570_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

570_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 06Ch06.qxd 9/24/08 564 6:05 AM Page 564 CHAPTER 6 Stresses in Beams (Advanced Topics) Solution 6.10-11 Hollow box beam h 16 in. 8 in. t 0.75 in. b sY c I/c) 1 1 bh3 (b 12 12 1079 in.4 h 2 8.0 in. Use (Eq. 6-86) with tw 32 ksi SECTION MODULUS (S I PLASTIC MODULUS Z (b t: 2t)2] 2t)(h 170.3 in.3 2t)3 2t)(h 1 [bh 2 4 2t and tf PLASTIC MOMENT (EQ. 6-77) I c S 134.9 in.3 sYZ Mp ; 5450 k-in. SHAPE FACTOR (EQ. 6-79) YIELD MOMENT (EQ. 6-74) sYS MY f ; 4320 k-in. MP MY Z S ; 1.26 Problem 6.10-12 Solve the preceding problem for a box beam with dimensions h The yield stress of the steel is 210 MPa. 0.5 m, b 0.18 m, and t Solution 6.10-12 h sy 0.5 m b 0.18 m t 22 mm PLASTIC MODULUS Z SECTION MODULUS 1 (b 12 1 [bh2 4 Z 210 MPa 4.180 * 106 mm3 I 13 bh 12 I 800.4 * 106 mm4 MP c h 2 S 2t)(h SHAPE FACTOR I c (b c 2t)(h PLASTIC MOMENT 2t)3 250 mm f 6 S 3 3.202 * 10 mm YIELD MOMENT My syS My 672 kN # m 2t)2] ; syZ Z S MP f 1.31 878 kN # m ; ; 22 mm. ...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online