TY - CONF A1 - Helmerich, Rosemarie T1 - Wrought iron arch bridge: measurements and materials testing T2 - 12th ICMS - Progress in steel and composite structures (Proceedings) N2 - In 1882, the East-West suburban train viaduct was built through Berlin as part of the public traffic solution in the late 19th Century. Today, the only left over iron arch bridge is a pair of two arches Crossing the Spree river in the middle of Berlin. Before dismantling the former parallel two original pairs of iron arches and rebuilding new arches for the high-speed railway line through Berlin in 1997, BAM was involved in an extensive test program of the heritage iron arch structure. Especially the estimation of accumulated damage in critical details and the verification of the old material properties at early stage was important information to the bridge owners. The testing program included two strain and displacement measurement campaigns, non-destructive testing, materials testing and microscale metallographic analysis of critical details. The measured strain cycles were significant lower in number and size than expected. Most of the cycles were compression stress cycles only. The work was planned in Cooperation with the Berlin consultancy Professor Hilbers that was responsible for the design and calculation of the reconstruction measures. Additionally, after calculation of the possible reuse of the old arches, we compared measured data from strain measurements with the results from calculation. The measured data and the calculated data show a good qualitative correlation. T2 - 12th ICMS - Progress in steel and composite structures CY - Wroclaw, Poland DA - 15.06.2011 KW - Iron arch bridge KW - Strain measurement KW - Displacement measurement KW - Tension test KW - Crack propagation test KW - Magnetic powder test PY - 2011 SN - 978-83-7125-202-0 SP - 1 EP - 8 AN - OPUS4-24157 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Trela, Christiane A1 - Stoppel, Markus A1 - Bien, J. A1 - Zwolski, J. A1 - Casas, J. A1 - Cruz, P.J.S. A1 - Topczewski, L. A1 - Horrigmoe, G. A1 - Holm, G. A1 - Krüger, M. A1 - Kammel, Ch. A1 - Große, Ch. A1 - Buhr, B. A1 - Aho, T. T1 - WP3-Guideline for inspection and condition assessment T2 - Sustainable Bridges Workshop "Last und Widerstandsbewertung" für Vertreter der Europäischen Eisenbahninfrastrukturabteilungen T2 - Sustainable Bridges Workshop "Last und Widerstandsbewertung" für Vertreter der Europäischen Eisenbahninfrastrukturabteilungen CY - Luleå, Sweden DA - 2007-03-27 PY - 2007 AN - OPUS4-14873 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Helmerich, Rosemarie A1 - Wiggenhauser, Herbert ED - Cruz, P. ED - Frangopol, D. T1 - Trends in bridge condition assessment using non-destructive testing methods T2 - Bridge maintenance, safety, management, life-cycle performance and cost T2 - Bridge Maintenance, Safety, Management, Life-Cycle Performance and Cost CY - Porto, Portugal DA - 2006-07-16 KW - NDT KW - Condition assessment KW - Automation of measurement KW - Data fusion PY - 2006 SN - 0-415-40315-4 N1 - Serientitel: Balkema proceedings and monographs in engineering, water and earth sciences – Series title: Balkema proceedings and monographs in engineering, water and earth sciences SP - 933 EP - 934 PB - Taylor & Francis CY - London AN - OPUS4-14037 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Traditional repair and strengthening of steel bridges T2 - Sustainable Bridges Workshop "Reparatur und Verstärkung" für Vertreter der Europäischen Eisenbahninfrastrukturabteilungen T2 - Sustainable Bridges Workshop "Reparatur und Verstärkung" für Vertreter der Europäischen Eisenbahninfrastrukturabteilungen CY - Luleå, Sweden DA - 2007-03-27 PY - 2007 AN - OPUS4-14872 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Stoppel, Markus A1 - Wiggenhauser, Herbert T1 - The role of advanced non-destructive techniques in condition assessment of existing bridges T2 - 2nd International Conference "Reliability, Safety and Diagnostics of Transport Structures and Means 2005", University of Pardubice T2 - 2nd International Conference "Reliability, Safety and Diagnostics of Transport Structures and Means 2005", University of Pardubice CY - Pardubice, Czech Republic DA - 2005-07-07 PY - 2005 AN - OPUS4-11776 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Helmerich, Rosemarie A1 - Niederleithinger, Ernst A1 - Stoppel, Markus A1 - Wiggenhauser, Herbert ED - Mencik, J. T1 - The role of advanced non-destructive techniques in condition assessment of existing