DepartmentAnswer SheetName:Date:Course:Time:2.A Rigid beam with negligqible mass ispinned at one end and supportedby two ROds, The beam 20as initiallyhORIZOntal before the load as appiedFind the ertical moyement of P 4 PIS120 KNPisSteelAtuminum4m3m3m2m.imp=120 kNAlumınumA=900 mm²E = 70 GPaSteelA= 600mm?E 200 GPa

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Answered: Name: Date: Courset Time: 2. A Rigid…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Oues 1 A machine of mass ? = 500 ?? is mounted on a simply supported steel beam of length ? = 2 ? having a rectangular cross section (height = 0.1 ? and breadth = 1.2 ?) and Young’s modulus ? = 2.06 × 1011 ?/?2 . To reduce the vertical deflection of the beam, a spring of stiffness ? is attached at mid-span, as shown in the figure Determine the value of ? needed to reduce the deflection of the beam by: 25 per cent of its original value. 50 per cent of its original value. 75 per cent of its original value. Assume that the mass of the beam is negligible. Given that the stiffness of the beam and the moment of inertia, respectively, can be calculated as ?beam = 48?? /?3 and ? =1 /12 ?ℎ3
Engineering design questions : An beam having uniform square cross section is '2' metre long supported in bearings at its ends carries a fly wheel weighing '25' kN at the centre, subjected to load which varies from 70’ N to '200' N. Determine the width and depth of a uniform square plate,. The yield strength of the materials is '850' MPa and the endurance strength '550' MPa with FOS = 2. Other correction factors may be taken as follows: For axial loading (Ka) = 0.7; For machined surface (Ksur) = 0.8 ; For size (Ksz) = 0.85 ; For stress .concentration (Kf)=1.0
A cross section of a prestressed bonded beam is reinforced by prestressing tendons having a total area of 925 sq.mm. Specified yield strength of prestressing tendon is 1610.75MPa. Specified tensile strength of prestressing tendon is 1895MPa. And specified compressive strength of concrete of 34.6 MPa. The beam has a width of 300mm and a total depth of 600mm. Distance from the extreme compression fiber to the centroid of prestressing tendon is 490 mm, Pi=1387.5 KN , R=0.8 and Eps=196 GPa a. What is the increased strain corresponding to the decompression of concrete at the level of the steel centroid? b.Using modified strain compatibility analysis, what is the total steel strain? c. Using modified strain compatibility analysis, what is the total steel strain? d. What is the stress in the prestressed reinforcement at nominal strength, fps, using modified strain compatibility analysis? e. What is compressive force on concrete using fps, modified strain compatibility analysis?
A cross section of a prestressed bonded beam is reinforced by prestressing tendons having a total area of 925 sq.mm. Specified yield strength of prestressing tendon is 1610.75MPa. Specified tensile strength of prestressing tendon is 1895MPa. And specified compressive strength of concrete of 34.6 MPa. The beam has a width of 300mm and a total depth of 600mm. Distance from the extreme compression fiber to the centroid of prestressing tendon is 490 mm, Pi=1387.5 KN , R=0.8 and Eps=196 GPa 1. What is the strain resulting from the application of the effective prestressing force? 2. What is the increased strain corresponding to the decompression of concrete at the level of the steel centroid? 3. Using the stress strain graph below, what is the total steel strain for fps equal to 1689.275 MPa? 4. Using modified strain compatibility analysis, what is the total steel strain? 5. What is the stress in the prestressed reinforcement at nominal strength, fps, using modified strain compatibility…
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Name: Date: Courset Time: 2. A Rigid beam with negligible mass is pinned at one end and suppoRted by two Rods, The beam 20ds initially hORIZOntal before the load xas appiea