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SC-7Atkore <br />Unistrut <br />7 <br />CONVERSION FACTORS FOR BEAMS WITH VARIOUS STATIC LOADING CONDITIONS <br />All Beam Load tables are for single -span (simple) beams supported at the ends.These can be used in the majority of the <br />cases. However, there are times when it is necessary to know what happens with other loading and support conditions. <br />Some common arrangements are shown below. Simply multiply the values from the Beam Load tables by <br />factors given below <br />Load and Support <br />Load <br />Deflection <br />Condition <br />Factor <br />Factor <br />1. Simple Beam, <br />Uniform Load SPAN <br />1.00 <br />1.00 <br />2. Simple Beam, <br />Concentrated Load at Center <br />.50 <br />.80 <br />3. Simple Beam, <br />Two Equal Concentrated Loadcs at 1/4 pts <br />1.00 <br />1.10 <br />4. Beam Fixed at Both Ends, <br />HVAC SUPPORT <br />Uniform Load <br />CONDITION <br />1.50 <br />.30 <br />5. Beam Fixed at Both Ends, <br />Concentrated Load at Center <br />1.00 <br />.40 <br />6. Cantilever Beam, <br />Uniform Load VA <br />.25 <br />2.40 <br />7. Cantilever Beam, <br />Concentrated Load at End <br />12 <br />3.20 <br />8. Continuous Beam, Two Equal Spans, <br />Uniform Load on One Span SPAN �� SPAN <br />1.30 <br />.92 <br />9. Continuous Beam, Two Equal Spans, <br />Uniform Load on Both Ends <br />1.00 <br />.42 <br />10. Continuous Beam, Two Equal Spans, <br />Concentrated Load at Center of One Span <br />.62 <br />.71 <br />11. Continuous Beam, Two Equal Spans, <br />Concentrated Load at Center of Each Span <br />67 <br />.48 <br />EXAMPLE I: <br />Determine load and deflection of a <br />P 1000 beam continuous over one 5' - 0" <br />support and loaded uniformly on one span. <br />SOLUTION: <br />A. From load table for P1000 on page 25 load for a 5'-0" span is <br />680# and deflection is .35". <br />B. Multiply by factors from Table above. <br />Load = 680# x 1.30 = 884# <br />Deflection = .35" x .92 = .32" <br />EXAMPLE II <br />Determine load and deflection of a P 5500 3' - 0" <br />cantilever beam with a concentrated load on <br />the end. <br />SOLUTION: <br />A. From load table P5500 on page 58 load for a 3'-0" span is <br />2180# and deflection is .09". <br />B. Multiply by factors from Table above. <br />Load = 2180# x .12 = 262# <br />Deflection = .09" x 3.20 = .29" <br />Ig Unistrut - The Original Metal Framing <br />