Thermo-Mechanical Behaviour of a Long-Span Precast Industrial Building
Session
Civil Engineering, Infrastructure and Environment
Description
Fire safety in precast concrete industrial buildings is a key concern in structural engineering due to their complex thermo-mechanical behaviour under high temperatures. This study examines how different modelling strategies and fire scenarios affect their global structural response, supporting performance-based design and safety evaluation. A representative precast building, composed of reinforced and prestressed concrete elements, is analysed through finite element simulations using SAFIR software. The ISO 834 nominal fire curve is compared with natural fire scenarios with load equivalent to 60 and 120 minutes of nominal fire duration. Both 2D and 3D models are developed, accounting for second-order effects, prestressing, and self-stresses arising from thermal gradients and structural restraints. The results highlight the significant influence of modelling assumptions and fire conditions on the predicted performance, underscoring the need for realistic simulation approaches in the fire safety assessment of precast concrete industrial structures.
Keywords:
Precast concrete, Industrial buildings, Prestressed members, Fire curves, Finite element analysis
Proceedings Editor
Edmond Hajrizi
ISBN
978-9951-982-41-2
Location
UBT Kampus, Lipjan
Start Date
25-10-2025 9:00 AM
End Date
26-10-2025 6:00 PM
DOI
10.33107/ubt-ic.2025.46
Recommended Citation
Bizzozero, Marco; Daniele, Francesco; and Lago, Bruno Dal, "Thermo-Mechanical Behaviour of a Long-Span Precast Industrial Building" (2025). UBT International Conference. 8.
https://knowledgecenter.ubt-uni.net/conference/2025UBTIC/CEIE/8
Thermo-Mechanical Behaviour of a Long-Span Precast Industrial Building
UBT Kampus, Lipjan
Fire safety in precast concrete industrial buildings is a key concern in structural engineering due to their complex thermo-mechanical behaviour under high temperatures. This study examines how different modelling strategies and fire scenarios affect their global structural response, supporting performance-based design and safety evaluation. A representative precast building, composed of reinforced and prestressed concrete elements, is analysed through finite element simulations using SAFIR software. The ISO 834 nominal fire curve is compared with natural fire scenarios with load equivalent to 60 and 120 minutes of nominal fire duration. Both 2D and 3D models are developed, accounting for second-order effects, prestressing, and self-stresses arising from thermal gradients and structural restraints. The results highlight the significant influence of modelling assumptions and fire conditions on the predicted performance, underscoring the need for realistic simulation approaches in the fire safety assessment of precast concrete industrial structures.