Question 5: For a rolled steel beam of an unsymmetrical I- section as shown, shown in Fig. 5. If the maximum bending stress in the beam section is not exceed 40 MPa. (20 marks) 5.1 The distance between the centre of gravity of the section and bottom face, y =............mm. 5.2 Moment of inertia, /= ... 106 mm 5.3 Section modulus of the beam ......... 100 mm³ 5.4 Moment which the beam can resist=......kN-m 5.5 The way the beam bends is? Sagging or hogging? Fig. 5 50-> 100 -200- 50 200 50

Question 5: For a rolled steel beam of an unsymmetrical I- section as shown, shown in Fig. 5. If the maximum bending stress in the beam section is not exceed 40 MPa. (20 marks) 5.1 The distance between the centre of gravity of the section and bottom face, y =............mm. 5.2 Moment of inertia, /= ... 106 mm 5.3 Section modulus of the beam ......... 100 mm³ 5.4 Moment which the beam can resist=......kN-m 5.5 The way the beam bends is? Sagging or hogging? Fig. 5 50-> 100 -200- 50 200 50

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A beam having a tee-shaped cross section is subjected to equal 13 kN-m bending moments, as shown. Assume bf = 95 mm, tf = 25 mm, d = 165 mm, tw = 40 mm. The cross-sectional dimensions of the beam are also shown. Determine(a) the centroid location (measured upward from the bottom), the moment of inertia about the z axis, and the controlling section modulus about the z axis.(b) the bending stress at point H (positive if tensile and negative if compressive).(c) the maximum bending stress (positive if tensile and negative if compressive) produced in the cross section.
(B) Q: The cantilever beam shown below has a circular cross section of 50mm outer diameter. Portion AB of the beam is hollow, with an inner diameter of 35mm. If the allowable bending stress is 140 MPa, determine (1) the largest allowable uniformly distributed load (w) that can be applied to the beam; (2) the bending stress at a point that is 7 mm below the top of the beam at section D. 50 mm W D B O! 35 mm A - 750 mm 250 mm
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