Seismic strengthening of rigid steel frame with CFRP

T. Tafsirojjaman; S. Fawzia; D. Thambiratnam; Xiao Lin Zhao

doi:10.1016/j.acme.2018.08.007

Seismic strengthening of rigid steel frame with CFRP

T. Tafsirojjaman, S. Fawzia, D. Thambiratnam, Xiao Lin Zhao

Research output: Journal article publication › Journal article › Academic research › peer-review

31 Citations (Scopus)

Abstract

Steel frames are a very popular choice in building construction and are used extensively in high seismic risk regions across the world. These existing and future constructed steel frames may need to undergo seismic strengthening to mitigate the high collapse risk during possible earthquakes in the future. In this study a finite element (FE) model was developed, analysed and the results compared with the present self-performed experimental study using shake table tests of steel frames strengthened with externally bonded carbon fibre reinforced polymers (CFRP) composites to validate the modelling techniques. The validated modelling technique are then used for a comprehensive parametric study on the effects of frequency of excitation, maximum acceleration, modulus of CFRP, thickness of CFRP, number of CFRP layers and adhesive type on the seismic response of the frame structure. The results indicate that externally bonded CFRP strengthening is very effective for seismic strengthening of steel frames. The CFRP strengthening technique reduced the lateral deflection by improving the stiffness and energy absorption capacity of the steel frames.

Original language	English
Pages (from-to)	334-347
Number of pages	14
Journal	Archives of Civil and Mechanical Engineering
Volume	19
Issue number	2
DOIs	https://doi.org/10.1016/j.acme.2018.08.007
Publication status	Published - Mar 2019
Externally published	Yes

Keywords

CFRP
Finite element analysis
Seismic strengthening
Shake table test
Steel frame

ASJC Scopus subject areas

Civil and Structural Engineering
Mechanical Engineering

More information

10.1016/j.acme.2018.08.007

Cite this

@article{67d0c87b914e48429d624aee0abb7882,

title = "Seismic strengthening of rigid steel frame with CFRP",

abstract = "Steel frames are a very popular choice in building construction and are used extensively in high seismic risk regions across the world. These existing and future constructed steel frames may need to undergo seismic strengthening to mitigate the high collapse risk during possible earthquakes in the future. In this study a finite element (FE) model was developed, analysed and the results compared with the present self-performed experimental study using shake table tests of steel frames strengthened with externally bonded carbon fibre reinforced polymers (CFRP) composites to validate the modelling techniques. The validated modelling technique are then used for a comprehensive parametric study on the effects of frequency of excitation, maximum acceleration, modulus of CFRP, thickness of CFRP, number of CFRP layers and adhesive type on the seismic response of the frame structure. The results indicate that externally bonded CFRP strengthening is very effective for seismic strengthening of steel frames. The CFRP strengthening technique reduced the lateral deflection by improving the stiffness and energy absorption capacity of the steel frames.",

keywords = "CFRP, Finite element analysis, Seismic strengthening, Shake table test, Steel frame",

author = "T. Tafsirojjaman and S. Fawzia and D. Thambiratnam and Zhao, {Xiao Lin}",

note = "Funding Information: The authors wish to thank the technical staff, Mr Frank De Bruyne, Mr Barry Hume and Mr Glenn Atlee for their assistance in conducting the experimental study reported in this research at the Banyo Pilot Plant Precinct of Queensland University of Technology (QUT). The authors also wish to thank Mr Mark Hayne, Technologist of Design and Manufacturing Centre of QUT for his assistance in specimen preparation. The authors also wish to thank Queensland University of Technology (QUT) for the financial support for the experimental work reported in this study. Publisher Copyright: {\textcopyright} 2018 Politechnika Wroc{\l}awska",

year = "2019",

month = mar,

doi = "10.1016/j.acme.2018.08.007",

language = "English",

volume = "19",

pages = "334--347",

journal = "Archives of Civil and Mechanical Engineering",

issn = "1644-9665",

publisher = "Springer Science and Business Media Deutschland GmbH",

number = "2",

}

TY - JOUR

T1 - Seismic strengthening of rigid steel frame with CFRP

AU - Tafsirojjaman, T.

AU - Fawzia, S.

AU - Thambiratnam, D.

AU - Zhao, Xiao Lin

N1 - Funding Information: The authors wish to thank the technical staff, Mr Frank De Bruyne, Mr Barry Hume and Mr Glenn Atlee for their assistance in conducting the experimental study reported in this research at the Banyo Pilot Plant Precinct of Queensland University of Technology (QUT). The authors also wish to thank Mr Mark Hayne, Technologist of Design and Manufacturing Centre of QUT for his assistance in specimen preparation. The authors also wish to thank Queensland University of Technology (QUT) for the financial support for the experimental work reported in this study. Publisher Copyright: © 2018 Politechnika Wrocławska

PY - 2019/3

Y1 - 2019/3

N2 - Steel frames are a very popular choice in building construction and are used extensively in high seismic risk regions across the world. These existing and future constructed steel frames may need to undergo seismic strengthening to mitigate the high collapse risk during possible earthquakes in the future. In this study a finite element (FE) model was developed, analysed and the results compared with the present self-performed experimental study using shake table tests of steel frames strengthened with externally bonded carbon fibre reinforced polymers (CFRP) composites to validate the modelling techniques. The validated modelling technique are then used for a comprehensive parametric study on the effects of frequency of excitation, maximum acceleration, modulus of CFRP, thickness of CFRP, number of CFRP layers and adhesive type on the seismic response of the frame structure. The results indicate that externally bonded CFRP strengthening is very effective for seismic strengthening of steel frames. The CFRP strengthening technique reduced the lateral deflection by improving the stiffness and energy absorption capacity of the steel frames.

AB - Steel frames are a very popular choice in building construction and are used extensively in high seismic risk regions across the world. These existing and future constructed steel frames may need to undergo seismic strengthening to mitigate the high collapse risk during possible earthquakes in the future. In this study a finite element (FE) model was developed, analysed and the results compared with the present self-performed experimental study using shake table tests of steel frames strengthened with externally bonded carbon fibre reinforced polymers (CFRP) composites to validate the modelling techniques. The validated modelling technique are then used for a comprehensive parametric study on the effects of frequency of excitation, maximum acceleration, modulus of CFRP, thickness of CFRP, number of CFRP layers and adhesive type on the seismic response of the frame structure. The results indicate that externally bonded CFRP strengthening is very effective for seismic strengthening of steel frames. The CFRP strengthening technique reduced the lateral deflection by improving the stiffness and energy absorption capacity of the steel frames.

KW - CFRP

KW - Finite element analysis

KW - Seismic strengthening

KW - Shake table test

KW - Steel frame

UR - http://www.scopus.com/inward/record.url?scp=85059403241&partnerID=8YFLogxK

U2 - 10.1016/j.acme.2018.08.007

DO - 10.1016/j.acme.2018.08.007

M3 - Journal article

AN - SCOPUS:85059403241

SN - 1644-9665

VL - 19

SP - 334

EP - 347

JO - Archives of Civil and Mechanical Engineering

JF - Archives of Civil and Mechanical Engineering

IS - 2

ER -

Seismic strengthening of rigid steel frame with CFRP

Abstract

Keywords

ASJC Scopus subject areas

More information

Other files and links

Fingerprint

Cite this