Seismic and energy performance evaluation of large-scale curtain walls subjected to displacement control fasteners

Heonseok Lee, Myunghwan Oh, Junwon Seo, Woosuk Kim

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Glass façade curtain walls in buildings is the façade system of choice in modern architecture of mid-to high-rise buildings. This study investigates the seismic and thermal insulation performance of curtain wall systems through structural analysis using the finite element method (FEM) and LBNL Window&Therm insulation analysis. The aim was to optimize the capability of the curtain wall module system and the fastener element technology to respond to displacement and vibration caused by dynamic seismic waves. Using the structural analysis of the optimization process, a curtain wall system capable of withstanding earthquake waves of 0.4 Hz, displacement of ±150 mm or more, and capable of responding to three-axis (X, Y, and Z-axis) dynamic earthquakes, was fabricated. Then, a curtain wall system that satisfies not only the evaluation of seismic performance, but also the desired airtightness, watertightness, wind pressure, and insulation, which are essential requirements for field applications, was verified through an experiment. Based on this study, it is expected that a curtain wall system capable of responding to three-axis dynamic seismic waves can be applied to mid-and high-rise buildings to prevent secondary damage in the event of an earthquake.

Original languageEnglish
Article number6725
JournalApplied Sciences (Switzerland)
Volume11
Issue number15
DOIs
StatePublished - Aug 1 2021

Bibliographical note

Funding Information:
Acknowledgments: The authors are grateful for the supported by the Ministry of Land, Infrastructure and Transport of the Korean government grant [code# 21CTAP-C153174-03].

Funding Information:
Funding: This research was supported by a grant (21CTAP-C153174-03) from the Infrastructure and Transportation Technology Promotion Research Program funded by the Ministry of Land, Infrastructure, and Transport of the Korean government.

Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.

Keywords

  • Earthquake
  • Energy performance
  • Inter-story separation
  • Large-scale glass curtain wall
  • Non-structural elements
  • Three-axis mobile fastener

ASJC Scopus subject areas

  • Materials Science (all)
  • Instrumentation
  • Engineering (all)
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes

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