Problem 3ADetermine the maximum flexural stress (MPa) developed for the beam loaded as shown.7kN/m3mB14 kN/m4mC7 kN/m3mD200mm150mm300mm250mm

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Answered: Problem 3 A Determine the maximum…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A beam is subjected to a single vertical force at mid-span as shown. (Hint: the maximumbending moment occurs at mid-span of the beam)(a) Calculate the maximum bending stress in the beam considering a W16x77 sectionbending about its strong axis (see M9 Handout).(b) Calculate the maximum bending stress in the beam if the beam has a rectangular crosssection which is 16.5” in depth and 10.3” wide.(c) Calculate the % change in the maximum bending stress from the W16x77 section to therectangular section (part a and b). Also, calculate the % change in the in the crosssectional area from the W16x77 section to the rectangular section. Note whether eachchange is an increase or decrease.
QB3
1.)Calculate the height of the neutral axis measured from the extreme compression fiber. 2.) Calculate the strength reduction factor for the given beam. 3.) Calculate the design moment for the given beam. Given b=9.25mm d=152.5mm d(prime)=32.5mm L=1.1m WsubD=6.25kn/m WsubL=8.25kn/m 4 25mm tension steel bars 4 12mm compression steelbars FsubC(prime)=28Mpa FsubY=420Mpa
300 mm--300 mm-150 kN/m The rigid beam shown in Fig. 4-19a is fixed to the top of the three posts made of A-36 steel and 2014-T6 aluminum. The posts each have a length of 250 mm when no load is applied to the beam, and the temperature is T, = 20°C. Determine the force supported by each post if the bar is subjected to a uniform distributed load of 150 kN/m and the temperature is raised to T2 = 80°C. 60 mm- 250 mm -40 mm 40 mm-- SOLUTION Steel Aluminum Steel
2. A simple steel beam is to carry the concentrated loads as shown in the figure. (a) Drav the shear diagram, (b) determine the maximum moment, and (c) determine the wide-flange shape that should be used from the list shown if the allowable normal stress for the grade of steel to be used is 110 MPa 60 KN/m 60 KN/m A B 4 m 1m2 m Shape W310x129 S (cm') 1955 Shape W310x202 S (cm) 5049 3423 W310x143 2155 W310x226 W310x158 2565 W310x253 3853 W310x179 2675 W510x285 4311

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Problem 3 A Determine the maximum flexural stress (MPa) developed for the beam loaded as shown. 7kN/m 3m B 14 kN/m 4m C 7 kN/m 3m D 200mm 150mm 300mm 250m