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Naslov:Experimental investigation on the effect of natural fire exposure on the post-fire behavior of reinforced concrete beams using electric radiant panel
Avtorji:ID Jovanović, Balša (Avtor)
ID Caspeele, Robby (Avtor)
ID Reynders, Edwin (Avtor)
ID Lombaert, Geert (Avtor)
ID Put, Florian (Avtor)
ID Lucherini, Andrea (Avtor)
ID Van Coile, Ruben (Avtor)
Datoteke:URL URL - Izvorni URL, za dostop obiščite https://onlinelibrary.wiley.com/doi/10.1002/suco.202400550
 
.pdf PDF - Predstavitvena datoteka. (1,80 MB, Vsebina dokumenta nedostopna do 25.11.2025)
MD5: 3C30A1867A4F2005012D29E628A6941E
 
Jezik:Angleški jezik
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:Logo ZAG - Zavod za gradbeništvo Slovenije
Povzetek:In this study, the effects of natural fire exposure on the post-fire behavior of concrete beams are investigated. The study is based on laboratory tests where three reinforced concrete beams were subjected to fire exposure using an electric radiant panel. This panel enables a precise application of radiative heat exposure closely mimicking natural fire exposure in a safe manner. During the test, the deflections, deformations and temperature changes are measured for all three concrete beams. Additionally, finite element modeling (FEM) is applied to supplement these tests, demonstrating the performance of existing structural fire engineering calculation tools in evaluating the burnout performance of concrete beams. The results of the tests show that the electric radiant panel provide a novel approach for fire simulation which is effective in replicating natural fire conditions, by applying the heat flux as specified in the Eurocode Parametric Fire Curve in a highly controlled manner. The uniformity of the temperature field measured inside the beams and the consistent deformations observed during the heat exposure across all three tests underscores the accuracy of the fire simulation. Furthermore, post-fire assessments reveal that while the exposed beams suffered some reduction in load-bearing capacity, they retained a significant portion of their original strength that was consistent across all three beams. The numerical simulations conducted in this study demonstrate a high level of accuracy in predicting the behavior of the concrete beams during fire exposure. These simulations effectively mirrored the experimental results, validating that they are a valuable tool for assessing concrete structures' performance in fire scenarios.
Ključne besede:concrete beam, fire testing, numerical modeling, radiant panel
Status publikacije:Objavljeno
Verzija publikacije:Recenzirani rokopis
Datum objave:25.11.2024
Založnik:Thomas Telford
Leto izida:2024
Št. strani:str. 1-16
PID:20.500.12556/DiRROS-20895 Novo okno
UDK:620.1/2
ISSN pri članku:1751-7648
DOI:10.1002/suco.202400550 Novo okno
COBISS.SI-ID:216514563 Novo okno
Avtorske pravice:© 2024 fib. International Federation for Structural Concrete
Datum objave v DiRROS:28.11.2024
Število ogledov:52
Število prenosov:16
Metapodatki:XML DC-XML DC-RDF
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Gradivo je del revije

Naslov:Structural concrete
Založnik:Thomas Telford
ISSN:1751-7648
COBISS.SI-ID:519127065 Novo okno

Gradivo je financirano iz projekta

Financer:Drugi - Drug financer ali več financerjev
Program financ.:FWO
Številka projekta:3G010220
Naslov:Vibration-based post-fire assessment of concrete structures using Bayesian updating techniques

Financer:EC - European Commission
Program financ.:H2020
Številka projekta:952395
Naslov:Fire-safe Sustainable Built Environment
Akronim:FRISSBE

Financer:Drugi - Drug financer ali več financerjev
Program financ.:FWO
Številka projekta:1137123N
Naslov:Characterization of the thermal exposure and material properties of concrete during the fire decay phase for performance-based structural fire engineering

Licence

Licenca:Drugo
Opis:This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited.

Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:betonski nosilec, požarno testiranje, numerično modeliranje, sevalna plošča


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