Question

Consider the truss shown in (Figure 1). Follow the sign convention. Draw the influence line for the force in member CJ. Indicate the values of the influence line at each joint along the bottom cord of the truss and indicate the points where the influence line passes the z-axis. Click on add vertical line off to add discontinuity lines. Then click on add segment button to add functions between the lines. Note 1 - Draw discontinuity lines at each joint along the bottom cord and at the points where the influence line passes the x-axis. Note 2 - Be sure to indicate the correct types of the functions between the lines, e.g. in your answer the type of a function is linear increasing slope for the function that actually has linear decreasing slope, the answer will be graded as incorrect. Use the button change segment if necessary. Note 3 - Make sure you place only one vertical line at places that require a vertical line. If you inadvertently place 2 vertical lines at the same place, it will appear correct visually because the lines overlap, but the system will mark it wrong. Figure < 1 of 1 + add vertical line off delete U reset ? help + add segment J L K I H 8 ft MANİ MANA. ARA E -6 ft——6 ft- -6 ft—6 ft- -6 ft- .—6 ft-- % F6ft - 6ft- 7 66 -6ft -6ft 6 ft- -6 ft- **

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