Experimental investigation on temperature distribution of foamed concrete filled steel tube column under standard fire

Kado, Bishir; Mohammad, Shahrin; Lee, Yeong Huei; Shek, Poi Ngian; Kadir, Mariyana Aida Ab.

doi:10.1088/1755-1315/140/1/012136

Cited by 3 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Eurocode 2 and BS 8110 are not specified in the design of FC. Only composite columns have been found for compression members in previous research where FC was an infill material for hollow cold-formed steel sections under fire tests [183,184]. A record of reinforced FC column was rarely found in the previous investigation.…”

Section: Design Treatmentmentioning

confidence: 92%

Design Efficiency, Characteristics, and Utilization of Reinforced Foamed Concrete: A Review

et al. 2020

View full text Add to dashboard Cite

Foam concrete (FC) serves as an efficient construction material that combines well thermal insulation and structural properties. The studies of material characteristics, including the mechanical, physical, rheological, and functional properties of lightweight concrete, have been conducted rigorously. However, a lack of knowledge on the design efficiency of reinforced FC (RFC) was found in current research trends, compared to reinforced lightweight aggregate concrete. Therefore, this paper presents a review of the performance and adaption in structures for RFC. According to the code specifications, the feasibility investigation was preliminarily determined in structural use through the summary for the mechanical properties of FC of FC’s mechanical properties. For reinforced concrete design, a direct method of reduction factors is introduced to design lightweight aggregate concrete, which is also suggested to be adapted into a lightweight FC design. It was found that flexural shear behavior is a more complex theoretical analysis than flexure. However, a reduction factor of 0.75 was recommended for shear, torsion, and compression; meanwhile, 0.6 for flexural members. Serviceability limit states design should be applied, as the crack was found predominant in RFC design. The deflection controls were recommended as 0.7 by previous research. Research on RFC’s compression members, such as a column or load load-bearing wall, were rarely found. Thus, further study for validating a safe design of RFC applications in construction industries today is highly imperative.

show abstract

Section: Design Treatmentmentioning

confidence: 92%

Design Efficiency, Characteristics, and Utilization of Reinforced Foamed Concrete: A Review

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Ghojel [15] also defined a specific equation for situations in which the column is not subjected to an axial force. However, Equation 3 can be used for both situations, with and without the presence of axial force, considering that the existence of axial force, in actual design situations, causes small changes in the temperature field [29]. Considering the joint thermal conductance at the steel-concrete interface (hj), according to Ghojel, 2004 [15], the heat flux (q) is defined by Equation 7.…”

Section: Implementation In Numerical Modelsmentioning

confidence: 99%

Short columns composed of concrete-filled steel tubes in a fire situation – Numerical model and the “air-gap” effect

Rodrigues

Júnior

Neto³

2022

Rev. IBRACON Estrut. Mater.

View full text Add to dashboard Cite

The increase in temperature reduces the strength of steel and concrete, in such a way that it is essential to verify concrete-filled steel tube columns in fire situations. Numerical simulations, with lower costs than laboratory tests, have great importance in checking resistance and defining simplified methods for design practice. However, peculiarities of the thermal and mechanical behavior of heated confined concrete and the air-gap effect (a phenomenon inherent to concrete-filled steel columns) must still be better understood. Therefore, this study presents the development of a numerical model performed in the ABAQUS software (Dassault Systemes SIMULIA Corp., 2014) for the thermomechanical analysis of short columns composed of circular and square concrete-filled steel tubes considering the air-gap effect. The air-gap phenomenon is presented and analyzed according to possibilities of implementation to the numerical model and, finally, the proposed numerical model is validated with experimental results presented in the literature. According to the study results, the numerical model can be used to define and adjust simplified methods for verification of composite columns in fire situation. The importance of considering the air-gap effect in numerical modeling was confirmed, taking into account that disregarding its effect may result in overestimated responses of the steel tube resistance in fire situations. Moreover, it was suggested thermomechanical joint analysis and the use of the explicit solver as a strategy to minimize processing time.

show abstract

Temperature Distribution Characteristics of Steel Circular Tube Members under Oil Pool Fire Conditions: Experiment and Numerical Simulation

Wang

Xie

et al. 2021

Int J Thermophys

View full text Add to dashboard Cite

Experimental investigation on temperature distribution of foamed concrete filled steel tube column under standard fire

Cited by 3 publications

References 7 publications

Design Efficiency, Characteristics, and Utilization of Reinforced Foamed Concrete: A Review

Design Efficiency, Characteristics, and Utilization of Reinforced Foamed Concrete: A Review

Short columns composed of concrete-filled steel tubes in a fire situation – Numerical model and the “air-gap” effect

Temperature Distribution Characteristics of Steel Circular Tube Members under Oil Pool Fire Conditions: Experiment and Numerical Simulation

Contact Info

Product

Resources

About