Experimental and numerical investigation of the response of GLT beams exposed to fire

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00351540" target="_blank" >RIV/68407700:21110/21:00351540 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.conbuildmat.2021.123846" target="_blank" >https://doi.org/10.1016/j.conbuildmat.2021.123846</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.conbuildmat.2021.123846" target="_blank" >10.1016/j.conbuildmat.2021.123846</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Experimental and numerical investigation of the response of GLT beams exposed to fire

Popis výsledku v původním jazyce

This paper presents a combined experimental and numerical investigation of the behavior of glued lam-inated timber beams when exposed to fire. The influence on the time variation of charring rates based onthe evolution of temperature profiles is examined for different fire scenarios and durations as well as dif-ferent beam’s cross-section sizes. Predictions of charring depths provided by numerical simulations ofheat transfer and simplified charring rate models are compared. In the absence of a mass transport rep-resentation, a Bayesian inference is introduced to identify the temperature-dependent material parame-ters for the conventional heat transfer model. A similar approach is adopted when adjusting the selectedparameters of the charring rate models to account for variations in actual fire scenarios, which potentiallydepart from standard fire exposure. When compared to experimental results, both approaches confirmedtheir predictive capabilities, particularly in the stage of initial design. Since presented in the framework ofBayesian statistics, they open the door to fully stochastic analysis with an emphasis on the load bearingcapacity of the studied beams

Název v anglickém jazyce

Experimental and numerical investigation of the response of GLT beams exposed to fire

Popis výsledku anglicky

This paper presents a combined experimental and numerical investigation of the behavior of glued lam-inated timber beams when exposed to fire. The influence on the time variation of charring rates based onthe evolution of temperature profiles is examined for different fire scenarios and durations as well as dif-ferent beam’s cross-section sizes. Predictions of charring depths provided by numerical simulations ofheat transfer and simplified charring rate models are compared. In the absence of a mass transport rep-resentation, a Bayesian inference is introduced to identify the temperature-dependent material parame-ters for the conventional heat transfer model. A similar approach is adopted when adjusting the selectedparameters of the charring rate models to account for variations in actual fire scenarios, which potentiallydepart from standard fire exposure. When compared to experimental results, both approaches confirmedtheir predictive capabilities, particularly in the stage of initial design. Since presented in the framework ofBayesian statistics, they open the door to fully stochastic analysis with an emphasis on the load bearingcapacity of the studied beams

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20101 - Civil engineering

Projekt

<a href="/cs/project/GA18-05791S" target="_blank" >GA18-05791S: Požární odolnost lepených lamelových dřevěných nosníků se zahrnutím nejistot</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Construction and Building Materials

ISSN

0950-0618

e-ISSN

1879-0526

Svazek periodika

299

Číslo periodika v rámci svazku

123846

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

18

Strana od-do

1-18

Kód UT WoS článku

000685924800007

EID výsledku v databázi Scopus

2-s2.0-85108316813