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t <br /> s <br /> Project#:GED-328/7170287 � �� Date:8/17/2017 <br /> Site#: WA6064/FA#10013187 �������� ���������� By:NM <br /> 1.0 INTRODUCTION: <br /> This is a 145.0 ft tall building. Existing and proposed antennas and equipment are installed on the existing <br /> sled mounts on the building rooftop. <br /> Coordinates: Latitude 47.9815600°N, Longitude 122.2081400°W <br /> The purpose of this structural analysis is to verify the structural integrity of the existing roof slab and beam <br /> to support the existing Sled mount loading. <br /> 2.0 REFERENCES: <br /> 1. 2015 International Building Code <br /> 2. ASCE 7-10,Minimum Design Loads for Building and Other Structures <br /> 3. AISC 325-11, Manual of Steel Construction <br /> 4. ACI 318-11, Building Code Requirements for Structural Concrete <br /> 5. RF Data Sheet:AT&T,RFDS Name#:STTLWA6064,dated 07/18/2017 <br /> 6. Previous Structural Analysis: CG Engineering,lob#15015.106,dated 01/19/2016 <br /> 7. Redline Construction Drawings:Camp+Associates,Job#WA6064,dated 08/08/2016 <br /> 8. Previous Structural Analysis: PTS Engineering,dated 03/11/2011 <br /> 3.0 ANALYSIS CRITERIA: <br /> • Design Wind Speed: 110 mph(Ultimate 3-sec gust wind)with no radial ice(ASCE 7-10) <br /> • Ice Wind Speed:30 mph (Nominal 3-sec gust wind)with 0.25" radial ice(ASCE 7-10) <br /> • Risk Category: II <br /> • Exposure Category: D <br /> • Topographic Factor: Kzt=1A <br />