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Structural Calculations Cover Sheet <br /> Project Number: 2015.102 Date: September 2,2015 <br /> Project Name: Griffin Architect: <br /> Structural Design For: Structural design for addition to existing residence <br /> Construction Type: Conventional wood framing with conventional concrete foundation. <br /> CODES <br /> 2012 International Building Code(IBC) S AP <br /> 2012 NDS O�o WASy/Otis <br /> ASCE 7-10 <br /> LOADS <br /> Dead Loads As required <br /> Roof snow Load 25 psf <br /> Floor Live Load 40 psf <br /> Deck Live Load 60 psf <br /> Wind 110 mph,Exposure B,Per ASCE 7-10 Section 28,Kzt= 1.0 <br /> Seismic Per ASCE 7-10 Section 12 <br /> Peak Ground Accelerations(PGA) based on USGS Hazards Program 2003,by Lat/Lon. <br /> PGA 1 sec=.528 PGA .2 sec= 1.386 %V = .142 * DL <br /> Material Design Values <br /> Soils(assumed) Minimum 2,000 psf allowed bearing(subject to field verification) <br /> Concrete fc=2,500 psi; 5-1/2 sack mix, or alternate mix pre-approved by bldg. dept. <br /> Reinforcing Grade 40 or 60; Fy=40,000 psi minimum <br /> Sawn Lumber Joists, Rafters: Hem-Fir#2 and better <br /> Beams: 4x_: DF-L#2 <br /> 6x : DF-L#2 <br /> Posts: DF-L#2 <br /> Studs&Plates: Hem-Fir Standard <br /> Glu-Lam Beams 24F-V4 for simple span beams,24F-V8 for cantilevered beams <br /> Parallam Beams 2.0E PSL, Fb=2,900 psi,Fv=290 psi, E=2.0*10^6 psi(minimum) <br /> Microllam Beams 1.9E LVL, Fb=2,600 psi,Fv=285 psi, E=1.9*10^6 psi (minimum) <br /> Timberstrand Bms 1.7E LSL, Fb=2,600 psi,Fv--400 psi, E=1.7*10^6 psi(minimum) <br /> Anchor Bolts F1554 Anchor Bolts,A307 other bolts <br /> CONSULTING STRUCTURAL ENGINEERING SERVICES,INC. <br /> 6311 - 17th Avenue NE, Seattle WA 98115 (206)527-1288 email john@cses-engineering.com <br /> Structural Engineering Consulting and Design <br />