1.5 m E D 000 000
Refer to the truss structure shown above for the following questions. Let P = 5kN.
A. What are the support reactions?
B. Which members are zero force members?
C. Determine the force in members BC, CF, and EF and indicate if the members are in tension or compression.
Calculate external determinacy of the truss:
external determinacy of the truss is zero hence support reaction can be calculating by equilibrium equations.
Calculate support reaction at support A and B:
The negative sign indicates that the direction of the reaction at support A is opposite to the sign that we assumed.
Calculate member force:
Consider joint A:
Similarly calculate the member forces in all the member:
Consider joint B:
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