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05-05ChapGere.0001

# 05-05ChapGere.0001 - load in shear of 900 kN/m Calculate...

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Built-Up Beams Problem 5.11-1 A prefabricated wood I-beam serving as a floor joist has the cross section shown in the figure. The allowable load in shear for the glued joints between the web and the flanges is 65 lb/in. in the longitudinal direction. Determine the maximum allowable shear force V max for the beam. Solution 5.11-1 Wood I-beam 350 CHAPTER 5 Stresses in Beams 0.75 in. 0.75 in. 0.625 in. z y O 8 in. 5 in. 0.75 in. 0.75 in. t = 0.625 in. z y O h 1 = 8 b = 5 h = 9.5 Problem 5.11-2 A welded steel girder having the cross section shown in the figure is fabricated of two 280 mm 25 mm flange plates and a 600 mm 15 mm web plate. The plates are joined by four fillet welds that run continuously for the length of the girder. Each weld has an allowable
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Unformatted text preview: load in shear of 900 kN/m. Calculate the maximum allowable shear force V max for the girder. z y O 280 mm 15 mm 25 mm 25 mm 600 mm All dimensions in inches. Find V max based upon shear in the glued joints. Allowable load in shear for the glued joints is 65 lb/in. [ f allow 5 65 lb/in. 5 170.57 in. 4 Q 5 Q flange 5 A f d f 5 (5)(0.75)(4.375) 5 16.406 in. 3 V max 5 f allow I Q 5 (65 lb / in.)(170.57 in. 4 ) 16.406 in. 3 5 676 lb I 5 bh 3 12 2 ( b 2 t ) h 1 3 12 5 1 12 (5)(9.5) 3 2 1 12 (4.375)(8) 3 f 5 VQ I Ê V max 5 f allow I Q A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
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