Seismic retrofit of RC frames through beam-end weakening in conjunction with FRP strengthening

Jinguang Teng, S. S. Zhang, D. H. Jing, X. F. Nie, G. M. Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

7 Citations (Scopus)

Abstract

The strong column/weak beam requirement is now widely accepted in the design of reinforced concrete (RC) frames to achieve good seismic performance. However, many existing RC frames violate this requirement as they were designed according to inadequate design codes (generally previous codes). In particular, RC frames designed according to the previous Chinese codes for seismic design are likely to violate this requirement as the contribution of a cast-in-place floor slab in tension is not included in assessing the moment capacity of the beam in negative bending. This paper proposes three promising beam weakening techniques in combination with FRP strengthening to achieve this strong column/weak beam hierarchy and presents the preliminary results of an ongoing study into the effectiveness of and design procedures for the proposed techniques.
Original languageEnglish
Title of host publicationProceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
PublisherInternational Institute for FRP in Construction (IIFC)
ISBN (Electronic)9780987593016
Publication statusPublished - 1 Jan 2013
Event4th Asia-Pacific Conference on FRP in Structures, APFIS 2013 - Melbourne, Australia
Duration: 11 Dec 201313 Dec 2013

Conference

Conference4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
Country/TerritoryAustralia
CityMelbourne
Period11/12/1313/12/13

Keywords

  • Beam weakening
  • FRP
  • RC frames
  • Seismic performance
  • Seismic retrofit

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Materials Science(all)

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