2. A short wooden beam of length L 4 ft is constructed by gluing together two...
Exercise E5.2 A beam is to be made by gluing and screwing together four wooden planks of length 2 m, thickness 20 mm and width 120 mm. (a) Determine the second moment of area I for the three configurations shown in cross-section in the figure below. (b) Calculate the mid-span deflection 8 of each of the beams when they are simply supported at their ends and loaded at mid-span with a force F of 100 N. (c) Determine the stiffness...
14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect the lightest rectangular wood beam that can safely support the loads (neglect the weight of the beam). The allowable stress in bending is 1200 psi and in shear parallel to the grain 100 psi 14.54 A simply supported rectangular beam with a span of 6 ft has a concentrated load of 4.1 kip at midspan. Se- lect...
16.6a) A simply supported beam is to span 15 ft. It will support a uniformly distributed load of 2 kips/ft over the full span and a concentrated load of 60 kips at mid-span. What is the required plastic section modulus Zx? (Include self-weight) 16.6b) A simply supported beam is to span 15 ft. It will support a uniformly distributed load of 2 kips/ft over the full span and a concentrated load of 60 kips at mid-span. Deflection is not to...
The built-up beam shown is made by gluing together five wooden planks. Knowing that the allowable average shearing stress in the glued joints is 82 psi, determine the largest permissible vertical shear in the beam. 2 in. 4 in. 12 in བདག་ 5 in. 2 in. 5 in. The largest permissible vertical shear in the beam is Ib.
Question 2 (25 marks) A square wood platform of side-length L = 2.4 m rests on masonry walls. The deck of the platform is constructed of 4 cm thick planks supported on two beams which are 2.4 m long. The beams have a width of 100 mm and height of 150 mm and are supported at their ends by the walls. The structure is designed to support a uniformly distributed load, wA (kN/m2), acting over the entire top surface of...
please can you solve it as quick as possible. of square cross section is built up by gluing together three strips, each 20 mm x 60 mm in cross section (see figure). The beam has a A l 500 mm. total weight of 5 N and is simply supported with span length L 20 mm 20 mm 60 mm 20 mm 60 mm Considering the weight of the beam (q) calculate the maximum permissible CCW moment M that may be...
A simply supported wood beam with a span of L = 16 ft supports a uniformly distributed load of w0 = 305 lb/ft. The allowable bending stress of the wood is 1.30 ksi. If the aspect ratio of the solid rectangular wood beam is specified as h/b = 1.75, calculate the minimum width b that can be used for the beam. A simply supported wood beam with a span of L = 16 ft supports a uniformly distributed load of...
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 wood beam with a span of L = 17 ft supports a uniformly distributed load of w0 = 250 lb/ft. The allowable bending stress of the wood is 1.65 ksi. If the aspect ratio of the solid rectangular wood beam is specified as h/b = 2.25, calculate the minimum width b that can be used for the beam.