Seismic strengthening of rigid steel frame with CFRP

Tafsirojjaman, T. ORCID: and Fawzia, S. and Thambiratnam, D. and Zhao, X. L. (2019) Seismic strengthening of rigid steel frame with CFRP. Archives of Civil and Mechanical Engineering, 19 (2). pp. 334-347. ISSN 1644-9665

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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.

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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Submitted version deposited in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 09 Aug 2021 07:21
Last Modified: 01 Sep 2021 01:37
Uncontrolled Keywords: CFRP, finite element analysis, seismic strengthening, shake table test, steel Frame
Fields of Research (2008): 09 Engineering > 0905 Civil Engineering > 090506 Structural Engineering
09 Engineering > 0905 Civil Engineering > 090599 Civil Engineering not elsewhere classified
09 Engineering > 0905 Civil Engineering > 090504 Earthquake Engineering
Fields of Research (2020): 40 ENGINEERING > 4005 Civil engineering > 400506 Earthquake engineering
40 ENGINEERING > 4005 Civil engineering > 400599 Civil engineering not elsewhere classified
40 ENGINEERING > 4005 Civil engineering > 400510 Structural engineering
40 ENGINEERING > 4016 Materials engineering > 401602 Composite and hybrid materials
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