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� <br />SS E <br />Seplember 27, 1999 <br />Sel/en Constructlon Company <br />228 Ninfh Avenue N. <br />Seatf/e, WA 98109 <br />Alln: Kevin Pelerson <br />Re: Mechanical Equipmenl Plalfortn <br />Fluke Calibration Lab Exlension <br />1420 75'" SW, Everetl, WA 9�206 <br />Slruclural Engineenng Summary <br />Desgn Crileria: 1997 Uniform BuilAirg Cafe <br />Seismic Paramelers: <br />Desgn Live Load�. <br />Allowabk! Soil Bearirg: <br />Descnplbn: <br />,� <br />j� i,! I.� .. I.' '''CC�_� � I I <br />� U <br />� � oEP 7 0 i9.,., <br />Zone 3, Ca = 0.36, S= Sd, I= 1.0 <br />100 psl + 2701?tl mech unil <br />1500 psf <br />i . � lr .,�� , . <br />The �xojecl is a mechanical platform, ap{xoximalely 10' high by 0' wide x 28' long. II is supported b� (G) <br />columns. Abng Ihr. 20' Aimension, next lo a wall, 8' lonc� knee braces are used at each u�lumn. A1 Ihe <br />ends, similar knee braces are us�d. The fronl is braced using only a momenl connQclbn. The lop <br />surface is Y." texl�. red sleel plale. The plalform is localed inside a building and is designed for seismic <br />ani dead i live Irad lorcr,s. The meximum brace force is abou� 3.5 kips. Con�ieclnns aro welded plale <br />connedians. <br />See D�awing S-1 �nA allar.hed .�Ir,ulafon sheels lor lurlhnr infcxmalion. <br />Jerry ALddaugh. PF <br />Structural5ysterns Englneering <br />I'V71 puren Anne Avenue Nanh, Sinte D <br />Seattic, WA 98101 <br />VOO lR5-OBGI (Voiu•) <br />(dOG) 7N5-OA65 (Fan) <br />