A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape areshown in the second figure. Assume LAB - 8 ft, Lac-3 ft. Lco=3 ft. Loe-3 ft. Pc-2070 lb. Pe- 1830 lb. WAB=930lb/ft, b₁-9 in., b₂-2 in., b3-6 in., dj-2 in., d₂-8 in, dj-2 in. Consider the entire 17-ft length of the beam anddetermine:(a) the maximum tension bending stress oy at any location along the beam, and(b) the maximum compression bending stress oc at any location along the beam.WASLABBLacbyCLCDDdjLocEO. Ask

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A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape are shown in the second figure. Assume LAB-8 ft. Lac-3 ft. Lco-3 ft. Loe 3ft. Pc-2070 lb. PE-1830 lb, WAS-930 lb/ft, b₁-9 in., b₂-2 in., b3-6 ind, 2 in d₂-8 in dg-2 in. Consider the entire 17-ft length of the beam and determine: (a) the maximum tension bending stress oy at any location along the beam, and (b) the maximum compression bending stress o at any location along the beam. 3 WAS LAB B Lac b₁ C LCD D LDE E o. Ask

A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape are shown in the second figure. Assume LAB-8 ft. Lac-3 ft. Lco-3 ft. Loe 3ft. Pc-2070 lb. PE-1830 lb, WAS-930 lb/ft, b₁-9 in., b₂-2 in., b3-6 ind, 2 in d₂-8 in dg-2 in. Consider the entire 17-ft length of the beam and determine: (a) the maximum tension bending stress oy at any location along the beam, and (b) the maximum compression bending stress o at any location along the beam. 3 WAS LAB B Lac b₁ C LCD D LDE E o. Ask

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.10.13P: A large precast concrete panel for a warehouse is raised using two sets of cables at two lift lines,...

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A large precast concrete panel for a warehouse is raised using two sets of cables at two lift lines, as shown in the figure part a. Cable 1 has a length L1 = 22 Ft, cable 2 has a length L2= 10 ft, and the distance along the panel between lift points Band D is d = 14 ft (see figure part b). The total weight of the panel is W = 85 kips. Assuming the cable lift Forces F at each lift line are about equal, use the simplified model of one half of the panel in figure part b to perform your analysis for the lift position shown. Find the required cross-sectional area AC of the cable if its breaking stress is 91 ksi and a factor of safety of 4 with respect to failure is desired.
A suspender on a suspension bridge consist of a cable that passes over the main cable (see figure) and supports the bridge deck, which is Far below. The suspender is held in position by a metal tie that is prevented from sliding downward by clamps around the suspender cable. Let P represent the load in each part of the suspender cable, and let represent the angle of the suspender cable just above the tie. represent the allowable tensile stress in the metal tie. (a) Obtain a formula for the minimum required cross-sectional area of the lie. (b) Calculate the minimum area if P = 130 kN, = 75°, and allow=80 .
A seesaw weighing 3 lb/ft of length is occupied by two children, each weighing 90 lb (see figure). The center of gravity of each child is 8 ft from the fulcrum. The board is 19 ft long, 8 in. wide, and 1.5 in. thick. What is the maximum bending stress in the board?
Repeat Problem 11.2-3 assuming that R= 10 kN · m/rad and L = 2 m.
A long re Lai nine: wall is braced by wood shores set at an angle of 30° and supported by concrete thrust blocks, as shown in the first part of the figure. The shores are evenly spaced at 3 m apart. For analysis purposes, the wall and shores are idealized as shown in the second part of the figure. Note that the base of the wall and both ends of the shores are assumed to be pinned. The pressure of the soil against the wall is assumed to be triangularly distributed, and the resultant force acting on a 3-meter length of the walls is F = 190 kN. If each shore has a 150 mm X 150 mm square cross section, what is the compressive stress
Repeat Problem 11.3-9. Use two C 150 × 12.2 steel shapes and assume that E = 205 GPa and L = 6 m.
Two steel wines support a moveable overhead camera weighing W = 28 lb (see figure part a) used For close-up to viewing of field action at sporting, events. At some instant, wire I is at an angle a = 22° to the horizontal and wire 2 is at angle fi = 40°. Wires I and 2 have diameters of 30and 35 mils, respectively. (Wire diameters are often expressed in mils; one mil equals 0.001 in.) (a) Determine the tensile stresses s and s2 in the two wires. (b) If the stresses in wires 1 and 2 must be the same, what is the required diameter of wire 1 ? (c) To stabilize the camera for windy outdoor conditions, a third wire is added (see figure part b). Assume the three wires meet at a common point coordinates (0, 0. 0) above the camera at the instant shown in figure part b. Wire I is attached to a support at coordinates (75 ft, 48 ft, 70 Ft). Wire 2 is supported at (-70 ft. 55 ft, 80 Ft). Wire 3 is supported at (-10 ft. -85 Ft, 75 ft). Assume that all three wires have a diameter of 30 mils. Find the tensile stresses in all three wires
A lifeboat hangs from two ship's davits. as shown in the figure. A pin of diameter d = 0.80 in. passes through each davit and supports two pulleys. are on each side of the davit. Cables attached to the lifeboat pass over the pulleys and wind around winches that raise and lower the lifeboat. The lower parts of the cables are vertical and the upper parts make an angle a =15° with the horizontal. The allowable tensile force in each cable is 1800 lb, and the allowable shear stress in the pins is 4000 psi. If the lifeboat weighs 1500 lb, what is the maximum weight that can be carried in the lifeboat?
Repeat Problem 11.2-14 using L = 12 ft, ß = 0.25 kips/in., ßRl= 1.5ßL2, and ßR2= 2 ßR1.
Continuous cable A DB runs over a small friction less pulley al D to support beam OABC, which is part of an entrance canopy for a building (see figure}. The canopy segment has a weight W = 1700 lb that acts as a concentrated load in the middle of segment AB. (a) What is the maximum permissible value of load P at C if the allowable force in the cable is 4200 lb? (b) If P = 2300 lb, what is the required diameter of pins A, B, and D? Assume that the pins are in double shear and the allowable shear stress in the pins is 10 ksi.
The boom in the figure below (Figure 1) weighs 3000 NN and is attached to a frictionless pivot at its lower end. It is not uniform; the distance of its center of gravity from the pivot is 40%% of its length. Make a free-body diagram of the boom. The boom attaches to the building at dot A. The center of gravity of the boom is indicated by dot B. The guy wire attaches to the boom and holds the load at dot C. Find the tension in the guy wire. Find the horizontal component of the force exerted on the boom at its lower end. Find the vertical component of the force exerted on the boom at its lower end
A flanged wooden shape is used to support the loads shown on the beam. The dimensions of the shape are shown in the second figure. Assume LAB = 9 ft, LBC = 3 ft, LCD = 4 ft, LDE = 4 ft, PC = 2150 lb, PE = 2260 lb, wAB = 650 lb/ft, b1 = 11 in., b2 = 2 in., b3 = 7 in., d1 = 2 in., d2 = 5 in., d3 = 2 in. Consider the entire 20-ft length of the beam and determine:(a) the maximum tension bending stress σT at any location along the beam, and(b) the maximum compression bending stress σC at any location along the beam.