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Optimization of irregular structures with passive energy dissipation system: A case study of single column elevated station

  • L. D. Zhuang*
  • , X. Nie
  • , L. Y. Xu
  • , J. G. Nie
  • *Corresponding author for this work
  • Tsinghua University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Previous studies mainly focus on the seismic performance of structures equipped with various types of passive energy dissipation devices (PEDDs), such as viscous dampers and metallic dampers. A challenging issue in this field is the optimization of the design of these structures with PEDDs, including the design of primary members, the distribution of PEDDs and the determination of characteristic parameters of PEDDs. Despite that several optimization techniques are proposed to improve the seismic performance of structures and protect primary members; these techniques are only applicable to regular structures. In this paper, an optimization process for an irregular structure with PEDDs is implemented as a case study, the investigated structure is a typical composite single column elevated station which is irregular both in plane and in elevation. Multiple indexes representing the seismic performance of structures are considered and nonlinear time history analysis is conducted to obtain these index. Finally, the effectiveness of the proposed optimization process is validated and design advices for the investigated structure are given.

Original languageEnglish
Title of host publicationProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018
EditorsSiu Lai Chan, Tak-Ming Chan, Songye Zhu
PublisherHong Kong Institution of Steel Construction
ISBN (Electronic)9889914093, 9789889914097
DOIs
StatePublished - 2020
Externally publishedYes
Event9th International Conference on Advances in Steel Structures, ICASS 2018 - Hong Kong, China
Duration: 5 Dec 20187 Dec 2018

Publication series

NameProceedings of the 9th International Conference on Advances in Steel Structures, ICASS 2018

Conference

Conference9th International Conference on Advances in Steel Structures, ICASS 2018
Country/TerritoryChina
CityHong Kong
Period5/12/187/12/18

Keywords

  • Irregular structure
  • Optimization of energy dissipation system
  • Passive energy dissipation devices
  • Seismic performance
  • Single column elevated station
  • Time history analysis

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