KIRAS PL2: S.H.F. - Sicherheit von Hohlraumbauten unter Feuerlast

01.02.2008 - 31.01.2010
Forschungsförderungsprojekt
Fire loading of support structures made of concrete and steel, caused by accident, terror attack, or military action, results in significant damage of critical infrastructure (e.g., road or railway tunnels, bridges, underground communication infrastructure, etc.) and therefore jeopardizes the serviceability and stability of the structure. The assessment of the safety of such support structures (existing as well as under design) in the catastrophic event of a fire and subsequently during repair is the aim of the underlying research project. Currently, support structures are designed assuming linear-elastic material behavior. Especially in case of fire loading, characterized by combined thermal and mechanical loading, this assumption is wrong. Moreover, the assessment of the structural stability after fire loading during cooling, being essential for deciding on the need of additional support measures during repair, is disregarded. This stability assessment after fire is included in the holistic approach (fire loading → temperature distribution → structural response) of the proposed research project. The aim of this project is the assessment of the structural stability of critical infrastructure during and after fire loading considering realistic structural and material models, with the latter being developed and validated experimentally during the project. These material models shall be implemented into a numerical analysis tool (on the basis of the finite-element method), allowing the realistic simulation of the governing processes affecting the stability of structures subjected to fire loading. The developed analysis tool will be applied to three tunneling projects which are described in detail in Subsection 5.1.2.

Personen

Projektleiter_in

Projektmitarbeiter_innen

Institut

Contract/collaboration

  • ÖBB-Infrastruktur Bau AG
  • ASFINAG Bau Management GmbH
  • Wiener Linien GmbH & Co KG
  • Vereinigung der Österr. Zemetindustrie
  • Schimetta Consult ZT GmbH
  • Ingenieurbüro Dr. Lindlbauer
  • ZT Reismann

Grant funds

  • FFG - Österr. Forschungsförderungs- gesellschaft mbH (National) Austrian Research Promotion Agency (FFG)

Forschungsschwerpunkte

  • Composite Materials: 30%
  • Computational Materials Science: 20%
  • Computational Fluid Dynamics: 15%
  • Surfaces and Interfaces: 15%
  • Modeling and Simulation: 20%

Schlagwörter

DeutschEnglisch
Feuerfire
TunnelTunnel
Betonconcrete
Abplatzungenspalling
Struktursicherheit structural stability

Externe Partner_innen

  • Wiener Linien GmbH & Co KG
  • Autobahnen- und Schnellstraßen-Finanzierungs-Aktiengesellschaft
  • Vereinigung der Österreichischen Zementindustrie
  • ZT Reismann
  • Universität für Bodenkultur, Department für Bautechnik und Naturgefahren, Institut für konstruktiven Ingenieurbau
  • Ingenieurbüro Dr. Lindlbauer
  • Schimetta Consult ZT GmbH
  • ÖBB Infrastruktur Bau AG
  • Arbeitsgemeinschaft für Baustofftechnologie, Prüfung und Entwicklung

Publikationen