05-03ChapGere.0017 - b: 9167 1 3080 b 5 130,670 b b 5...

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SECTION 5.8 Shear Stresses in Rectangular Beams 337 M B M 0 M max F IND b (a) R EQUIRED WIDTH b BASED UPON BENDING STRESS 3 (0.280 m)(3.6 m) 2 5 10,500 1 1940.4 b ( b 5 meters) ( M 5 newton-meters) s allow 5 8.2 MPa 5 107,150 b M max 5 bh 2 s allow 6 5 b 6 (0.280 m) 2 (8.2 3 10 6 Pa) s 5 M max S 5 6 M max bh 2 5 10,500 N ? m 1 7 72 (5500 N / m 3 )( b ) 1 7 72 ( g bh )(3.6 m) 2 M max 5 7 PL 12 1 7 qL 2 72 5 7 12 (5000 N)(3.6 m) M max 5 7 PL 12 1 7 qL 2 72 Ê M B 52 PL 3 2 qL 2 18 V max 5 11 P 6 1 5 qL 9 R B 5 17 P 6 1 8 qL 9 R A 5 7 P 6 1 4 qL 9 E QUATE MOMENTS AND SOLVE FOR b: 10,500 1 1940.4 b 5 107,150 b b 5 0.0998 m 5 99.8 mm (b) R EQUIRED WIDTH b BASED UPON SHEAR STRESS 5 9167 1 3080 b ( b 5 meters) ( V 5 newtons) t allow 5 0.7 MPa 5 130,670 b E QUATE SHEAR FORCES AND SOLVE FOR
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Unformatted text preview: b: 9167 1 3080 b 5 130,670 b b 5 0.0718 m 5 71.8 mm N OTE : Bending stress governs. b 5 99.8 mm V max 5 2 bh t allow 3 5 2 b 3 (0.280 m)(0.7 3 10 6 N / m 2 ) t 5 3 V max 2 A 5 3 V max 2 bh 5 9167 N 1 5 9 (5500 N / m 3 )( b )(0.280 m)(3.6 m) 5 11 6 (5000 N) 1 5 9 ( g bh )(3.6 m) V max 5 11 P 6 1 5 qL 9 A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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This note was uploaded on 09/20/2009 for the course COE 3001 taught by Professor Armanios during the Spring '08 term at Georgia Institute of Technology.

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