2) You were engaged as a consulting engineer to carry out a structural assessment on anexisting reinforced concrete building and encountered a beam with the cross-sectionshown in Figure 2 below. Non-destructive tests carried out revealed that the materialstrengths are f = 3000 psi and fy = 60,000 psi. Determine the design momentcapacity of this beam section.C.S.Z)(27 in.)(21.5 in.)LE2 #94 # 112(14 in.)Figure 2

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Steel Design (Activate Learning with these NEW titles from Engineering!)

6th Edition

ISBN:9781337094740

Author:Segui, William T.

Publisher:Segui, William T.

Chapter1: Introduction

Section: Chapter Questions

Problem 1.5.3P: A tensile test was performed on a metal specimen having a circular cross section with a diameter 0....

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The results of a tensile test are shown in Table 1.5.2. The test was performed on a metal specimen with a circular cross section. The diameter was 3 8 inch and the gage length (The length over which the elongation is measured) was 2 inches. a. Use the data in Table 1.5.2 to produce a table of stress and strain values. b. Plot the stress-strain data and draw a best-fit curve. c. Compute the, modulus of elasticity from the initial slope of the curve. d. Estimate the yield stress.
A tensile test was performed on a metal specimen having a circular cross section with a diameter 0. 510 inch. For each increment of load applied, the strain was directly determined by means of a strain gage attached to the specimen. The results are, shown in Table: 1.5.1. a. Prepare a table of stress and strain. b. Plot these data to obtain a stress-strain curve. Do not connect the data points; draw a best-fit straight line through them. c. Determine the modulus of elasticity as the slope of the best-fit line.
A tensile test was performed on a metal specimen with a diameter of 1 2 inch and a gage length (the length over which the elongation is measured) of 4 inches. The dam were plotted on a load-displacement graph. P vs. L. A best-fit line was drawn through the points, and the slope of the straight-line portion was calculated to be P/L =1392 kips/in. What is the modulus of elasticity?
The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.
An applied torque results in a shear strain (y) of 3.75 x 103 in a solid circular steel shaft. At this strain, a portion of the shaft cross- section yields as shown in Figure 2. Determine the magnitude of the applied torque. Take G = 80 GPa and yy = 2.8125 x %3D 10-3 FIGURE 2: Plastic zone 50 mm 200 mm Elastic core
The specimen shown is made from a 25 mm diameter cylindrical steel rod with two 38 mm outer-diameter sleeves bonded to the rod as shown. Knowing that E = 200 GPa, determine (a) the load P so that the total deformation is 0.05 mm, (b) the corresponding deformation of the central portion BC. 38 mm diameter P' 25 mm diameter B 38 mm diameter C 50 mm 75 mm 50 mm
10:59 0.63 a. Y l KB/S VPN tutorial 1.pdf Axlal 1oads are applied to uie compounu rou inal is composeu of an aluminum segment rigidly connected between steel and bronze segments. (a) What is the stress in each material given that P = 10 kN? (b) Find the largest safe value of P if the working stresses are 120 MPa for steel, 68 MPa for aluminum, and 110 MPa for 2. Aluminum Steel A=300 mm² Bronze A=400 mm? A=600 mm² 2P 4P 3m -5m 4m bronze. Answer: a) 0one = 50 MPa; ouminum = 33.3 MPa; oel = 100 MPa ; b) P = 12KN A circular aluminum tube of length L = 400 mm is loaded in compression by axial forces P at the ends. The ou inside diameters are 60 mm and 50 mm, respectively. A strain gage is placed on the outside of the bar to measur strains in the longitudinal direction (axial direction). (a) If the measured compressive strain is ɛ = 550×10-6 , what is the shortening ô of the bar? (b) If the compressive stress in the bar is intended to be 40 MPa, what should be the load P? Answer: a) 8 = 0.22…
a concrete beam simply supported at both ends 300 × 600mm it stressed by 3 cables of 700 mm each ps=1200 n/mm2 e=100mm loss of stress 30% beam is carrying an imposes load of 20 kn/m ec=30, 000 n/mm2 es=2×10 n/mm2 calculate maximum deflection of the beam neglect the impact of creep and shrinkage span of beam=8m solution
In a laboratory test of a beam loaded by end couples, the fiber at layer AB as shown mm while those at CD decrease 70 x 10 mm in the are found to increase 50 x 10-3 280-mm-gage length. Using E = 170 GPa, determine the flexural stress at the top fiber. Answer must be in MPa. Given: a = 40 mm, b = 130 mm, and c = 80 mm. gage length a mm b mm c mm «Previous ext
A steel wire with a diameter of d = 1/16” is bent around a cylindrical drum with a radius ofR = 36”.(a) Determine the maximum normal strain in the wire.(b) What is the minimum acceptable radius of the drum if the maximum normal strain mustremain below yield? Consider an elastic modulus of 30000 ksi and yield stress of 100ksi.(c) If R = 36”, what is the maximum acceptable diameter of the wire if the maximum normalstrain must remain below yield?
The failure stress of a homogeneous steel bar having a diameter of 10 mm is 250 MPa. Using a factor of safety of 2.0 and if the elastic mođulus and length of the bar is 200 GPa and 2 m respectively, calculate the elongation in mm of the bar corresponding to the maximum load it can support. (А) 5 (в) 2.5 1.25 D) 0.625
In a laboratory test of a beam loaded by end couples, the fiber at layer AB as shown are found to increase 50 x 103 mm while those at CD decrease 60 x 10-3 mm in the 240-mm-gage length. Using E- 190 GPa, determine the flexural stress at the top fiber. Answer must be in MPa. Given: a 40 mm, b= 130 mm, and c 70 mm.

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