Honors College Thesis

 

Improving Braced Frame Modeling Application Public Deposited

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https://ir.library.oregonstate.edu/concern/honors_college_theses/z890s1492

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  • This work analyzes the numerical curvature of buckling braces. An existing brace modeling learning tool, which in its current state allows users to change the inputs within a simulated model of a braced element, was modified to display the curvature diagram. The curvature diagram was verified through comparison to existing theories on elastic curvature. Numerical results from the tool were compared to the results from experiments. Parametric studies were conducted using the numerical modeling inputs available within the learning tool. The dependence of curvature on modeling inputs can be rationally explained using the assumptions for force-based and displacement-based elements. The addition of curvature to the existing learning tool will aid users in visualizing how numerical model inputs, including element types, number of sub-elements and integration points, distribution of sub-elements, and strain hardening, can affect the numerical results, such as curvature, compared to experimental values.
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