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Cyclic response of hollow and concrete-filled circular hollow section braces
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Sheehan, Therese and Chan, Tak-Ming (2014) Cyclic response of hollow and concrete-filled circular hollow section braces. Proceedings of the ICE - Structures and Buildings, Volume 167 (Number 3). pp. 140-152. doi:10.1680/stbu.12.00033 ISSN 0965-0911.
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Official URL: http://dx.doi.org/10.1680/stbu.12.00033
Abstract
The behaviour of seismic-resistant buildings relies heavily upon the inclusion of energy dissipating devices. For concentrically-braced frames, this function is accomplished by diagonal bracing members whose performance depends upon both cross-sectional properties and global slenderness. Traditionally preferred rectangular hollow sections are susceptible to local buckling, particularly in cold-formed tubes, owing to the residual stresses from manufacture. This paper explores the response of hollow and concrete-filled circular tubes under cyclic axial loading. The uniformity of the circular cross-section provides superior structural efficiency over rectangular sections and can be further optimised by the inclusion of concrete infill. A series of experiments was conducted on filled and hollow specimens to assess the merit of the composite section. Comparisons were drawn between hot-finished and cold-formed sections to establish the influence of fabrication on member performance. Two specimen lengths were utilised to assess the influence of non-dimensional slenderness. Parameters such as ductility, energy dissipation, tensile strength and compressive resistance are presented and compared with design codes and empirically derived predictions.
Item Type: | Journal Article | ||||
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Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | Proceedings of the ICE - Structures and Buildings | ||||
Publisher: | I C E Publishing | ||||
ISSN: | 0965-0911 | ||||
Official Date: | 2014 | ||||
Dates: |
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Volume: | Volume 167 | ||||
Number: | Number 3 | ||||
Page Range: | pp. 140-152 | ||||
DOI: | 10.1680/stbu.12.00033 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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