rod diameter and length. <br />C. Correct anchorage hardware for connection to concrete deck, structural <br />steel, or wood structural members. <br />d. Complete installation instructions. <br />2. Rigid seismic restraint brace arm assemblies: Designed for strut nut attachment <br />to minimum 12 gage steel channel with pregalvanized zinc finish per ASTM <br />A525, solid, punched or short slot per engineering calculations. <br />Basis of Design: Pre-engineered brackets with OSHPD pre -approval. <br />Hinged seismic brackets. <br />Assembly: Brackets to be provided from manufacturer with integral 1/2" <br />hex bolts and strut nuts. <br />3. Cable seismic restraint brace arm assemblies: Minimum 7 x 19 pre -stretched <br />galvanized steel aircraft cable appropriately sized for the system load. <br />a. Basis of Design: Pre engineered brackets with OSHPD pre -approval. <br />b. Design Requirements: Hinged seismic brackets. <br />C. Assembly: Brackets factory pre -tied to made -to -length aircraft cable, <br />with integral method for length adjustment by installer. <br />4. Cast -In Place Deck Inserts: For vertical supports and seismic restraint <br />anchorage. <br />Basis of Design: Pre-engineered inserts with OSHPD pre -approval. <br />Design Requirements: For form pour slabs, for metal decks with <br />concrete, internally threaded to accept threaded rod diameters, with an <br />OSHPD approval or other enforcement agency approval. Coordinate <br />installation locations with manufacturer's lay out of seismic restraint <br />locations on contractor's shop drawings. <br />2.4 VIBRATION ISOLATION EQUIPMENT BASES <br />A. Type B-1, Steel Base: Factory -fabricated, welded, structural -steel bases with pre -drilled <br />anchor bolt holes. <br />1. Basis of Design: Mason Model WF. <br />2. Design Requirements: Lowest possible mounting height with not less than 1-inch <br />clearance above the floor. Include equipment anchor bolts and auxiliary motor <br />slide bases or rails. Bases shall be sized to accommodate supports for suction <br />and discharge elbows. <br />3. Structural Steel: Steel shapes, plates, and bars complying with <br />ASTM A 36/A 36M. Bases shall have shape to accommodate supported <br />equipment. <br />4. Height Saving Brackets: Factory -welded steel L brackets on frame for outrigger <br />isolation mountings. <br />5. Frame to be manufactured of beams or channels of minimum section depth <br />equal to 10-percent of the longest span between support isolators, as indicated <br />on the drawings. <br />6. Frame to provide a rigid, distortion free mounting base for supported equipment, <br />which allows no excessive differential motion between driving or driven <br />equipment components. <br />7. Isolation materials manufacturer to coordinate the isolator locations for each <br />piece of equipment as required. <br />VIBRATION AND SEISMIC CONTROLS FOR MECHANICAL PIPING AND 23 05 48 - 7 <br />EQUIPMENT <br />