(BQ) Part 2 book "Mechanics of materials" has contents: Shearing stresses in beams and Thin-Walled members, transformations of stress and strain, principal stresses under a given loading, deflection of beams, columns, energy methods. | Page 380 10/28/10 7:56:36 PM user-f499 A reinforced concrete deck will be attached to each of the steel sections shown to form a composite box girder bridge. In this chapter the shearing stresses will be determined in various types of beams and girders. 380 /Volumes/201/MHDQ251/bee80288_disk1of1/0073380288/bee80288_pagefiles Page 381 10/28/10 7:58:18 PM user-f499 /Volumes/201/MHDQ251/bee80288_disk1of1/0073380288/bee80288_pagefiles C H A P T E R Shearing Stresses in Beams and Thin-Walled Members 381 Page 382 10/28/10 7:58:25 PM user-f499 Chapter 6 Shearing Stresses in Beams and Thin-Walled Members * * * Introduction Shear on the Horizontal Face of a Beam Element Determination of the Shearing Stresses in a Beam Shearing Stresses txy in Common Types of Beams Further Discussion of the Distribution of Stresses in a Narrow Rectangular Beam Longitudinal Shear on a Beam Element of Arbitrary Shape Shearing Stresses in Thin-Walled Members Plastic Deformations Unsymmetric Loading of ThinWalled Members; Shear Center /Volumes/201/MHDQ251/bee80288_disk1of1/0073380288/bee80288_pagefiles INTRODUCTION You saw in Sec. that a transverse loading applied to a beam will result in normal and shearing stresses in any given transverse section of the beam. The normal stresses are created by the bending couple M in that section and the shearing stresses by the shear V. Since the dominant criterion in the design of a beam for strength is the maximum value of the normal stress in the beam, our analysis was limited in Chap. 5 to the determination of the normal stresses. Shearing stresses, however, can be important, particularly in the design of short, stubby beams, and their analysis will be the subject of the first part of this chapter. y y M xydA xzdA = xdA V x x z z Fig. Beam cross section. Figure expresses graphically that the .
