A truss structure is used to build the transmission tower shown with dimensions and loads shown below.

Assuming the structure does not deform out-of-plane, and that none of the members buckle, find the force and stress that each member named in the table below carries and the change in length of each of those members if they are composed of structural steel.

a	b	c	d	h	F1F1	θθ	F2F2	ϕϕ
1.9 m	3.4 m	2.4 m	5.2 m	9.5 m	6 kN	54 deg	6.7 kN	23 deg

Members:
(Denote tension forces, tensile stresses, and elongations with positive values; compressive forces, compressive stresses and compactions with negative values.)

Member	Cross- Sectional Area (mm2)(mm2)	Force	Stress	Change in Length
BCBC	260
BPBP	200
PQPQ	260
PCPC	200
CDCD	260
DPDP	200
NPNP	260

Expert Solution

Amanda K answered 2 years ago

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