A Simplified Approach for Predicting Temperature Profile in Steel Members With Locally Damaged Fire Protection

Dwaikat, Mahmud; Kodur, Venkatesh

doi:10.1007/s10694-011-0241-x

Cited by 19 publications

(12 citation statements)

References 11 publications

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“…The reduction ratio of TCCs at elevated temperatures followed the results of the TGA with insignificant modification based on FEA results and previous TCC studies between polymers and metal. The boundary conditions, including the heat transfer, convection, and radiation, at heated and unheated surfaces, were determined by several studies [ 47 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 , 61 , 62 , 63 , 64 , 65 , 66 , 67 , 68 ]. A summary of the material and interfacial properties is shown in Figure 11 , Figure 12 and Figure 13 .…”

Section: Verifications With Finite Element Analysismentioning

confidence: 99%

Thermal Contact Conductance-Based Thermal Behavior Analytical Model for a Hybrid Floor at Elevated Temperatures

et al. 2020

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Hybrid floors infilled with polymeric materials between two steel plates were developed as a prefabricated floor system in the construction industry. However, the floor’s fire resistance performance has not been investigated. To evaluate this, fire tests suggested by the Korean Standards should be performed. As these tests are costly and time consuming, the number of variables were limited. However, many variables can be investigated in other ways such as furnace tests and finite element analysis (FEA) with less cost and time. In this study, furnace tests on heated surface areas smaller than 1 m2 were conducted to investigate the thermal behavior of the hybrid floor at elevated temperatures. To obtain the reliability of the proposed thermal behavior analytical (TBA) model, verifications were conducted by FEAs. Thermal contact conductance including interfacial thermal properties between two materials was adopted in the TBA model, and the values at elevated temperatures were suggested based on thermo-gravimetric analyses results and verified by FEA. Errors between the tests and TBA model indicated that the model was adequate in predicting the temperature distribution in small-scale hybrids. Furthermore, larger furnace tests and analysis results were compared to verify the TBA model’s application to different sized hybrid floors.

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Section: Verifications With Finite Element Analysismentioning

confidence: 99%

Thermal Contact Conductance-Based Thermal Behavior Analytical Model for a Hybrid Floor at Elevated Temperatures

et al. 2020

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“…Combing Eqn (7) to Eqn (16), the steel temperature development exposed to localized fire in large spaces could be evaluated by Eqn (17).…”

Section: Steel Temperature(xyzt)mentioning

confidence: 99%

Overall stability analysis of oversized steel‐framed buildings in a fire

Zhang

Zhu

Yuan³

et al. 2014

Fire and Materials

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Summary Our present paper summarizes the shortcomings in the current fire‐resistant design of oversized steel structures and proposes a method for overall stability analysis of steel structures in the event of fire. The Fire Dynamics Simulator (FDS) software platform–based large‐eddy simulation technology can accurately reflect the environment in a fire scenario and correctly predict the spatial–temporal change in the smoke temperature field within an oversized space. Adopting the FDS software and finite element structural analysis (ANSYS) coupling can fundamentally overcome the natural defect of adopting the International Organization for Standardization (ISO) standard curve (or other indoor homogeneous temperature increase curves) that substitutes a point for the overview of a field. They reflect the structural additional internal force and internal force redistribution incurred by the gradient temperature difference of the spatial–temporal changing nonhomogeneous temperature field and both theoretically and technically realize the analysis of structural heat transfer and mechanical properties in a natural fire. Furthermore, a modified model to predict the steel temperature curve in localized fire is also proposed. The localized fire in large spaces can be treated as a point fire source to evaluate the flame thermal radiation to steel members in the modified model. Copyright © 2014 John Wiley & Sons, Ltd.

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“…Li and Du, Xue Suduo, and Fan et al studied the heating process of air in a large space and developed a mathematical model of the time‐related temperature field. Kudor and Wong considered a real‐life fire scenario in a steel structure. Using independent programming, a computational model was developed for a temperature field of the steel structure.…”

Section: Introductionmentioning

confidence: 99%

Stability analysis of large‐span steel truss structure under local cooling from fire extinguishing system

Zhang

Zhu

Yuan

et al. 2017

Structural Design Tall Build

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Summary In case of a fire in large‐span steel structure buildings, the firefighters usually use water to cool the steelwork. However, during the cooling by the spraying water, the collapse of these structures is unclear. In this paper, a large‐span center is taken as an example to study the overall mechanical response process under local cooling conditions in fire. The Fire Dynamics Simulator has been used to investigate the temperature field distribution rule of large‐span buildings under fire. Using the coupled thermal‐mechanical method to study the overall mechanical response process of steel structure under local abrupt drop in temperature, displacement and stress variations of the large‐span steel structure under local cooling have been analyzed. Results of this study show that the temperature distribution in large‐span structures is nonuniform in fire. Using spraying water to cool the structural members in fire can cause the structural stress field redistributed that may lead to further damage to the structure.

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A Simplified Approach for Predicting Temperature Profile in Steel Members With Locally Damaged Fire Protection

Cited by 19 publications

References 11 publications

Thermal Contact Conductance-Based Thermal Behavior Analytical Model for a Hybrid Floor at Elevated Temperatures

Thermal Contact Conductance-Based Thermal Behavior Analytical Model for a Hybrid Floor at Elevated Temperatures

Overall stability analysis of oversized steel‐framed buildings in a fire

Stability analysis of large‐span steel truss structure under local cooling from fire extinguishing system

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