A Quadrangular Shell Finite Element for Concrete and Steel Structures         Subjected to Fire

Talamona, Didier

doi:10.1177/1042391505052769

Cited by 37 publications

(17 citation statements)

References 13 publications

(21 reference statements)

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“…(1), allows elastic behaviour up to σ eq = 0.305f c and has a finite slope at ε pl,eq = 0. Details of the concrete model used in the shell element are presented elsewhere [21].…”

Section: Biaxial Concrete Modelmentioning

confidence: 99%

Numerical modelling of two-way reinforced concrete slabs in fire

Lim¹,

Buchanan

Moss

et al. 2004

Engineering Structures

102

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This paper describes numerical modelling of the fire behaviour of two-way reinforced concrete slabs using a special purpose non-linear finite-element program, SAFIR. Several two-way reinforced concrete and composite steel-concrete slabs are tested under exposure to the ISO standard fire in order to validate the shell finite element in the SAFIR program. The modelling results showed agreement with the fire tests and demonstrate that the SAFIR shell element can be used to predict tensile membrane behaviour of two-way reinforced concrete slabs in fire conditions. The analyses show that two-way slabs have excellent fire resistance if they deform in double curvature and develop tensile membrane action.

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“…(1), allows elastic behaviour up to σ eq = 0.305f c and has a finite slope at ε pl,eq = 0. Details of the concrete model used in the shell element are presented elsewhere [21].…”

Section: Biaxial Concrete Modelmentioning

confidence: 99%

Numerical modelling of two-way reinforced concrete slabs in fire

Lim¹,

Buchanan

Moss

et al. 2004

Engineering Structures

102

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“…Therefore, it is considered that the model applied in the programme SAFIR is able to reproduce the behaviour of stainless steel plate girders affected by shear buckling at normal temperature. As the software has been widely validated at elevated temperatures [26,27], it is expected that it is also capable to accurately simulate the shear buckling behaviour of stainless steel plate girders subjected to elevated temperatures.…”

Section: Discussion Of Numerical and Experimental Resultsmentioning

confidence: 99%

Stainless Steel Plate Girders Subjected to Shear Buckling at Normal and Elevated Temperatures

et al. 2016

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Plate girders are widely used as structural members in the steel construction industry because of their ability to support heavy loads over long spans. Therefore, it is very important to know their behaviour under different conditions. For material efficiency, plate girders usually have slender webs when compared to the ones on commercial hot rolled profiles, making them prone to the occurrence of shear buckling. In case of fire, shear buckling may be precipitated due to the reduction of the steel mechanical properties caused by the elevated temperatures. Regarding the resistance determination, numerical simulation has been gaining an edge on experimental analysis over the past years, mainly due to the high cost of the fire resistance experimental tests. However, the numerical models must be properly validated in order to perform reliable numerical studies. With this purpose, as no experimental tests in stainless steel plate girders subjected to elevated temperatures were found, a total of 34 experimental tests at normal temperature have been numerically modelled. The tested stainless steel plate girders had different configurations, provided with transversal and longitudinal stiffeners. Comparative analyses between those experimental and numerical results have been done. Afterwards, the developed numerical model has been used to perform a sensitivity analysis on the influence of the initial geometric imperfections at both normal and elevated temperatures, considering different values for its amplitudes. The effect of the residual stresses has also been analysed at normal temperature and in case of fire. Finally, comparisons between the numerical results and the Eurocode 3 design procedures have been performed.

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“…SAFIR has undergone extensive validation and results from SAFIR have been shown to closely match those from other numerical models and test data. Details of the validations can be seen in the literature [36][37][38].…”

Section: Computer Programmentioning

confidence: 99%

An Approach for Evaluating the Fire Resistance of CFHSS Columns under Design Fire Scenarios

Fike¹,

Kodur²

2009

Journal of Fire Protection Engineering

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The use of concrete filling offers a practical alternative for achieving the required fire resistance in steel hollow structural section columns. However, the current prescriptive-based approach which evaluates fire resistance based on standard fire exposure does not account for realistic fire scenarios in the design of concrete-filled hollow structural section (CFHSS) columns. This article presents a methodology for evaluating the fire resistance of CFHSS columns under design fire scenarios without the need for costly computational models. The proposed approach is a derivative of the equal area concept, and evaluates the equivalent fire resistance of the column by comparing the time temperature curve of the standard fire exposure with that of the design fire exposure. The method has been validated against the results generated from finite element analysis (coupled heat transfer and strength analysis) on numerous CFHSS columns under a large number of design fires. The applicability of the approach in design situations is illustrated through a numerical example, and it is concluded that the proposed approach offers an attractive alternative for deriving equivalent fire resistance of CFHSS columns exposed to design fire scenarios.

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A Quadrangular Shell Finite Element for Concrete and Steel Structures Subjected to Fire

Cited by 37 publications

References 13 publications

Numerical modelling of two-way reinforced concrete slabs in fire

Numerical modelling of two-way reinforced concrete slabs in fire

Stainless Steel Plate Girders Subjected to Shear Buckling at Normal and Elevated Temperatures

An Approach for Evaluating the Fire Resistance of CFHSS Columns under Design Fire Scenarios

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