An integrated adaptive environment for fire and explosion analysis of steel frames — Part I:

Song, Lei; Izzuddin, B.A.; Elnashai, Amr S.; Dowling, P J

doi:10.1016/s0143-974x(99)00040-1

Cited by 84 publications

(39 citation statements)

References 12 publications

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“…Several material models can be utilised with this formulation, including the recently developed elevated temperature models for steel [5] and for concrete [14] .…”

Section: Numerical Modelling Of Fire Compartmentmentioning

confidence: 99%

“…The bilinear model with kinematic strain-hardening [5] is used for the steel material ( Figure 4.a),…”

Section: Steel Beams and Columnsmentioning

confidence: 99%

“…To achieve improved understanding of the overall structural response under fire, numerical tools varying in scope and sophistication have been developed in the UK by several academic institutions, such as Imperial College [5] , the University of Sheffield [6] and the University of Edinburgh [7] . This paper is concerned with modelling the corner fire test undertaken by BRE at Cardington using the Imperial College nonlinear structural analysis program ADAPTIC [8] , drawing pertinent conclusions from the numerical simulation.…”

Section: Introductionmentioning

confidence: 99%

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Lessons from a full-scale fire test

Izzuddin

Moore

2002

Proceedings of the Institution of Civil Engineers - Structures

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This paper draws together some important lessons from a compartment fire test conducted by BRE in the full-scale eight storey steel building at Cardington. The experiment is briefly described, and the main structural observations are highlighted. A numerical structural model of the fire compartment, using the nonlinear analysis program ADAPTIC, is then discussed.The numerical analysis employs a grillage to model the composite floor slab, and uses a onedimensional element to model the supporting steel beams and columns. Detailed consideration of the numerical model illustrates the importance of accounting for thermal expansion effects, and leads to the identification of a load carrying mechanism at full temperature in which both the floor slab and the composite beam play an important role. A sensitivity study is then carried out in which characteristic sizes of various components and strengths of the different steel and concrete materials are varied, and the influence of such variations on the floor system response is investigated. This not only highlights the relative importance of various components in resisting the floor loading, but also sheds considerable light on the extent of plasticity developed within the various materials over the structure. Finally, several implications of the present experimental and numerical findings towards an improved design procedure, which accounts for the interaction between the floor slab and the composite beam at elevated temperature, are discussed.

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“…Several material models can be utilised with this formulation, including the recently developed elevated temperature models for steel [5] and for concrete [14] .…”

Section: Numerical Modelling Of Fire Compartmentmentioning

confidence: 99%

“…The bilinear model with kinematic strain-hardening [5] is used for the steel material ( Figure 4.a),…”

Section: Steel Beams and Columnsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Lessons from a full-scale fire test

Izzuddin

Moore

2002

Proceedings of the Institution of Civil Engineers - Structures

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“…The interactive effect between blast and fire has been a concern in designing some of the offshore platforms and design issues are discussed by SCI (1992). However, the fire resistance of structures after the action of blast has been investigated by only a few researchers (Song et al, [11]; Izzuddin et al, [12]; Liew and Chen [13,14]). Song et al [15] developed a program with appropriate solvers for blast and fire effects.…”

Section: Introductionmentioning

confidence: 99%

Steel Framed Structures Subjected to the Combined Effects of Blast and Fire - Part 1: State-of-the-Art Review

Yu¹,

Liew²

2005

Volume 1 Number 1

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Design of public infrastructure against terrorism has become a rising concern with the objective of reducing the level of damage to property and the loss of life. Some of the terrorism acts take the form of blast followed by fire causing catastrophic failure of the structure. This paper studies the response of steel framed structures subjected to the combined effects of blast and fire. A state-of-the-art summary on issues related to separate assessment of blast and fire resistance of multistory building frames is provided. This is followed by a systematic investigation on the combined effects of blast and fire using a proposed two-step dynamic analysis procedure. In Part 2 of a companion paper, a typical multi-storey building will be analyzed to study its behavior under a medium-scale explosion which triggers a post-blast fire in the affected compartment. This particular structure is found to be vulnerable as it possesses little fire resistance due to the high level of deformation caused by the blast load. The aim of this two-part paper is to advance the use of simulation tools for c co ol ll la ap ps se e a an na al ly ys si is s o of f three dimensional steel structures s su ub bj je ec ct t t to o a at tt ta ac ck k b by y f fi ir re e a an nd d e ex xp pl lo os si io on n so that the complex interaction effects of blast and fire can be understood and quantified.

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“…Besides, warping effects is significant in thin-walled members. Therefore, in the past decade, more and more 3-D programs have been developed to achieve more accurate simulations (Wang et al [5], Najjar and Burgess [6], Song et al [7], Iu and Chan [9], Iu et al [10], Ma and Liew [11]), the pace hastened by the rapid development of computer technology. These programs allow structural fire engineers to analyse a structure in a more holistic way through 3D full-frame analysis.…”

mentioning

confidence: 99%

Fe Simulation of Space Steel Frames in Fire With Warping Effect

Huang¹,

Tan²

2007

Volume 3 Number 3

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Most structural fire resistance analyses are confined to 2-D frames. To gain a more in-depth understanding of the response of a steel frame at elevated temperatures, 3-D simulations are necessary. This paper outlines the formulation of a two-noded 3-D beam-column to study the response of a steel frame in fire. The program is capable of small-strain large deformation analysis. Warping effect, a significant phenomenon in thin-walled members, is considered in the formulation. Degradation of steel mechanical properties at elevated temperatures is also considered, while thermal gradient is considered by slicing a cross-section into discrete segments. Creep can be either implicitly or explicitly taken into account. Several widely-used beam-to-column connections are approximated as zero-length semi-rigid springs. Their nonlinear moment-rotation relationships at elevated temperature are incorporated into the program. Unloading of both material stress-strain curve and moment-rotation characteristics of a connection are accounted for. The Newton-Raphson method is employed for nonlinear solving procedure. At the latter part of this paper, the program is verified against benchmark tests. All of them demonstrate the accuracy and reliability of the program.

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An integrated adaptive environment for fire and explosion analysis of steel frames — Part I:

Cited by 84 publications

References 12 publications

Lessons from a full-scale fire test

Lessons from a full-scale fire test

Steel Framed Structures Subjected to the Combined Effects of Blast and Fire - Part 1: State-of-the-Art Review

Fe Simulation of Space Steel Frames in Fire With Warping Effect

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