x Incorrect Two beams support a uniformly distributed load of w = 28 kN/m, as shown....
Question 1 (Total 100/3 Marks) Figure 1 (all units are mm) shows a simply supported beam of span 2500 mm with a 5 kN/m load. The cross-section of the beam is a composite section made from two steel plates attached to the top and bottom of a timber section. The top steel plate is 5 mm wide and 20 mm deep. The bottom steel plate is also 5 mm wide but 10 mm deep. The timber section is 50 mm...
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 uniformly-distributed load wis supported by a structure consisting of rigid bar BDF and three rods. Rods (1) and (2) are 17-mm-diameter stainless steel rods that have an elastic modulus of E = 199 GPa. Rod (3) is a 23-mm-diameter bronze rod that has an elastic modulus of E = 101 GPa. Use a = 1.5 m and L = 3.1 m. For a load magnitude of w = 36 kN/m, calculate (a) the normal stress in each rod. (b)...
Chapter 8, Supplemental Question 067 (Go Tutorial) The simply supported beam shown carries a uniformly distributed load of w 28 kN/m on overhang BC. The beam is constructed of a Southern pine [E 12 GPa] timber that is reinforced on its upper surface by a steel [E-200 GPa] plate as shown. The beam spans are LAB-4.5 m and Lec-1.25 m. The wood beam has dimensions of bw-230 mm and dw-310 mm. The steel plate dimensions are bs - 245 mm...
100 lb/tht A cantilever beam 10 ft long carries a uniformly distributed load of w 100 lb/ft. The beam is constructed from a 3-in.-wide by 8-in.-deep wood timber (1) that is reinforced on its upper surface by a 3-in.-wide by 0.25-in.-thick alumi- 3im num plate (2). The elastic modulus of the wood is E 1,700 ksi, and the elastic modulus of the aluminum plate is E 10,200 ksi. Determine 0h Cross-sectional dimensions. the maximum bending stresses produced in timber (1)...
20 KN 20 kN/m From the figure load given, the beam AB is I profile (S shape, American standard, see appendix) Determine: a) The support force A and C. b) Draw the shear force and bending moment diagram. Write down the value on your diagram c) Determine the size of the I beam, write down (or mark on the I beam table in appendix) the type you choose to the nearest calculation. A B 1.5 m 1.5 m 2.2 m...
The simply supported beam is subjected to a uniform distributed load, w of 30 kN/m in the negative y-direction and a point load, P of 15 kN in the negative z-direction. The total length, L of the beam is 6 m. Answer the questions that follow: 'n Eenvoudige opgelegde balk word belas met 'n uniform verspreide belasting van w 30 kN/m in die negatiewe y-rigting en 'n puntlas P = 15 kN in die negatiewe z-rigting. Die totale lengte, L...
The cantilevered beam shown below is a sandwich beam with a plastic core and aluminum alloy faces. The member is subjected to a concentrated load at the free end. The plastic core (240mm x 200 m m in cross section) has an elastic modulus of 100 GPa and allowable normal stress of 220 MPa, while the 6 mm thick aluminum face plates have an elastic modulus of 75 GPa and allowable normal stress of 260 MPa. Question I: 118 marks]...
7.26 Torking stress in either tension or compression is AMS. 92.8 mm x 185.6 mm o MPa. am 3 m long is simply supported at each end and carries a uniformly distributed load of 10 kN/m. The beam at rectangular cross section, 75 mm x 150 mm. Determine the magnitude and location of the peak bending ress. Also, find the magnitude of the bending stress at a point 25 mm below the upper surface at the section midway betwcen supports....
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....