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Check Existing Roof Framing <br />Check 2x4 RR @ 24" O.C. <br />Beam Properties <br />Max Simple Span L1 =(Simple Span Distance) <br />Tributary Spacing tw =(Member Spacing) <br />Section Modulus S =bd2/6 <br />Allowable Bending Stress Fb = DF #2 <br />Modulus of Elasticity E = <br />Duration Factors CD = Dead Load <br />CD = Live Load <br />CD = Wind Load <br />Size Factor Cf = <br />Repetitive Factor Cr = <br />Allowable Moment <br />M'Dead =Sx * (Fb * CD * CF * Cr)= <br />M'Live =Sx * (Fb * CD * CF * Cr)= <br />M'Wind =Sx * (Fb * CD * CF * Cr)= <br />NS <br />PAGE NO. 11 <br />Medtronics PV Project - Feasibility Study - Roof 2 DATE: <br />NS STRUCTURAL ENGINEERING, INC MADE BY: JL <br />4642 Rockland Place La Canada <br />Flintridge, CA 91011 <br />CHECKED BY: <br />1.25 <br />1.6 <br />1.5 <br />1.15 <br />357 lb-ft <br />495 lb-ft <br />7.71 ft <br />2.0 ft <br />3.1 in³ <br />900.0 psi <br />1,400.0 ksi <br />0.9 <br />634 lb-ft <br />1851 E Deere Ave - 101118504 & <br />20182282 <br />4/11/2024