The reaction of the ballast on the railway tie can be assumed uniformly distributed over its...
A
small dam of height h=2.0 m is constructed of vertical wood beam AB
of thickness t=120 mm, as shown in the figure. Consider the beam to
be simple supported at the top and bottom. Assuming that the weight
density of water is 9.81 kN/m^3.
68.) determine the maximum bending stress in the beams
(MPa)
69.) determine the allowable height (in m) of water if the
allowable stress of the vertical wood is 1.0 MPa.
A small dam of height...
A simply supported composite beam 3 m long carries a uniformly distributed load of intensity q= 30 kN/m (see figure). The beam is constructed of a wood member, 100 mm wide by 150 mm deep, and is reinforced on its lower side by a steel plate 8 mm thick and 100 mm wide. (a) Find the maximum bending stresses σw and σs, in the wood and steel, respectively, due to the uniform load if the moduli of elasticity are Ew =...
A wood beam (1) is reinforced on its lower surface by a steel
plate (2) as shown in the figure. Dimensions of the cross section
are b 1 = 220 mm , d = 385 mm , b 2 = 190 mm , and t = 25 mm . The
elastic moduli of the wood and steel are E 1 = 12.5 GPa and E 2 =
200 GPa , respectively. The allowable bending stresses of the wood
and steel...
A5.2 m long simply supported wood beam carries a uniformly distributed load of 12.9 kN/m, as shown in Figure A. The cross-sectional dimensions of the beam as shown in Figure Bare b = 195 mm, d = 485 mm. yy = 81 mm, and yx = 167 mm. Section 3-a is located at x = 1.4 m from B. (a) At section a-a, determine the magnitude of the shear stress in the beam at point H. (b) At section a-3,...
The below wooden double overhanging beam is under a uniformly distributed load W. The wood is weak along the orientation of the grain (or wood cell fibres) that makes an angle of 30° with the horizontal (see figure). The maximum shear stress on a plane parallel to the grain that the wood can sustain is t,max = 5 MPa, and the maximum normal stress of wood is omax = 25 MPa. The Young modulus of this wood is E=15 GPa....
Review Learning Goal: To use the superposition principle to find the state of stress on a beam under multiple loadings The beam shown below is subjected to a horizontal force P via the rope wound around the pulley. The state of stress at point A is to be determined. Part A - Support Reactions and Internal Loading Determine the support reactions Cy and Cz and the internal normal force, shear force, and moment on the cross-section containing point A. Express...
A W410 × 60 steel beam (see
Appendix B) is simply supported at its ends and carries a
concentrated load of P = 300 kN at the center of a 6.0-m
span. The W410 × 60 shape will be strengthened by adding two cover
plates of width b = 250 mm and thickness t = 16
mm to its flanges, as shown. Each cover plate is attached to its
flange by pairs of bolts spaced at intervals of s =...
if the beam is needed to be redesign as cantilevered at
A.Proposed a suitable paramater
A simply supported beam carries multiple point load is shown in Figure 2. Due to a certain requirement, maximum deflection should not be more than 1/360 of the span length. If the allowable bending stress, ơallow 168 MPa and allowable shear stress, allo.-110 MPa. Rasuk yang disokong mudah membawa beban seragam. 30 kN/m diturjukkan dalam Gambarajah 3. Disebabkan sebuah keperluan terientu, pesongan maksimum harus tidak...