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Project Title: <br /> Engineer: <br /> Project ID: <br /> Project Descr: <br /> Beam on Elastic Foundation Project File:Boeing Rail.ec6 <br /> LIC#:KW-06018139,Build:20.23.05.25 KPFF CONSULTING ENGINEERS SEA (c)ENERCALC INC 1983-2023 <br /> DESCRIPTION: Typical Slab with Rail Loads <br /> CODE REFERENCES <br /> Calculations per ACI 318-14, IBC 2018, CBC 2019,ASCE 7-16 <br /> Load Combinations Used : IBC 2018 <br /> Material Properties <br /> fc = 4.0 ksi Phi Values Flexure: 0.90 <br /> fr= fc�2 '7.50 = psi Shear: 0.750 <br /> yf Density = 145.0 pcf P 1 = <br /> Lt Wt Factor = 1.0 <br /> Elastic Modulus = 3,122.0 ksi <br /> Soil Subgrade Modulus = 100.0 psi/(inch deflection) <br /> Load Combinatior)BC 2018 <br /> fy-Main Rebar = 60.0 ksi Fy-Stirrups = 40.0 ksi - -- <br /> E-Main Rebar = 29,000.0 ksi E-Stirrups =29,000.0 ksi <br /> Stirrup Bar Size# = # 3 <br /> Number of Resisting Legs Per Stirrup 2.0 RAIL LOAD OF 64 <br /> Beam is supported on an elastic foundation, \ KIP/AXLE <br /> L(64) L(64) <br /> an= <br /> Cross Section & Reinforcing Details <br /> Rectangular Section, Width= 108.0 in, Height= 18.0 in <br /> Span#1 Reinforcing.... <br /> 9-#5 at 3.0 in from Bottom,from 0.0 to 27.50 ft in this span 9-#5 at 3.0 in from Top,from 0.0 to 27.50 ft in this span <br /> Applied Loads Service loads entered.Load Factors will be applied for calculations. <br /> Beam self weight calculated and added to loads <br /> Point Load : L=64.0k@ 10.160 ft <br /> Point Load : L=64.0 k @ 17.333 ft <br /> DESIGN SUMMARY Design OK <br /> Maximum Bending Stress Ratio = 0.856: 1 Maximum Deflection <br /> Section used for this span Typical Section Max Downward L+Lr+S Deflection 0.000 in <br /> Mu:Applied 183.608 k-ft Max Upward L+Lr+S Deflection 0.000 in <br /> Mn*Phi:Allowable 214.543 k-ft Max Downward Total Deflection 0.075 in <br /> Load Combination +1.20D+1.60L Max Upward Total Deflection 0.012 in <br /> Location of maximum on span 10.029 ft <br /> Span#where maximum occurs Span#1 <br /> Maximum Soil Pressure = 1.086 ksf at 13.75 ft LdComb: +D+L <br /> Allowable Soil Pressure = 2.50 ksf OK <br /> Shear Stirrup Requirements <br /> Entire Beam Span Length:Vu<PhiVc/2, Req'd Vs=Not Reqd, use stirrups spaced at 0.000 in <br /> Maximum Forces&Stresses for Load Combinatior <br /> Load Combination Location(ft) ;ending Stress Results (k-ft <br /> Segment Length Span# in Span Mu:Max phi*Mnx Stress Ratic <br /> MAXimum Bending Envelope <br /> Span#1 1 10.029 183.61 214.54 0.86 <br /> +1.40D <br /> Span#1 1 27.176 -0.00 214.5,0009 0.00 <br /> +1.20D+1.60L <br />