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    Wyświetlanie 1-5 z 5
    Tytuł:
    Accuracy assessment of linear elasticity solution for interaction of cylindrical tank with subsoil
    Autorzy:
    Lewiński, Paweł Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2090694.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RC tank
    cylindrical tank
    soil-structure interaction
    theory of elasticity
    Winkler model
    zbiornik cylindryczny
    zbiornik żelbetowy
    interakcja gleba-struktura
    teoria sprężystości
    model Winklera
    Opis:
    The subject of this paper is an assessment of the accuracy of a solution based on the linear theory of elasticity describing the interaction of a cylindrical reinforced concrete tank with the subsoil. The subsoil was modelled in the form of an elastic half-space and Winkler springs. The behaviour of the shell structure of the RC cylindrical tank, and particularly of the ground slab interacting with the subsoil, depends largely on the distribution of the reactions on the foundation surface. An analysis of this structure with the shell fixed in a circular ground slab was carried out taking into consideration the elastic half-space model using the Gorbunov-Posadov approach and, for comparison, the two-parameter Winkler model. Although the results for both subsoil models proved to be divergent, the conclusions that follow the accuracy assessment of a solution based on the theory of elasticity are fairly important for engineering practice.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; e136039, 1--7
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Accuracy assessment of linear elasticity solution for interaction of cylindrical tank with subsoil
    Autorzy:
    Lewiński, Paweł Marek
    Powiązania:
    https://bibliotekanauki.pl/articles/2173556.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    RC tank
    cylindrical tank
    soil-structure interaction
    theory of elasticity
    Winkler model
    zbiornik cylindryczny
    zbiornik żelbetowy
    interakcja gleba-struktura
    teoria sprężystości
    model Winklera
    Opis:
    The subject of this paper is an assessment of the accuracy of a solution based on the linear theory of elasticity describing the interaction of a cylindrical reinforced concrete tank with the subsoil. The subsoil was modelled in the form of an elastic half-space and Winkler springs. The behaviour of the shell structure of the RC cylindrical tank, and particularly of the ground slab interacting with the subsoil, depends largely on the distribution of the reactions on the foundation surface. An analysis of this structure with the shell fixed in a circular ground slab was carried out taking into consideration the elastic half-space model using the Gorbunov-Posadov approach and, for comparison, the two-parameter Winkler model. Although the results for both subsoil models proved to be divergent, the conclusions that follow the accuracy assessment of a solution based on the theory of elasticity are fairly important for engineering practice.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 1; art. no. e136039
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Calculating the Dynamic Impedances of Foundations and their Effect on the Seismic Response of Structures: Analytical and Numerical Study
    Autorzy:
    Boulkhiout, Radhwane
    Messast, Salah
    Powiązania:
    https://bibliotekanauki.pl/articles/2051714.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    soil-structure interaction
    finite element method
    substructure method
    impedance functions
    CONAN
    equivalent static method
    soil densification
    interakcja gleba-struktura
    metoda elementów skończonych
    równoważna metoda statyczna
    zagęszczanie gleby
    Opis:
    This study evaluates the movement of a frame built on soft soil under seismic excitation taking into account soil-structure interaction. First, the study was evaluated using the finite element method, then, by using a substructure method which modelled the soil using springs and dampers in a linear and nonlinear study. Rheological models were determined using impedance functions, calculated using a numerical program CONAN. These dynamic impedances are shown in the displacement vector of a three-degrees-of-freedom frame, which was calculated on the basis of lateral forces distributed over the structure height using the equivalent static method. In this regard, two different calculation norms were chosen; RPA2003 and UBC97. Finally, a parametric study was carried out, based on the effects of soil densification and the foundation geometry on the response of the RC frame.
    Źródło:
    Civil and Environmental Engineering Reports; 2021, 31, 2; 178-217
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Convolutional neural networks in the SSI analysis for mine-induced vibrations
    Autorzy:
    Zając, Maciej
    Kuźniar, Krystyna
    Powiązania:
    https://bibliotekanauki.pl/articles/38707462.pdf
    Data publikacji:
    2024
    Wydawca:
    Instytut Podstawowych Problemów Techniki PAN
    Tematy:
    deep learning
    convolutional neural network
    shallow neural network
    small data set
    soil-structure interaction
    mine-induced vibrations
    głęboka nauka
    splotowa sieć neuronowa
    płytka sieć neuronowa
    mały zestaw danych
    interakcja gleba-struktura
    wibracje wywołane minami
    Opis:
    Deep neural networks (DNNs) have recently become one of the most often used softcomputational tools for numerical analysis. The huge success of DNNs in the field of imageprocessing is associated with the use of convolutional neural networks (CNNs). CNNs,thanks to their characteristic structure, allow for the effective extraction of multi-layerfeatures. In this paper, the application of CNNs to one of the important soil-structureinteraction (SSI) problems, i.e., the analysis of vibrations transmission from the free-field next to a building to the building foundation, is presented in the case of mine-induced vibrations. To achieve this, the dataset from in-situ experimental measurements,containing 1D ground acceleration records, was converted into 2D spectrogram imagesusing either Fourier transform or continuous wavelet transform. Next, these images wereused as input for a pre-trained CNN. The output is a ratio of maximal vibration valuesrecorded simultaneously on the building foundation and on the ground. Therefore, the lastlayer of the CNN had to be changed from a classification to a regression one. The obtainedresults indicate the suitability of CNN for the analyzed problem.
    Źródło:
    Computer Assisted Methods in Engineering and Science; 2024, 31, 1; 3-28
    2299-3649
    Pojawia się w:
    Computer Assisted Methods in Engineering and Science
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Modulus of Laterally Loaded Pile in Cohesionless Slope Crest with Varying Condition
    Autorzy:
    Sivapriya, Vijayasimhan
    Ganesh Kumar, Shanmugam
    Powiązania:
    https://bibliotekanauki.pl/articles/27314814.pdf
    Data publikacji:
    2022
    Wydawca:
    Uniwersytet Zielonogórski. Oficyna Wydawnicza
    Tematy:
    pile foundation
    soil-structure interaction
    lateral load
    vertical load
    fundament palowy
    interakcja gleba-struktura
    obciążenie boczne
    obciążenie pionowe
    Opis:
    Soil - structure interaction behaviour of pile foundation is complex for heavier structures which suffer large lateral load due to wind, wave action etc., in addition to the large vertical and oblique load. The parameters involved in determining the lateral capacity of the foundation are its structural geometry, soil properties and ground condition. The behaviour is different for horizontal ground compared to the sloping ground; it is even different under loading and unloading conditions. In this study, the modulus of single pile is studied under various lengths, diameters, slope angles and loading directions. An equation is generated is developed to obtain the modulus with varying length and diameter.
    Źródło:
    Civil and Environmental Engineering Reports; 2022, 32, 3; 133--142
    2080-5187
    2450-8594
    Pojawia się w:
    Civil and Environmental Engineering Reports
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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