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Buildings 2019, 9(1), 13; https://doi.org/10.3390/buildings9010013

Vibration Analysis and Dynamic Characterization of Structural Glass Elements with Different Restraints Based on Operational Modal Analysis

Department of Engineering and Architecture (DIA), University of Trieste, 34127 Trieste, Italy
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Received: 12 December 2018 / Revised: 28 December 2018 / Accepted: 29 December 2018 / Published: 5 January 2019
(This article belongs to the Special Issue Non-destructive Testing for Building Evaluation)
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Abstract

Given a series of intrinsic features of structural glass systems (i.e., material properties, type of restraints, operational conditions, etc.), special care should be spent at the design stage, to ensure appropriate fail-safe requirements, but also in the service life of these innovative building components and assemblies. In this paper, the dynamic characterization of simple monolithic glass elements is presented, based on non-destructive laboratory experiments and Operational Modal Analysis (OMA) techniques, including Finite Element (FE) numerical simulations, classical analytical models, and video-tracking approaches. It is shown, in particular, how the actual restraint condition (i.e., flexibility of supports, with respect to ideal boundaries) can affect the vibration parameters of a given glass member (frequency and damping capacity). This turns out in possible variations of its overall structural performance, including stress-strain-related effects, hence suggesting the need for even further dedicated studies and methods for the reliable analysis and design of structural glass assemblies and complex systems under dynamic loads. View Full-Text
Keywords: structural glass; dynamic performance; dynamic characterization; boundary conditions; Operational Modal Analysis (OMA); Finite Element (FE) numerical models structural glass; dynamic performance; dynamic characterization; boundary conditions; Operational Modal Analysis (OMA); Finite Element (FE) numerical models
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Bedon, C.; Fasan, M.; Amadio, C. Vibration Analysis and Dynamic Characterization of Structural Glass Elements with Different Restraints Based on Operational Modal Analysis. Buildings 2019, 9, 13.

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