Welcome to Three Degrees of Indeterminacy!
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Now you might be wondering what three degrees of Indeterminacy are, or you might want a brief refresher. The indeterminacy of a structure or beam depends on how many redundant supports hold up the member. A determinant structure has the exact number of supports needed to hold the structure in place. The problem, however, is that if one support becomes damaged or is unable to support the load, the entire structure fails. To prevent this, redundant supports are built into the structure. The redundancy means that if one support becomes unusable, the entire structure will not fail. The redundant supports increase the degrees of indeterminacy of the structure and make analysis a bit more complicated – simple statics can no longer be used. Structures with one or more degrees of indeterminacy can still be solved through a variety of methods. Some methods are more relevant in some cases.
This blog is called Three Degrees of Indeterminacy because just like there is more than one way to solve an indeterminacy structure, this blog will cover a variety of aspects that are related to construction and civil engineering.