Numerical Performance Of A New Algorithm For Performing Modal Analysis Of Full-scale Reinforced Concrete Structures That Are Dιscrεtized With The Hymod Approach

Dewald Z. Gravett, Christos Mourlas, George Markou, Manolis Papadrakakis

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Nonlinear dynamic modeling of full-scale mid- and high-rise reinforced concrete structures through the use of the 3D detailed approach that foresees the use of hexahedral elements with embedded rebars is not yet feasible due to numerous reasons. The two main numerical problems that do not allow for this type of analysis to be performed, are the numerical instabilities that immerse when the opening and closing of cracks initiates during the dynamic analysis and the excessive computational demand that is required even when dealing with small numerical models. This work will present the computational response of a newly developed algorithm that is used herein to perform modal analysis of large-scale models. The under study algorithmic development is a part of a project that aims towards alleviating the prementioned numerical constraints in regard to performing nonlinear dynamic analysis of full-scale reinforced concrete structures. An extensive numerical investigation is presented that foresees the performance of modal analysis on different full-scale reinforced concrete structures that are discretized with the Hybrid Model (HYMOD) approach. Based on the numerical investigation findings, the developed algorithm was found to be computationally efficient offering a robust numerical tool for performing modal analysis of large-scale numerical models.
Original languageEnglish
Title of host publicationCOMPDYN 2019 Proceedings
EditorsM. Papadrakakis, M. Fragiadakis
PublisherECCOMAS Proceedia
Pages4035-4052
Number of pages18
Volume3
ISBN (Electronic)9786188284456
DOIs
Publication statusPublished - Jun 2019
EventCOMPDYN 2019: 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering - Creta Maris' Conference Center, Hersonissos, Greece
Duration: 24 Jun 201926 Jun 2019
https://2019.compdyn.org/

Publication series

Name
ISSN (Electronic)2623-3347

Conference

ConferenceCOMPDYN 2019
Country/TerritoryGreece
CityHersonissos
Period24/06/1926/06/19
Internet address

Keywords

  • : Eigenvalue problem
  • hybrid modeling
  • large-scale numerical models
  • reinforced concrete
  • finite element method
  • 3D detailed modeling

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