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Since the solution of a model which s meshed with beam elements or shell elements converges very fast (i.e., very accurate solution can be obtained with only a few elements), we should consider a line model or surface model whenever possible. FEA Analysis in ANSYS WorkbenchĮngineering concern in this case is the deformation and stressed in the beams because if deformation or stresses exceed the safe limit then the model become defective and the system will fail. The combined weight of the roadway and vehicles is transferred to the longitudinal stringers, then to the cross beams, and finally, with the weights of the stringers and cross beams accounted for, to the upper joints of the two plane trusses which form the vertical sides of the structure. When the members of the truss lie essentially in a single plane, the truss is called a plane truss.įor bridges and similar structures, plane trusses are commonly utilized in pairs with one truss assembly placed on each side of the structure. Structural members commonly used are I-beams, channels, angles, bars, and special shapes which are fastened together at their ends by welding, riveted connections, or large bolts or pins.
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Bridges, roof supports, derricks, and other such structures are common examples of trusses. A framework composed of members joined at their ends to form a rigid structure is called a truss.