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Foundation impedance function from physical model tests by two-way horizontal loading

Jafarzadeh, F ; Sharif University of Technology | 2023

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  1. Type of Document: Article
  2. DOI: 10.1201/9781003299127-261
  3. Publisher: CRC Press , 2023
  4. Abstract:
  5. The dynamic impedance function is presented for massless rigid foundations, which is possible to obtain the dynamic response of foundations for different frequencies. This study investigates the dynamic impedance functions using physical model tests on sandy soil subjected to two-way horizontal harmonic loading. The tests were carried out inside a steel container which was filled with Babolsar sand. A 10 cm thickness sawdust was employed between the container and sand to simulate infinite half-space. Also, concrete slabs of 15 cm thickness were applied to simulate the bedrock beneath the sandy layer. The selected foundations were square and circular and investigated to determine the effects of foundation shape and embedment ratio to impedance function. The results show that dynamic stiffness and damping coefficient increase with increasing embedment ratio. Also, the dynamic response of square and circular foundations is different due to wave propagation, which depends on foundation geometry. © 2023 selection and editorial matter, Askar Zhussupbekov, Assel Sarsembayeva & Victor N. Kaliakin; individual chapters, the contributors
  6. Keywords:
  8. Source: Smart Geotechnics for Smart Societies ; 2023 , Pages 1747-1753 ; 978-100099253-3 (ISBN); 978-100329912-7 (ISBN)
  9. URL: https://www.taylorfrancis.com/chapters/oa-edit/10.1201/9781003299127-261/foundation-impedance-function-physical-model-tests-two-way-horizontal-loading-fardin-jafarzadeh-jafar-maleki