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| IKPIR Atuhor: |
Jana ŠELIH // 1.16 Chapter or independent contribution in scientific book
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| Year: |
1996 |
| Citation: |
ŠELIH, Jana, SOUSA, Antonio C. M. Heat transfer and thermal stress
calculation in fire-exposed concrete walls. V: WROBEL, L.C. (ur.). 4th
International conference on advanced computational methods in heat transfer,
1996, Udine. Advanced computational methods in heat transfer. 4.
Southampton: Computational mechanics publications, cop. 1996, str. 265-274.
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| Summary: |
V članku predstavljamo analizo obnašanja betonske stene,
izpostavljene požaru na eni strani. Uporabljeni numerični model temelji na
kombiniranem modelu masnih in toplotnih pretokov in termalnih napetosti, ki
predstavlja linearne elastične deformacije. Analizer smo izvedli za različne
tipe požarov. Rezultati kažejo, da so termalne napetosti višje od napetosti,
ki se razvijejo v porah zaradi povišanih temperatur
An analysis
which combines heat and mass transport with the calculation of thermal
stresses due to non-uniform temperature distribution is presented for a
concrete wall exposed to different fire scenarios. The mathematical
formulation of simultaneous heat an mass transfer is based on the averaging
procedure over a representative elementary volume of the porous medium, and
in the thermal stresses calculation, linear elastic strains are assumed. The
results indicate that thermal stresses higher than those resulting from
vapour trapped within the material may develop in concrete walls exposed to
fire elevated temperatures |
| Typology: |
1.16 Chapter or independent contribution in scientific book |
| COBISS_ID: |
115047 Full COBISS entry |
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Entered 2001/08/08 19:56
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