05-01ChapGere.0008

05-01ChapGere.0008 - 3 2 1 12 (0.575 m)(2.3 m) 3 I 5 bh 3...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Problem 5.5-8 During construction of a highway bridge, the main girders are cantilevered outward from one pier toward the next (see figure). Each girder has a cantilever length of 46 m and an I-shaped cross section with dimensions as shown in the figure. The load on each girder (during construction) is assumed to be 11.0 kN/m, which includes the weight of the girder. Determine the maximum bending stress in a girder due to this load. Solution 5.5-8 Bridge girder 292 CHAPTER 5 Stresses in Beams (Basic Topics) 25 mm 50 mm 600 mm 2400 mm L 5 46 m q 5 11.0 kN/m b 5 600 mm h 5 2400 mm t f 5 50 mm t w 5 25 mm h 1 5 h 2 2 t f 5 2300 mm b 1 5 b 2 t w 5 575 mm 5 129 MPa s max 5 M max c I 5 (11,638 kN ? m)(1.2 m) 0.1082 m 4 5 0.6912 m 4 2 0.5830 m 4 5 0.1082 m 4 5 1 12 (0.6 m)(2.4 m)
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 3 2 1 12 (0.575 m)(2.3 m) 3 I 5 bh 3 12 2 b 1 h 3 1 12 s max 5 M max c I c 5 h 2 5 1200 mm M max 5 qL 2 2 5 1 2 (11.0 kN / m)(46 m) 2 5 11,638 kN ? m b t f h 1 h 2 t w L q Problem 5.5-9 The horizontal beam ABC of an oil-well pump has the cross section shown in the figure. If the vertical pumping force acting at end C is 8.8 k, and if the distance from the line of action of that force to point B is 14 ft, what is the maximum bending stress in the beam due to the pumping force? A B C 0.625 in. 0.875 in. 8.0 in. 20.0 in. A-PDF Split DEMO : Purchase from www.A-PDF.com to remove the watermark...
View Full Document

Ask a homework question - tutors are online