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Buckling of built-up columns of pultruded fiber-reinforced polymer C-sections
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Boscato, Giosuè, Casalegno, Carlo, Russo, S. and Mottram, J. Toby (2014) Buckling of built-up columns of pultruded fiber-reinforced polymer C-sections. Journal of Composites for Construction, 18 (4). 04013050. doi:10.1061/(ASCE)CC.1943-5614.0000453 ISSN 1090-0268.
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WRAP_Mottram_8773432-es-291113-boscato_g_casalegno_c_russo_s_mottram_jt_j_comp_constr_0000453_2104.pdf - Accepted Version Download (1551Kb) | Preview |
Official URL: http://dx.doi.org/10.1061/(ASCE)CC.1943-5614.00004...
Abstract
This paper presents the test results of an experimental investigation to evaluate the buckling behavior of built-up columns of pultruded profiles, subjected to axial compression. Specimens are assembled by using four (off the shelf) channel shaped profiles of E-glass fiber-reinforced polymer (FRP), having similar detailing to strut members in a large FRP structure that was executed in 2009 to start the restoration of the Santa Maria Paganica church in L’Aquila, Italy. This church had partially collapsed walls and no roof after the April 6, 2009, earthquake of 6.3 magnitude. A total of six columns are characterized with two different configurations for the bolted connections joining the channel sections into a built-up strut. Test results are discussed and a comparison is made with closed-form equation predictions for flexural buckling resistance, with buckling resistance values established from both eigenvalue and geometric nonlinear finite element analyses. Results show that there is a significant role played by the end loading condition, the composite action, and imperfections. Simple closed-form equations overestimate the flexural buckling strength, whereas the resistance provided by the nonlinear analysis provides a reasonably reliable numerical approach to establishing the actual buckling behavior.
Item Type: | Journal Article | ||||||||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) | ||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||||||
Library of Congress Subject Headings (LCSH): | Columns, Columns -- Italy, Buckling (Mechanics), Engineering -- Research, Engineering models | ||||||||||
Journal or Publication Title: | Journal of Composites for Construction | ||||||||||
Publisher: | American Society of Civil Engineers | ||||||||||
ISSN: | 1090-0268 | ||||||||||
Official Date: | 2014 | ||||||||||
Dates: |
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Volume: | 18 | ||||||||||
Number: | 4 | ||||||||||
Article Number: | 04013050 | ||||||||||
DOI: | 10.1061/(ASCE)CC.1943-5614.0000453 | ||||||||||
Status: | Peer Reviewed | ||||||||||
Publication Status: | Published | ||||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||||
Date of first compliant deposit: | 29 February 2016 | ||||||||||
Date of first compliant Open Access: | 29 February 2016 |
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