Q3: The web of a girder of I-section is 45 cm deep and1 cm thick; the flanges are each 22.5 cm wide by 1.25cm thick. The girder at some particular section has towithstand a total shearing force of 200 kN. Calculatethe shearing stresses at the top and middle of the web.1.25 cm1 cm.1.25cm22.5cm

We are given the following data: Shear force, F=200 kN Section, I-Section

Answered: Q3: The web of a girder of I-section is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Three plates are held together by 2, 11 mm diameter bolts. If a 16 kN load is applied to the plates in shear, what is the shear stress in the bolts in MPa?
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Q2 The shaft in Figure Q2.1 consists of three sections of different diameters and shear moduli as shown. It is fixed to a wall at A and loaded at points B.C and D. GAB 50 GPa dAB = 60 mm 30 kNm ++ 0.1 m Q2 contd. B ** GRC = 70 GPa dac = 80 mm 0.2 m Fig. Q2.1 Gcp= 50 GPa dep 40 mm C 20 kNm Fig. Q2.2 0.1 m D (a) Draw the Torque diagram for the shaft AD. Show all of your working and indicate all key values. (b) Determine the angle of twist for each section of the shaft (AB, BC and CD) and the total angle of twist between A and D. 5 kNm (c) If the shear strength for the entire shaft is 400 MPa, determine the maximum torque each section can withstand. Ø 120 mm 3 bolts equally spaced MEE1004/2021 (d) The shaft is to be fixed to the wall at end A via a flange with 3 equally spaced bolts, on a pitch circle diameter of 120 mm, as shown in Figure Q2.2. If the bolt material has a shear strength of 300 MPa, determine the minimum diameter of the bolts.
A steel truss structure is loaded as shown in Fig. 1. The truss members are made of A36 steel (f, = 36 ksi). All the members are made up of two 3.0"x5.0" (each) parallel flat bars. All the joints have bolt connection (pin connection), acting in double shear. The diameter of all the bolts is 3.0". Determine, •The average normal and shear stresses in bars AB, and Cl and the shear stress in pin H. •The average normal and shear strain in AB, and CI and shear strain in pin H (Given, E = 29x106 psi, G = 11x 106 psi) 4k 4k C IH or GH 8 ft A Pin H JT H 4k 6 @ 8 ft = 48 ft Fig. 1

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Q3: The web of a girder of I-section is 45 cm deep and 1 cm thick; the flanges are each 22.5 cm wide by 1.25 cm thick. The girder at some particular section has to withstand a total shearing force of 200 kN. Calculate the shearing stresses at the top and middle of the web. 1.25cm 1 cm 1.25cm 22.5cm