a) Assess whether the truss is statically determinate or indeterminate, stable or unstable. If unstable, propose ways of making it stable. The remainder of the question should focus on the proposed stable version of the truss structure. b) By using either the method of joints or the method of sections, analyse the truss and determine all its member forces under the application of the 100 kN vertical load at the tip (point M). Clearly specify which members are in tension and which are in compression. c) By using the method of virtual work, calculate the vertical displacement at point M. Assume a Modulus of Elasticity equal to E=200 GPa and member cross-sectional area equal to A=0.01 m2.
a) Assess whether the truss is statically determinate or indeterminate, stable or unstable. If
unstable, propose ways of making it stable. The remainder of the question should focus on
the proposed stable version of the truss structure.
b) By using either the method of joints or the method of sections, analyse the truss and
determine all its member forces under the application of the 100 kN vertical load at the tip
(point M). Clearly specify which members are in tension and which are in compression.
c) By using the method of virtual work, calculate the vertical displacement at point M. Assume
a Modulus of Elasticity equal to E=200 GPa and member cross-sectional area equal to A=0.01
m2.
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