Abstract
From an analysis aspect, determining the degree of static redundancy of a structure is a prerequisite of the force method. As such, this chapter can be considered as a first step in the force method. For the displacement method we do not need to know the degree of redundancy. Redundancy also tells us how far the structure is removed from being statically determinate, a condition which is notoriously unsafe. As such, the redundancy is also important from a design viewpoint irrespective of the method of analysis. It tells us something regarding the behavior of the structure. Recognizing the redundancy, that is, safety, stiffness, prestressing issues and the like, or designing for determinacy in order to prevent locked stresses, will be discussed at the end of the chapter.
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Notes
- 1.
A Vierendeel beam is often used in place of a similar truss-beam. The shear force which is taken in trusses by the diagonal braces is here transferred through shear in the flanges.
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© 2016 Springer International Publishing Switzerland
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Fuchs, M.B. (2016). Redundancy. In: Structures and Their Analysis. Springer, Cham. https://doi.org/10.1007/978-3-319-31081-7_11
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DOI: https://doi.org/10.1007/978-3-319-31081-7_11
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Online ISBN: 978-3-319-31081-7
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