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author:

Tao, Zhong (Tao, Zhong.) [1] | Wang, Zhi-Bin (Wang, Zhi-Bin.) [2] | Han, Lin-Hai (Han, Lin-Hai.) [3]

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EI Scopus

Abstract:

This paper presents the test results of fire-exposed concrete-filled steel tubular (CFST) beam columns repaired by unidirectional carbon fibre reinforced polymer (CFRP) composites. The test results showed that the load-bearing capacity of the fire-exposed CFST beam-columns was enhanced by the CFRP jackets to some extent, while the influence of CFRP repair on stiffness was not apparent. The strength enhancement from CFRP confinement decreased with the increasing of eccentricity or slenderness ratio. Ductility enhancement was also observed except those axially loaded shorter specimens with rupture of CFRP jackets at the mid-height, occurred near the peak loads. However, the strengths of all repaired specimens have not been fully restored due to the long exposure time of them in fire. From the test results, it is recommended that, in repairing severely fire-damaged CFST members, slender members or those members subjected to comparatively large bending moments, other appropriate repair measures should be taken. © 2007 Taylor & Francis Group.

Keyword:

Beams and girders Carbon fiber reinforced plastics Carbon fibers Filled polymers Fires Repair Steel fibers Structure (composition)

Community:

  • [ 1 ] [Tao, Zhong]College of Civil Engineering, Fuzhou University, Fuzhou, Fujian Province, China
  • [ 2 ] [Wang, Zhi-Bin]College of Civil Engineering, Fuzhou University, Fuzhou, Fujian Province, China
  • [ 3 ] [Han, Lin-Hai]Department of Civil Engineering, Tsinghua University, Beijing, China

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Year: 2007

Page: 633-638

Language: English

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ESI Highly Cited Papers on the List: 0 Unfold All

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30 Days PV: 6

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