Please use this identifier to cite or link to this item:
https://hdl.handle.net/10316/4040
Title: | Experimental research on the critical temperature of compressed steel elements with restrained thermal elongation | Authors: | Rodrigues, J. P. Correia Neves, I. Cabrita Valente, J. C. |
Issue Date: | 2000 | Citation: | Fire Safety Journal. 35:2 (2000) 77-98 | Abstract: | In real structures, the loading conditions of steel elements subjected to the action of a localized fire change with time, if their axial elongation is restrained. The mechanical action on these elements has a major influence on their deformation, which in turn influences the magnitude of the interaction forces between the heated elements and the cold structure. The stiffness of the structure to which compressed elements belong has a main influence on the evolution of their axial force, and subsequently on their critical temperature and on their fire resistance. This paper describes the experimental model used in the Laboratory for Structures and Strength of Materials of the Department for Civil Engineering of Instituto Superior Técnico (IST), Lisbon, Portugal, to study the critical temperature of compressed steel elements with restrained thermal elongation. A total of 168 tests on hinged bars were performed. Four different slenderness values, two eccentricities of the compression load and six levels of restraint to the axial elongation were tested. The test results and the results of a computer simulation using a finite element program show that neglecting the effect of thermal axial restraint may result in overestimation of the fire resistance of columns. | URI: | https://hdl.handle.net/10316/4040 | DOI: | 10.1016/S0379-7112(00)00018-7 | Rights: | openAccess |
Appears in Collections: | FCTUC Eng.Civil - Artigos em Revistas Internacionais |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
file532f5f0eeb7c4ead99db3f87096f6f29.pdf | 1.16 MB | Adobe PDF | View/Open |
SCOPUSTM
Citations
99
checked on Aug 26, 2024
WEB OF SCIENCETM
Citations
74
checked on Aug 2, 2024
Page view(s) 50
419
checked on Aug 27, 2024
Download(s)
400
checked on Aug 27, 2024
Google ScholarTM
Check
Altmetric
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.