Trusses are defined as structures assembled with longitudinal members connected at their ends by frictionless pins. Furthermore, it is assumed that loads are applied only at connecting joints between members of the truss; thus the self-weight, when considered in the analysis, is simply allocated to the joints at the end of the member. Under these assumptions, the elements of the truss are two-force members and the problem is reduced to the determination of the axial forces (tension or compression) in the members of the truss.
KeywordsAxial Force Global Coordinate System Element Stiffness Matrix Main Menu Joint Displacement
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