Vibration studies on an impact loaded reinforced concrete structure

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    Abstract

    Both earthquakes and aircraft impacts induce vibrations that propagate throughout the entire building. These vibrations need to be considered in designing SSCs (Structures, Systems and Components). So far, mainly linear calculation methods have been in use in practice and thus the codes and standards consider only damping ratios for linear assessments. Induced vibrations, especially in damaged concrete structures, have not been studied extensively enough. Especially experimental data on damping properties of damaged reinforced concrete are needed. One of the main issues is the assessment and modelling of damping in such structures. Recently, within IMPACT project, a new type of test series considering vibration propagation has been initiated at VTT. The target is a U shaped reinforced concrete structure with two parallel walls connected to a floor slab. In order to get information on vibration propagation in damaged concrete at different levels of damage grades the same structure was tested three times. At each time the mass of the deformable stainless steel missile was 50 kg and the impact velocity was about 110 m/s. The test arrangement and measurements are presented in a joint paper by Vepsä et al. (2015). In this study the numerical results, accelerations, displacements, their response spectra and strains, are compared with experimental measurements. Two finite element methods, Abaqus and an in-house code, were used in computations.
    Original languageEnglish
    Title of host publicationStructural Mechanics in Reactor Technologies
    Subtitle of host publication23rd International Conference on Structural Mechanics in Reactor Technology 2015 (SMiRT 23)
    Number of pages10
    Publication statusPublished - 2015
    MoE publication typeA4 Article in a conference publication
    Event22nd International Conference on Structural Mechanics in Reactor Technology 2013, SMiRT 22 - San Francisco, United States
    Duration: 18 Aug 201323 Aug 2013
    Conference number: 23

    Conference

    Conference22nd International Conference on Structural Mechanics in Reactor Technology 2013, SMiRT 22
    Abbreviated titleSMiRT 22
    CountryUnited States
    CitySan Francisco
    Period18/08/1323/08/13

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  • Cite this

    Saarenheimo, A., Calonius, K., & Tuomala, M. (2015). Vibration studies on an impact loaded reinforced concrete structure. In Structural Mechanics in Reactor Technologies: 23rd International Conference on Structural Mechanics in Reactor Technology 2015 (SMiRT 23)