ELICA Truss Analysis report (week 5)

ELICA Truss Analysis report (week 5) - forces at all. The...

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ELICA Truss Analysis Alex Fidalgo Stevens Institute of Technology 10/6/10 Design Laboratory III E-231 Section J Group 2 I pledge my honor that I have abided by the Stevens Honor System._______________________ Objective: The purpose of this exercise was to practice using ELICA, the truss analysis software and see how loads are spread throughout a truss. Procedure: 1. I used ELICA to design the truss provided on WebCT 2. I applied the 175 lb load and obtained the corresponding loads in each member of the truss. Results: ELICA showed how a load is spread throughout a truss by using green marks for members in tension and red marks for members in compression. Also, the corresponding
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magnitudes followed the convention of negative for members in compression and positive for members in tension. Analysis: ELICA showed that the members located on the left and right sides of the truss were in compression, the bottom members of the truss were in tension, and the center members had no
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Unformatted text preview: forces at all. The following table shows the forces in each member and their ratio to the total force. Member (Joint #1-Joint #2 Force (lbs) Ratio (Member Force/ Total Force) Total: 175 1 --2 -124-0.709 2--3-124-0.709 3--4-124-0.709 4--5-124-0.709 2--6 2--4 4--6 1--6 87.5 0.5 5--6 87.5 0.5 If the maximum load any member could support were 1450 lbs, the maximum load that could be applied to the truss would be 2046.27 lbs. This was found to be correct because with this load applied to the truss, the members on the left and right side of the truss experience a load of 1450 lbs. The calculation performed was a proportion of the 124 lb load on the member when the truss was loaded to 175 lbs to the 1450 lb load on the member when the load was 2046.37 lbs. 124/175 = 1450/ Max Load Max Load = 2046.37 Remarks: ELICA is a crucial tool in truss analysis, as seen in this lab....
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ELICA Truss Analysis report (week 5) - forces at all. The...

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