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

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 proceeding › Conference article published in proceeding or book › Academic research › peer-review

8 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 language	English
Title of host publication	Proceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
Publisher	International Institute for FRP in Construction (IIFC)
ISBN (Electronic)	9780987593016
Publication status	Published - 1 Jan 2013
Event	4th Asia-Pacific Conference on FRP in Structures, APFIS 2013 - Melbourne, Australia Duration: 11 Dec 2013 → 13 Dec 2013

Conference

Conference	4th Asia-Pacific Conference on FRP in Structures, APFIS 2013
Country/Territory	Australia
City	Melbourne
Period	11/12/13 → 13/12/13

Keywords

Beam weakening
FRP
RC frames
Seismic performance
Seismic retrofit

ASJC Scopus subject areas

Civil and Structural Engineering
General Materials Science

Cite this

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title = "Seismic retrofit of RC frames through beam-end weakening in conjunction with FRP strengthening",

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.",

keywords = "Beam weakening, FRP, RC frames, Seismic performance, Seismic retrofit",

author = "Jinguang Teng and Zhang, {S. S.} and Jing, {D. H.} and Nie, {X. F.} and Chen, {G. M.}",

year = "2013",

month = jan,

day = "1",

language = "English",

booktitle = "Proceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013",

publisher = "International Institute for FRP in Construction (IIFC)",

note = "4th Asia-Pacific Conference on FRP in Structures, APFIS 2013 ; Conference date: 11-12-2013 Through 13-12-2013",

}

Teng, J, Zhang, SS, Jing, DH, Nie, XF & Chen, GM 2013, Seismic retrofit of RC frames through beam-end weakening in conjunction with FRP strengthening. in Proceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013. International Institute for FRP in Construction (IIFC), 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013, Melbourne, Australia, 11/12/13.

Seismic retrofit of RC frames through beam-end weakening in conjunction with FRP strengthening. / Teng, Jinguang; Zhang, S. S.; Jing, D. H. et al.
Proceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013. International Institute for FRP in Construction (IIFC), 2013.

Research output: Chapter in book / Conference proceeding › Conference article published in proceeding or book › Academic research › peer-review

TY - GEN

T1 - Seismic retrofit of RC frames through beam-end weakening in conjunction with FRP strengthening

AU - Teng, Jinguang

AU - Zhang, S. S.

AU - Jing, D. H.

AU - Nie, X. F.

AU - Chen, G. M.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - 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.

AB - 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.

KW - Beam weakening

KW - FRP

KW - RC frames

KW - Seismic performance

KW - Seismic retrofit

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M3 - Conference article published in proceeding or book

BT - Proceedings of the 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013

PB - International Institute for FRP in Construction (IIFC)

T2 - 4th Asia-Pacific Conference on FRP in Structures, APFIS 2013

Y2 - 11 December 2013 through 13 December 2013

ER -

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

Abstract

Conference

Keywords

ASJC Scopus subject areas

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