Laserfiche WebLink
PROJECT EVERETT DOT RTU REPLACEMENT <br /> try TITLE STRUCTURAL CALCS <br /> 4fe 0/Your Building BY RB SCALE NTS JOB# 122224 <br /> 800.669.6223 www.mckinstry.com <br /> DATE 7/18/2022 REF.DWG SHEET <br /> SCOPE: 1O DESIGN SEISMIC ANCHORAGE FOR INCOMING MECH EQUIPMENT. <br /> OCHECK EXISTING STRUCTURE FOR NEW INCOMING MECH EQUIPMENT <br /> PROJECT: EVERETT DOT RTU REPLACEMENT <br /> 709 N. BROADWAY AVE <br /> EVERETT, WA 98201 <br /> MCK JOB NUMBER: 122224 <br /> LOCATIONS: ROOF <br /> DESIGN PARAMETERS: <br /> CODES: ASCE 7-16 IBC 2018 W/WA AMENDMENTS, NDS <br /> LOADS: DEAD: SELF WT OF MECH EQUIPMENT AND OVERSIZED CURB <br /> RTU: <br /> L X W X H = 51" X 47"x 42-1/2" <br /> W = 535# + 100# OVERSIZED CURB = 635# <br /> ROOFING MATERIAL : <br /> W = 8PSF <br /> LIVE: ROOF LIVE LOAD <br /> W = 20PSF <br /> SEISMIC: <br /> SDS = 0.95g <br /> Ip = 1.0 <br /> Ap = 2.5 <br /> Rp = 6.0 <br /> z/h = 1.0 <br /> OMEGA = 2.0 (APPLIED AT CONCRETE CONNECTIONS) <br /> WIND: <br /> V3SEC = 110 MPH <br /> EXP = C <br /> IW = 1.0 <br /> HT = 13'AT ROOF <br /> SNOW: <br /> Is = 1.0 <br /> Pg = 25 PSF <br /> DESIGN APPROACH: <br /> 1. DETERMINE WORST CASE SEISMIC AND WIND LOADS USING EXCEL. <br /> 2. DESIGN CONNECTION OF RTU AND ADAPTER CURB TO EXISTING CURB USING WORST CASE LOADS. <br /> 3. CHECK EXISTING 2X12 FOR ADDED LOAD FROM NEW RTU USING ENERCALC. <br />