SFB 477:  Life cycle assessment of structures via innovative Monitoring

• Subject Area: Construction Engineering and Architecture
• Term: from 1998 to 2009
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 5482117

The immense number of structures which are in use today requires more attention in the fields of preservation and rehabilitation.It is the aim of the collaborative research centre 477 to develop and enhance methods for a precise service life prediction of engineering structures by means of innovative monitoring methods. The collaborative research centre brings together scientists from the fields civil engineering, surveying, mechanical engineering, electrical engineering and chemistry, and additionally from the Federal Institute of Physics and Metrology (PTB) in Braunschweig.To account for the wide scope of engineering structures, the work focuses on projects in the fields structural engineering and landfill sites.The project is subdivided into the four research fields (A-D) to ensure an efficient collaboration of the particular research projects. A wide scope of topics is investigated: Development of monitoring strategies and procedures on a deterministic and probabilistic basis, measurement techniques, adaptive i.e. smart models which can adapt themselves to a changing system, development of new sensors and, last but not least, the application to real building structures such as bridges, towers, cranes, landfills etc.

• DFG Programme: Collaborative Research Centres

Completed projects

• A01 - Methods for risk and weak-point orientated assessment of structural monitoring (Project Head Hosser, Dietmar )
• A2 - Wissensbasiertes System "Meßtechnik im Bauwesen" zur Meßdatenerfassung und Auswertung innerhalb der Bauwerksüberwachung (Project Head Natke, Hans Günther )
• B1 - Modellgestützte Bauwerksüberwachung und Schadensdiagnose anhand eines online an den jeweiligen Zustand anzupassenden dynamischen Rechenmodells (Project Head Natke, Hans Günther )
• B03 - Life Time Assessment of Steel Structures by means of Monitoring and Testing (Project Head Peil, Udo )
• B04 - Fatigue life prediction for welded joints using new inspection techniques (Project Head Dilger, Klaus )
• B05 - Analysis of biological and chemical reaction processes in landfills (Project Head Haarstrick, Andreas )
• B06 - Analysis of coupled transport and reaction processes in landfills (Project Heads Dinkler, Dieter ;  Kowalsky, Ursula )
• B8 - Modellierung und Analyse von Mehrphasenprozessen im Deponieuntergrund (Project Head Helmig, Rainer )
• B09 - Adaptives Modell zur Dauerhaftigkeitsprognose im Zuge der Überwachung von Betonbauwerken (Project Heads Budelmann, Harald ;  Schmidt-Döhl, Frank )
• B10 - Damage Detection with Piezoceramic Acuators (Project Head Dinkler, Dieter )
• B11 - Modelladaptive simulation for the monitoring of weak spots and lifetime prediction of constructions (Project Head Reese, Stefanie )
• C1 - Faseroptische und mikrowellentechnische Sensoren für ein in-situ-Meßdatenerfassungssystem (Kennwort: Sensorik) (Project Heads Grahn, Walter ;  Jacob, Arne F. ;  Kowalsky, Wolfgang )
• C01 - Faseroptische Sensoren für die Bauwerksüberwachung (Project Heads Johannes, Hans-Hermann ;  Kowalsky, Wolfgang )
• C01 - Mikrowellensensoren und - meßtechnik für die Bauwerksüberwachung (Project Heads Grahn, Walter ;  Jacob, Arne F. )
• C2 - Zustandserfassung/beurteilung vorgespannter Zugglieder durch Monitoring (Project Heads Budelmann, Harald ;  Rostásy, Ferdinand S. )
• C3 - Mehrkomponenten-Dehnungs- und Spannungsaufnehmer für das Monitoring von Bauwerken (Project Head Peters, Manfred )
• C4 - Geodätische Sensoren und Methoden zur Bauwerksüberwachung (Project Head Niemeier, Wolfgang )
• C5 - Brucherkennung und Bruchortsbestimmung Spannstählen mittels einer elektromagnetischen Resonanzmessung (Project Heads Budelmann, Harald ;  Jacob, Arne F. )
• C06 - Risserkennung mit Hilfe von Piezo-Arrays (Project Head Peil, Udo )
• C07 - Lock-In-thermography for damage detection in fatigue-loaded steel structures (Project Head Ummenhofer, Thomas )
• D01 - Monitoring and evaluation of landfills (Project Heads Fricke, Klaus ;  Münnich, Kai )
• D03 - Registration and assessment of condition of prestressed tensile elements via monitoring (Project Head Budelmann, Harald )
• T01 - Entwicklung eines Mess-Systems zur Bestimmung der Vorspannkraft in Spanngliedern (Project Head Budelmann, Harald )
• T01 - Entwicklung eines Mess-Systems zur Bestimmung der Vorspannkraft in Spanngliedern (Project Head Budelmann, Harald )
• T02 - Integrierte Mikrosensoren für die Bauwerksüberwachung (Project Heads Johannes, Hans-Hermann ;  Kowalsky, Wolfgang )
• T02 - Integrierte Mikrosensoren für die Bauwerksüberwachung (Project Heads Johannes, Hans-Hermann ;  Kowalsky, Wolfgang )
• T03 - Mikrowellensystem für die zerstörungsfreie in-situ-Feuchtemessung in Bauwerken (Project Head Jacob, Arne F. )
• T03 - Mikrowellensystem für die zerstörungsfreie in-situ-Feuchtemessung in Bauwerken (Project Head Jacob, Arne F. )
• Z - Administration (Project Head Peil, Udo )

• Applicant Institution: Technische Universität Braunschweig
• Spokesperson: Professor Dr.-Ing. Udo Peil