Prospects of seismic upgrading a weak r.c. school building using light gauge steel walls

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Significant number of reinforced concrete building frames executed in the '50's-60's in Europe need seismic upgrading. At those times understanding of earthquake effects was insufficient and quality control on construction sites lacking. This combination resulted in buildings framed in reinforced concrete with bad quality materials and inadequate reinforcement. The low-medium rise buildings often house public functions today. In this paper, we analyze the potentials and limitations of using light prefabricated steel wall systems (LGSW) to upgrade frames to higher seismic standard. Results show that r.c. frames with virtually no seismic resistance (PGA~0.05·g) can be upgraded to resist intermediate earthquakes, possibly up to PGA~0.2·g. The LGSW's have remarkable flexibility to adapt to the refurbishment requirements in terms of stiffness and strength, and also provide adequate ductility.
Original languageEnglish
Pages (from-to)179-184
JournalApplied Mechanics and Materials
Volume777
DOIs
Publication statusPublished - 2015
MoE publication typeA1 Journal article-refereed

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School buildings
Gages
Reinforced concrete
Earthquake effects
Concrete buildings
Steel
Quality control
Ductility
Earthquakes
Reinforcement
Stiffness

Keywords

  • weak r.c. buildings
  • earthquake resistance
  • refurbishment
  • light-gauge steel shear walls (LGSW)
  • pushover method

Cite this

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title = "Prospects of seismic upgrading a weak r.c. school building using light gauge steel walls",
abstract = "Significant number of reinforced concrete building frames executed in the '50's-60's in Europe need seismic upgrading. At those times understanding of earthquake effects was insufficient and quality control on construction sites lacking. This combination resulted in buildings framed in reinforced concrete with bad quality materials and inadequate reinforcement. The low-medium rise buildings often house public functions today. In this paper, we analyze the potentials and limitations of using light prefabricated steel wall systems (LGSW) to upgrade frames to higher seismic standard. Results show that r.c. frames with virtually no seismic resistance (PGA~0.05·g) can be upgraded to resist intermediate earthquakes, possibly up to PGA~0.2·g. The LGSW's have remarkable flexibility to adapt to the refurbishment requirements in terms of stiffness and strength, and also provide adequate ductility.",
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Prospects of seismic upgrading a weak r.c. school building using light gauge steel walls. / Fülöp, Ludovic.

In: Applied Mechanics and Materials, Vol. 777, 2015, p. 179-184.

Research output: Contribution to journalArticleScientificpeer-review

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