Reinforced concrete jacketing for seismic upgrading of RC frames with poor reinforcing details in beam-column joints

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5 Scopus citations

Abstract

Simulated seismic load tests on reinforced concrete one-way interior beam-column joints with substandard reinforcing details typical of lowrise buildings constructed in Taiwan are described. These substandard reinforcing details of the beam-column joints are mainly lower concrete strength and lack of transverse reinforcement. RC jacketing offers a versatility for retrofitting those deficient buildings. The improvement in performance of the joints rehabilitated with RC jacketing, without dowel anchors into the concrete-to-concrete interface for preventing premature bond failure, is demonstrated. The experimental investigation toward the effect of the interfacial bond slip is discussed in the paper. Results showed the slip observed in newly casting concrete joint is unlikely to influence the overall seismic performance of the jacketed sub-assemblages if being strengthened to ensure the strong-column and weak-beam mode.

Original languageEnglish
Title of host publicationProceedings of the 22nd (2012) International Offshore and Polar Engineering Conference
Pages84-89
Number of pages6
StatePublished - 2012
Event22nd International Offshore and Polar Engineering Conference, ISOPE-2012 - Rhodes, Greece
Duration: 17 Jun 201222 Jun 2012

Publication series

NameProceedings of the International Offshore and Polar Engineering Conference
ISSN (Print)1098-6189
ISSN (Electronic)1555-1792

Conference

Conference22nd International Offshore and Polar Engineering Conference, ISOPE-2012
Country/TerritoryGreece
CityRhodes
Period17/06/1222/06/12

Keywords

  • Concrete interfacial slip
  • Interior beam-column joints
  • Joint shear strength
  • Reinforced concrete jacketing
  • Seismic behavior
  • Shear degradation

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