A simple truss structure is shown in the following Figure. Point B is pin supported, and point C is roller supported. An external force F-4kN applied at joint A horizontally. What is the member force in member BC? Im O O O O 4 kN 2 kN B Don't Know 8 KN 3.46 kN 30⁰ F=4kN 30⁰7
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- 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 .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 cantilever truss in the figure is hinged at D and E. Find the force in member DC. 1000 Ib 60" 60 30 C lo' la00 16
- The truss shown below has a hinge support at point A. a horizontal roller at point B, and is subjected to two point loads (P1 and P2). If P1 = 11 kN and P2 - 81 kN, what is the force, in kN, in member AE? NOTE: Enter a positive value if the member is in Tension and a negative value if the member is in Compression. 4 m- P1 (kN) 60 4 m 4 m P2 (kN)RAX M A 0 F RAY Enter FAP: kN F₂ The figure above is a pin-joint frame with angle = 30° between members AF and AB. (Note that the diagram is not to scale). Given that the reaction forces at the support A are given by RAX = 10kN and RAY = 25kN, calculate the forces in members AB and AF, denoted by FAB and FAP respectively. Enter your answers in kilonewtons (kN) correct to 2 decimal places in the boxes below: Enter FAB KN D RDYThe cantilever truss in the figure is hinged at D and E. Find the force in member BC. 1000 Ib 60 60 30 3, lo lO00 16 1000 (b. O 668 Ib 866 Ib 886 lb 688 Ib
- Question 2 Find the forces in all the members of the truss shown in figure below. B 3 m 3 m 3m 40 kN 40 kNThe cantilever truss in the figure is hinged at D and E. Find the force in member CE. 1000 Ib 60 60 30 lo lo00 16 |000 (b. O 3475 lb O 3375 lb O 3275 Ib O 3175 IbA new art exhibit featuring mobile works is going up in the Norwalk, CA area. One art work is shown in the figure below. A 105 N uniform beam is pinned to the ground by a pivot. The beam is supported by a cable (attached 3/5 from the bottom of the beam) to allow for each of the shoes to hang freely. Each individual shoe has a weight of 7.5 N. 10 WALL FLOR (a) ( If one shoe is attached 1/7 of the way up the beam and another shoe is attached 5/8 of the way up the beam, with e, = 70.1° and e, 30.1°, what is the tension in the cable, in newtons? %3! %3D (b) What is the x-component of the force, in newtons, that the pivot exerts on the bottom of the beam? (c) O What is the y-component of the force, in newtons, that the pivot exerts on the bottom of the beam?
- Determine the force in members BC, GA, and BG of the truss shown in the figure below. Let P = 175 kN. NOTE: If your answer is a compressive force then just put a negative sign. If your answer is a tensile force then just type the answer directly. (ALSO, DON'T FORGET THE UNITS) 2P 2P 30 60V60° B 60 60° 30 3P 4m 4m 4m Solve the force in member BC. Solve the force in member GA. Solve the force in member BG.Determine the forces in all bars of the truss shown in the given figure. Indicate tension or compression. Given: X= 30 kN. BXKN 60 KN The force in member AB (FAB) is The force in member BC (FBC) is The force in member AC (FAC) is[ 6m kN. (Click to select) kN. (Click to select) KN. (Click to select)Part B As shown, a space truss is the frame for a building's awning. (Figure 2) Three ball-and-socket joints at A, B, and E support the frame. If a force of F = {120i+ 330j} N is applied at point D, what are the forces in each member? Indicate a tensile force as a positive value and a compressive force as a negative value. Express your answers numerically to three significant figures in newtons separated by commas. • View Available Hint(s) It vec ? FDA. FDc. FDB. FCA. FCB. FCE = Submit