Analyzing the Effects of Shear Deformations on the Structural System Identification
DOI:
https://doi.org/10.5281/zenodo.14436594Keywords:
Structural system identification, Structural analysis, Stiffness matrices method, Shear effects, Constraint observability methodAbstract
Traditional structural system identification techniques often rely on redundant measurement sets due to the linearity of their governing equations, a requirement that becomes problematic when data availability is limited. To mitigate these constraints, more adaptable identification methods have recently been introduced. However, similar to many existing approaches, they are typically based on the Euler–Bernoulli beam theory, which neglects shear deformation effects. While this assumption may be acceptable for slender members, it can lead to significant inaccuracies in elements such as deep beams, where shear contributions strongly influence mechanical properties. This study addresses this limitation by integrating shear deformation into a structural system identification framework. Through a comprehensive parametric analysis, the impact of shear deformation on the structural response across members with varying slenderness ratios is evaluated, offering improved accuracy and reliability for system identification in practical engineering applications.
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