A study of the effect of partial loss of protection on the fire resistance of steel columns

Various calculation methods are proposed in codes for the evaluation of fire resistance of hollow steel columns filled with concrete, but the use of some of them may be very tedious for design engineers, and it may be interesting to have more practical tools at their disposal. In the comparative study presented here, three methods based on different procedures are investigated. Kodur’s method is a set of formulas allowing to calculate the fire resistance or the maximum applied load. Potfire is a computer program for which a user’s manual is provided and clean instructions describe how to introduce the data. SAFIR is a non-linear computer code that can simulate the behavior of structures under fire conditions. Comparisons are made between the results obtained by the three methods and test results. The differences are analyzed, and the influence of some parameters is examined. From the results obtained in this comparative study, it is possible to say in which cases each method can be used.

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Performance-based fire resistance design of concrete-filled steel columns

Journal of Constructional Steel Research ◽

10.1016/s0143-974x(99)00003-6 ◽

1999 ◽

Vol 51 (1) ◽

pp. 21-36 ◽

Cited By ~ 111

Author(s):

V.K.R. Kodur

Keyword(s):

Fire Resistance ◽

Steel Columns

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Fire Resistance of Fire‐Resistant Steel Columns

Journal of Structural Engineering ◽

10.1061/(asce)0733-9445(1994)120:4(1103) ◽

1994 ◽

Vol 120 (4) ◽

pp. 1103-1121 ◽

Cited By ~ 13

Author(s):

Y. Sakumoto ◽

T. Yamaguchi ◽

T. Okada ◽

M. Yoshida ◽

S. Tasaka ◽

...

Keyword(s):

Fire Resistance ◽

Resistant Steel ◽

Steel Columns ◽

Fire Resistant Steel

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Experimental Study on the Fire Resistance of Rectangular Hollow Sections Steel Columns

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.557-559.112 ◽

2012 ◽

Vol 557-559 ◽

pp. 112-115

Author(s):

In Kyu Kwon ◽

Heung Youl Kim ◽

Hyung Jun Kim

Keyword(s):

Engineering Design ◽

Fire Resistance ◽

Scientific Method ◽

Maximum Temperature ◽

Structural Elements ◽

Structural Members ◽

Building Collapse ◽

Steel Columns ◽

Fire Engineering ◽

Limiting Temperatures

A fire occurring at a building causes severe damages to its structural members and brings unexpected collapse. Therefore, the building regulation of each nation has to define fire resistance to prevent building collapse due to high temperatures. In general, the fire resistance of each structural member can be evaluated by two methods. One is prescriptive method that is guided by a specific building regulation containing fire resistance examples or by the application of new examples tested fire experimental procedures. The other is performance based fire engineering design. Being an engineered and scientific method, it utilizes the results obtained from the calculation of fire severities, temperatures of members and so on. The easiest way to evaluate the fire resistance of a steel member is to compare its limiting temperature and maximum temperature. Therefore, constructing the database of the limiting temperatures of structural elements is very important in performance based fire engineering design. This paper is to derive the fire resistance and limiting temperatures of rectangular hollow sections under loads.

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Performance of high strength concrete-filled steel columns exposed to fire

Canadian Journal of Civil Engineering ◽

10.1139/l98-023 ◽

1998 ◽

Vol 25 (6) ◽

pp. 975-981 ◽

Cited By ~ 44

Author(s):

VKR Kodur

Keyword(s):

Fire Resistance ◽

High Strength Concrete ◽

High Strength ◽

Experimental Program ◽

Structural Behaviour ◽

Steel Columns ◽

Strength Concrete ◽

Normal Strength ◽

Concrete Filling ◽

Hollow Structural Section

Results from an experimental program on the behaviour of high strength concrete-filled steel hollow structural section (HSS) columns will be presented for three types of concrete filling. A comparison will be made of the fire-resistance performance of HSS columns filled with normal strength concrete, high strength concrete, and steel-fibre-reinforced high strength concrete. The various factors that influence the structural behaviour of high strength concrete-filled HSS columns under fire conditions are discussed. It is demonstrated that, in many cases, addition of steel fibres into high strength concrete improves the fire resistance and offers an economical solution for fire-safe construction.Key words: high strength concrete, steel columns, fire-resistance design, high-temperature behaviour, concrete-filled steel columns.

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