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That is what I thought as well. But then if you look at it this way:dav2008 said:
Truss analysis is a method of calculating the internal forces and displacements of a truss structure under different loading conditions. It involves using equations and principles of statics to determine the stresses, strains, and deformations in each member of the truss.
Truss analysis is important because it allows engineers to design safe and efficient truss structures for a variety of applications. It ensures that the truss can support the expected loads and does not fail under normal operating conditions.
The three main types of truss analysis methods are the method of joints, method of sections, and graphical method. The method of joints involves analyzing the forces at each joint of the truss. The method of sections involves cutting the truss into sections and analyzing the forces in each section. The graphical method uses a graphical representation of the truss to calculate the internal forces.
There are several assumptions made in truss analysis, including the truss being made of rigid and weightless members, all joints are frictionless and hinged, and all loads are applied only at the joints. Additionally, truss analysis assumes that the truss is loaded within its elastic limit and that the materials used have a constant modulus of elasticity.
Yes, there are some limitations to truss analysis. It does not take into account the bending and torsional effects on the truss members, which may be significant in some cases. Truss analysis also assumes that all external loads are applied only at the joints, which may not always be the case. Additionally, truss analysis is not suitable for analyzing non-linear or dynamic systems.
