Compute the maximum deflection of an 6in by 14in simply supported solid rectangular Hem-fir (S45) beam. The span length is 12ft and the beam is subjected to a uniformly distributed load of 1100 lb/ft. The allowable deflection is /300 of the span length. Is the beam satisfactory? 1100 lb/ft A B 12ft Allowable Stress* (psi) Modulus of Elasticity E (ksi) Species Fe Fe F, Douglas fir 1050 550 625 900 180 1700 Southern pine 1250 410 825 1400 175 1700 Hem-fir 1300 400 500 1000 150 1400 Eastern white pine 725 350 275 600 135 1100 Redwood 1050 650 600 1000 160 1300 A in Wt. Ibt 4, in. S, in. Nominal Size in. Dressed Size in. 6X6 303 840 763 27.7 x8 413 114 190 51.6 x 10 52.3 145 393 82.7 x 11 x 13 X 12 63.3 17.5 121 x 14 74.3 20.6 1130 167 x 16 A5.3 236 1710 220 x 17 x 19 x 18 963 26.7 2400 281 x 20 108 298 3400 7x 74 56.3 156 264 70.3

Compute the maximum deflection of an 6in by 14in simply supported solid rectangular Hem-fir (S45) beam. The span length is 12ft and the beam is subjected to a uniformly distributed load of 1100 lb/ft. The allowable deflection is /300 of the span length. Is the beam satisfactory? 1100 lb/ft A B 12ft Allowable Stress* (psi) Modulus of Elasticity E (ksi) Species Fe Fe F, Douglas fir 1050 550 625 900 180 1700 Southern pine 1250 410 825 1400 175 1700 Hem-fir 1300 400 500 1000 150 1400 Eastern white pine 725 350 275 600 135 1100 Redwood 1050 650 600 1000 160 1300 A in Wt. Ibt 4, in. S, in. Nominal Size in. Dressed Size in. 6X6 303 840 763 27.7 x8 413 114 190 51.6 x 10 52.3 145 393 82.7 x 11 x 13 X 12 63.3 17.5 121 x 14 74.3 20.6 1130 167 x 16 A5.3 236 1710 220 x 17 x 19 x 18 963 26.7 2400 281 x 20 108 298 3400 7x 74 56.3 156 264 70.3

Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter9: Composite Construction

Section: Chapter Questions

Problem 9.1.3P

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