Damage localisation and severity evaluation of a beam-like timber structure based on modal strain energy and flexibility approaches
نویسندگان
چکیده
منابع مشابه
EFFICIENCY EVALUATION OF PROPOSED OBJECTIVE FUNCTIONS IN STRUCTURAL DAMAGE DETECTION BASED ON MODAL STRAIN ENERGY AND FLEXIBILITY APPROACHES
Civil infrastructures such as bridges and buildings are prone to damage as a result of natural disasters. To understand damages induced by these events, the structure needs to be monitored. The field of engineering focusing on the process of evaluating the location and the intensity of the damage to the structure is called Structural Health Monitoring (SHM). Early damage prognosis in structures...
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In this paper, a computationally simple approach for damage localization and quantification in beam-like structures is proposed. This method is based on using modal flexibility curvature (MFC) and particle swarm optimization (PSO) algorithm. Analytical studies in the literature have shown that changes in the modal flexibility curvature can be considered as a sensitive and suitable criterion for...
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The research described in this paper focuses on the application of modal strain techniques on a multi-girder bridge superstructure with the objectives of identifying the presence of damage and detecting false damage diagnosis for such structures. The case study is a one-third scale model of a slab-on-girder composite bridge superstructure, comprised of a steel-free concrete deck with FRP rebars...
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A structural damage detection method based on modal strain energy change (MSEC) is applied to a 3D steel frame structure tested in the laboratory. Very limited measurement is available to be expanded to the full dimension of the FEM of the test structure. Both numerical and experimental studies are performed in this study, and the result shows that the damage locations are successfully identifi...
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The subject of structural health monitoring and damage identification of structures at the earliest possible stage has been a noteworthy topic for researchers in the last years. Modal strain energy (MSE) based index is one of the efficient methods which are commonly used for detecting damage in structures. It is also more effective and economical to employ some methods for reducing the degrees ...
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ژورنال
عنوان ژورنال: Journal of Building Appraisal
سال: 2007
ISSN: 1744-9545
DOI: 10.1057/palgrave.jba.2950059