6.5 kN/m 2) The beam shown in Fig. is made from two boards. Determine the maximum shear stress in the glue necessary to hold the boards together along the seam where they are joined. The supports...
For the beam shown, determine the maximum shear stress Clearly state where this occurs. 6.5 kN/m 4 m4 m ??119.5 '5 , 150mm min 30 mm 150 mm 30 mm
The beam is fabricated from four boards nailed together as shown. Determine the shear stress at points A and B on the web of the beam located at section a-a. Also, determine the spacing of the nails along the sides and the top of the beam if the shear force of each nail along the sides is 197 lb and the top is 1.38 kip. 8000 lb 150 lb/ 3 in 10 12 la 115ft 11.50 /
The distributed load on the beam shown is 2.5 kN/m. What is the maximum shear stress in the beam at the interface between the two members (at 150 mm from the bottom). If nails are used to connect the members and the nails have an allowable shear strength of 2 kN, what is the maximum spacing of the nails at the point of maximum shear? 150 mm 25 m 150 mm 0.5 m 25 mm
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 260 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz =ー3.54 kN-m, and the maximum shear force in the beam is vy =-3.67 kN. Assume s=260 mm, b1 = 33 mm, b2 = 200...
A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 100 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz = −4.84 kN-m, and the maximum shear force in the beam is Vy = −2.96 kN. Assume s=100 mm, b1= 32 mm, b2 =...
P9.049 A wooden beam is fabricated from three boards, which are fastened together with screws, as shown. The screws are uniformly spaced along the span of the beam at intervals of 240 mm. In service, the beam will be positioned so that bending occurs about the z axis. The maximum bending moment in the beam is Mz--4.99 kN-m, and the maximum shear force in the beam is Vy -3.25 kN. Assume s=240 mm, b,-37 mm, b2=240 mm, d1=190 mm, d2=...
As shown in Figure 8, the structural member (beam) is 7m long, carries a 2 kN point load, a 1.2 kN/m uniformly distributed load and is supported at points A and B. The beam is constructed from two pieces of steel plate (2 at 80mm x 8mm) that are welded together with 3mm welds. Section properties for the beam are also listed. Given the support reactions as RAv 5.8 kN and RBv 2.2 kN, as well as the shear force...
6-58 The beam is made from three boards nailed together as shown. If the moment acting on the cross section is M = 1 kip·ft, determine the maximum bending stress in the beam. Sketch a three-dimensional view of the stress distribution acting over the cross section. 6-59 If M = 1 kip·ft, determine the resultant force the bending stresses produce on the top board A of the beam.
The simply supported beam is built up from three boards by nailing them together as shown B 1 100 mm 25 mm 25 mm- 1 200 mm 25 mm The wood has an allowable shear stress of Tallow = 1.3 MPa and an allowable bending stress of allow = 8 MPa The nails are spaced at s = 75 mm, and each has a shear strength of 1.9 kN. Part A Determine the maximum allowable force P that can be...
A flitched beam comprising a steel plate sandwiched between two timber joists is shown in fig. Q2. The three components are secured together along their full length. The stress in timber must not exceed 8 N/mm2 and that in steel must not exceed 150 N/mm2. Calculate the magnitude of the uniform load that the beam can safely carry when the span is 5 m. Young’s moduli: steel = 210 kN/mm2; timber = 10.5 kN/mm2. [88.0 kN] (25 mm Steel plate...