Performance of steel–concrete composite structures in fire

Wang, Yongchang

doi:10.1002/pse.197

Cited by 38 publications

(24 citation statements)

References 72 publications

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“…Usmani and Cameron (2004) extended the method further by modeling the deflected shape of the slab with a cubic polynomial before calculating the membrane forces. Further refinement includes the pulling in of columns under high floor membrane action based on the work of Wang (1996Wang ( , 2005 and published by HERA in New Zealand (Clifton, 1998).…”

Section: Slab Membrane Action In Firementioning

confidence: 99%

“…For CFT columns, the steel tube may experience local buckling at the ends or along the length under fire exposure. If local buckling occurs at the ends, then the column should be considered pinned, but there is no clear guidance on when that happens, only indications that the location of the local buckling depends on the axial load, the thickness of the steel tube, and the bond between the steel tube and the concrete core (Wang, 2005).…”

Section: Critical Assessmentmentioning

confidence: 99%

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Structural Design for Fire: A Survey of Building Codes and Standards

Duthinh¹

2014

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This document is a critical assessment of building codes and standards pertaining to structural design for fire from the United States, Canada, European Union members, Japan, New Zealand and Australia. These countries were selected because of their vigorous research activities on this topic, and the relevance of their engineering practice to that in the US. In the US, there is a dynamic interplay between various consensus-based code writing bodies (such as the International Building Code), and professional associations (such as the Society of Fire Protection Engineers, the National Fire Protection Association, the American Society for Testing and Materials, the American Society of Civil Engineers, the American Institute for Steel Construction, the American Concrete Institute International, and the Precast/prestressed Concrete Institute), which can produce authoritative and influential guidance documents. It has been necessary to study not just the codes and standards, but also the specifications and guides where applicable. The review presents both prescriptive and performance-based standards, but puts more emphasis on the latter, and topics that are the subject of current research or in need of updating. The structural materials covered are steel, concrete and composites of steel and concrete. The assessment identifies gaps in U.S. codes and standards for the design of structures for fire.

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Section: Slab Membrane Action In Firementioning

confidence: 99%

Section: Critical Assessmentmentioning

confidence: 99%

Structural Design for Fire: A Survey of Building Codes and Standards

Duthinh¹

2014

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“…Experimental and analytical investigations involving full-scale fire tests indicated that tensile membrane action within the concrete floor slabs plays an important role in enhancing the fire resistance of composite buildings. The load carrying capacity of slab due to tensile membrane action is significantly higher than the slab under pure bending [2]. Tensile membrane action can occur when the slabs undergoes large vertical displacements.…”

Section: Introductionmentioning

confidence: 98%

The effects of protected beams and their connections on the fire resistance of composite buildings

Lin

Huang

Fan

2015

Fire Safety Journal

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According to full-scale fire tests, it is noticed that tensile membrane action within the concrete floor slabs plays an important role in affecting the fire resistance of composite buildings. It is well known that the development of tensile membrane actions relies on the vertical support along the edges of the slab panel. However, there is at present a lack of research into the influence of vertical supports on the tensile membrane actions of the floor slabs. In this paper, the performances of a generic three dimensional 45m x 45m composite floor subjected to ISO834 Fire and Natural Fire are investigated. Different vertical support conditions and three steel meshes are applied in order to assess the impact of vertical supports on tensile membrane action of floor slabs. Unlike other existing large scale modelling which assumes the connections behave as pinned or rigid for simplicity, two robust 2-node connection element models developed by the authors are used to model the behaviour of endplate and partial end-plate connections of composite structures under fire conditions. The impact of connections on the 3D behaviour of composite floor is taken into consideration.The load-transfer mechanisms of composite floor when connections fail due to axial tension, vertical shear and bending are investigated. Based on the results obtained, some design recommendations are proposed to enhance the fire resistance of composite buildings.

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“…Response phenomena occur during heating of a CFS column that influence failure but cannot currently be predicted with confidence [15]. The appropriate effective length of CFS columns in fire has received considerable research attention [16], yet available guidance, based almost entirely on computational modelling, may be unconservative. The reasons for and likely location of the formation of local buckling and failure of a CFS column remain unclear [16].…”

Section: Introductionmentioning

confidence: 99%

“…The appropriate effective length of CFS columns in fire has received considerable research attention [16], yet available guidance, based almost entirely on computational modelling, may be unconservative. The reasons for and likely location of the formation of local buckling and failure of a CFS column remain unclear [16]. The analysis in this paper seeks to determine whether some of the above uncertainties play roles in the performance of available structural fire design approaches.…”

Section: Introductionmentioning

confidence: 99%

Fire Resistance Design of Unprotected Concrete Filled Steel Hollow Sections: Meta-Analysis of Available Furnace Test Data

Rush¹,

Bisby²,

Melandinos³

et al. 2011

Fire Safety Science - Proceedings of the 10th International Sym

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Concrete filled steel hollow structural sections are an efficient, sustainable, and attractive option for both ambient temperature and fire resistance design of columns in multi-storey buildings and are increasingly common in modern construction practice around the world. Whilst the design of these sections at ambient temperatures is reasonably well understood, and models to predict the strength and failure modes of these elements correlate well with observations from tests, this appears not to be true in the case of fire resistant design. This paper assesses the statistical confidence in available fire resistance design models/approaches that are used in North America and Europe by performing a meta-analysis which compares the available experimental data from large-scale standard fire tests performed around the world against fire resistance predictions from design codes. It is shown that available design approaches carry a large uncertainty of prediction, suggesting that they fail to properly account for fundamental aspects of the underlying mechanics during fire. Current North American design approaches for CFS columns are shown to be considerably less conservative, on average, than those used in Europe.

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Performance of steel–concrete composite structures in fire

Cited by 38 publications

References 72 publications

Structural Design for Fire: A Survey of Building Codes and Standards

Structural Design for Fire: A Survey of Building Codes and Standards

The effects of protected beams and their connections on the fire resistance of composite buildings

Fire Resistance Design of Unprotected Concrete Filled Steel Hollow Sections: Meta-Analysis of Available Furnace Test Data

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