Seismic strengthening of rigid steel frame with CFRP
Article
Article Title | Seismic strengthening of rigid steel frame with CFRP |
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ERA Journal ID | 44673 |
Article Category | Article |
Authors | Tafsirojjaman, T. (Author), Fawzia, S. (Author), Thambiratnam, D. (Author) and Zhao, X. L. (Author) |
Journal Title | Archives of Civil and Mechanical Engineering |
Journal Citation | 19 (2), pp. 334-347 |
Number of Pages | 14 |
Year | 2019 |
Place of Publication | London, United Kingdom |
ISSN | 1644-9665 |
Digital Object Identifier (DOI) | https://doi.org/10.1016/j.acme.2018.08.007 |
Web Address (URL) | https://www.sciencedirect.com/science/article/abs/pii/S1644966518300980?via%3Dihub |
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 |
ANZSRC Field of Research 2020 | 400506. Earthquake engineering |
400599. Civil engineering not elsewhere classified | |
400510. Structural engineering | |
401602. Composite and hybrid materials | |
Public Notes | File reproduced in accordance with the copyright policy of the publisher/author. |
Byline Affiliations | Queensland University of Technology |
Monash University | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q65qy/seismic-strengthening-of-rigid-steel-frame-with-cfrp
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