A rectangular log of wood is floating in water with a load of 100 N at its centre. The maximum shear force in the wooden log is
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- The cross section of a wood beam carries a bending moment M of magnitude 20R lb.-in. acting at 100 to the horizontal. Determine(a)the angle between the neutral axis and the horizontal; and (b) the maximum bending stress acting on the cross section. Note: ( R=990)Problem A rolled steel joist of I section has the dimensions as shown in. This beam of I section carries a u.d.l. of 40 kN/m run on a span of 10 m, calculate the maximum stress produced due to bending. N -200 mm- 360 mm 10 mm 20 mm A 400 mm 20 mmP2 - A rectangular beam has a design moment of 40 kNm. The material has a 200 MPa yield strength. Create a section with a width-to-depth ratio of 0.5 using the elastic and plastic theories, respectively.
- I A vertical steel rod is fixed at the top and supports an 8-kN load at the lower end. The rod is 10 mm in diameter and 25 mm long. Unit weight of steel is 77 kN/m³. What is the total elongation of the rod?A rectangular beam has a concrete strength of 24 MPa. The yield strength of the reinforcing bars is 300 MPa. Width of the beam = 350 mm. What is the ultimate moment capacity of the beam in kN-m?A wood beam 150 mm wide by 300 mm deep is loaded as shown in the figure. If the maximum flexural stress is 10 MPa, find the maximum wo and P that can be applied simultaneously. R₁ 2 m P 2 m @o 2 m R₂
- a) Transform the beam into one made entirely of steel. b) The steel channel is used to reinforce the wood beam. Determine the maximum stress in thesteel and determine the maximum stress in the wood if the beam is subjected to a moment of M=1.2kN.m Est = 200GPa, Ew12GPa. (please give explanations and step by step solutions if possible)A bridge girder AB on a simple span of length L = 20 m supports a distributed load of maximum intensity q at midspan and minimum intensity g/2 at supports A and B that includes the weight of the girder (see figure). The girder is constructed of three plates welded to form the cross section shown. 500 mm L= 20 m 18 mm 1600 mm 500 mm (a) Determine the maximum permissible load q based upon an allowable bending stress oallow = 130 MPa. Round to the nearest tenth. kN Gmax = (b) Determine the maximum permissible load q based upon an allowable shear stresS Tallow = 55 MPa. Round to the nearest tenth. kN Gmax m2. The manufactured wood beam carries the concentrated loads shown. What is the maximum safe value of P if the working stress in shear is 6 MPa? 20 mm 80 mm |3P 2 m 2 m 70 mm B 160 mm -- NA I = 15.52 × 106 mmª 1.0 m 1.0 m 20 mm
- It is not complex, this question for civil engineers expert! A beam is used to support a concentrated load of 12 kN and a distributed load (w). The beam has the following restrains: Fixed support at A, a hinge at B and a roller support at C. If the distributed Load w is 6 kN/m and E is known to be 200 GPa, Determine the following: a. Determine the absolute maximum bending stress in the strut in (MPa). Your solution has to include the shear and bending moment diagram. b. Determine the radius of curvature for member BC in meters. c. It came to your knowledge that the section used has to be changed, calculate the Smin in mm3 for the strut if the allowable stress is 170 MPa. d. If the supports at A and C were changed to pin supports and the hinge at B was removed. How would the maximum bending stress change? Support your claim with numbers. please make sure the answer is correct 100% be accurate and I need clear answer thank youFigure 6: X 5 m 5 m A 5 m 20 KN A simple truss is subjected to 20 kN force at the point A as shown in Figure 6. The reaction force at point C is (in kN): (a) 20 Compression (b) 20 Tension (c) 30 Compression (d) 30 Tension الاختيارات B A O соAn 8 m long steel is simply supported at the left end and 2 m from the right end. It carries a total uniform load of 45 kN/m all throughout its length. STEEL DECION CIVIL ENGINEERING Beam properties: A= 11,500 mm² bf = 250 mm tw- 10 mm d = 350 mm If=: 16 mm lx = 266 x 100 mm If the Beam is laterally supported throughout the beam b) Determine the Maximum Web Shear Stress