Year 2022

• Vibration-Based Investigation of a Historic Bell Tower to Understand the Occurrence of Damage

  Publication

  • A. Tomaszewska
  • M. Drozdowska
  • C. K. Szymczak (formerly: C. Szymczak)

  - International Journal of Architectural Heritage - Year 2022

  ABSTRACT The paper presents a survey of the historic Arch-cathedral bell tower in Vilnius induced by the appearance of cracks in the structure after a new bell system installation. An attempt is undertaken to identify the reason for the crack occurrence and to check a possible crack influence on global structural behaviour. The research is based on dynamic measurements made in the tower during ambient vibrations and during vibrations...

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Year 2020

• Material Parameters Identification of Historic Lighthouse Based on Operational Modal Analysis

  Publication

  • A. Tomaszewska
  • M. Drozdowska
  • M. Szafrański

  - Materials - Year 2020

  In the present paper, the identification of the material parameters of a masonry lighthouse is discussed. A fully non-invasive method was selected, in which the material properties were determined via numerical model validation applied to the first pair of natural frequencies and their related mode shapes, determined experimentally. The exact structural model was built by means of the finite element method. To obtain experimental...

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