bridges T2 - Proceedings of the 2nd International Conference "Reliability, Safety and Diagnostics of Transport Structures and Means 2005" T2 - 2nd International Conference "Reliability, Safety and Diagnostics of Transport Structures and Means 2005" CY - Parduce, Czech Republic DA - 2005-07-07 KW - Condition assessment KW - Non-destructive testing (NDT) KW - Scanning system KW - Impulse radar KW - Ultrasonic echo KW - Impact echo KW - Active thermography KW - LIBS PY - 2005 SN - 80-7194-769-5 SP - 111 EP - 118 PB - University of Pardubice CY - Pardubice AN - OPUS4-7695 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Täljsten, B. A1 - Helmerich, Rosemarie ED - Cruz, P. ED - Frangopol, D. T1 - Sustainable bridges: A European funded project for higher load and speed on railway bridges - WP6 repair and strengthening T2 - Bridge maintenance, safety, management, life-cycle performance and cost T2 - Bridge Maintenance, Safety, Management, Life-Cycle Performance and Cost CY - Porto, Portugal DA - 2006-07-16 KW - Sustainability KW - Bridges KW - Repair KW - Strengthening KW - Reinforced Concrete KW - Quality control KW - Non-Destructive Testing PY - 2006 SN - 0-415-40315-4 N1 - Serientitel: Balkema proceedings and monographs in engineering, water and earth sciences – Series title: Balkema proceedings and monographs in engineering, water and earth sciences SP - 339-340 (Book)/ 8 pages (CD-ROM) PB - Taylor & Francis CY - London AN - OPUS4-14417 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Niederleithinger, Ernst A1 - Helmerich, Rosemarie T1 - Sustainable Bridges - NDT as a Tool to Assist Railway Bridge Management T2 - NDE Conference on Civil Engineering T2 - NDE Conference on Civil Engineering CY - St. Louis, Missouri, USA DA - 2006-08-14 KW - Railways KW - Bridges KW - NDT KW - Condition assessment PY - 2006 SN - 1-57117-148-7 SP - 196 EP - 204 PB - ASTM CY - St. Louis AN - OPUS4-14436 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Helmerich, Rosemarie A1 - Kohlhoff, Harald A1 - Niemann, Joachim A1 - Werner, Klaus-Dieter T1 - Structural Condition Monitoring of a high-speed train station T2 - Structures for high-speed railway transportation T2 - IABSE symposium 2003 CY - Antwerp, Belgium DA - 2003-08-27 KW - Long term monitoring KW - Vertical displacement KW - Strain measurement KW - Fibre optic sensors KW - Hydrostatic levelling system KW - Online data KW - Web presentation PY - 2003 SN - 3-85748-109-9 N1 - Serientitel: IABSE reports – Series title: IABSE reports IS - 87 SP - 18 EP - 19 PB - IABSE CY - Zürich AN - OPUS4-2729 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Niemann, Joachim A1 - Kohlhoff, Harald A1 - Werner, Klaus-Dieter T1 - Structural Condition Monitoring of a high speed train station T2 - IABSE Symposium T2 - IABSE Symposium CY - Antwerp, Belgium DA - 2003-08-27 PY - 2003 AN - OPUS4-4229 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Kohlhoff, Harald A1 - Niemann, Joachim A1 - Werner, Klaus-Dieter T1 - Structural Condition Monitoring of a High Speed Train Crossing T2 - BRIDMO International Bridge Engineering School T2 - BRIDMO International Bridge Engineering School CY - Guimarães, Portugal DA - 2004-07-19 PY - 2004 AN - OPUS4-3820 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Feistkorn, S. A1 - Taffe, A. A1 - Wilsch, Gerd T1 - Reliability of NDE Data obtained from Concrete bridges N2 - Die Zuverlässigkeit von Daten, die mit zerstörungsfreien Prüfmethoden gewonnen werden sind von vielen Faktoren abhängig, z.B. dem Gerät, dem menschlichen Faktor, dem Materialeinfluss, dem Detail, dem Schadensteil aber auch von der Datenbearbeitung und -interpretation. Der Vortrag stellt den Stand der Möglichkeiten zur Quantifizierung von Ergebnissen der zerstörungsfreien Prüfung dar. N2 - The reliability of data, obtained from nondestructive testing depends on many different factors as e.g. the equipment, the human factor, the influence of material properties, geometrical accessibility of the given detail, the structure of the detail, but also from data acquisition, processing and interpretation. The presentation introduces to current possibilities for the quantification of measurement results received during nondestructive testing. T2 - Symposium on Jointless and Sustainable Bridges CY - Fuzhou, Fujian Province, China DA - 12.05.2016 KW - Probability of Detection KW - Nondestructive testing KW - Nondestructive evaluation KW - Reliability PY - 2016 AN - OPUS4-38081 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Täljsten, B. A1 - Carolin, A. A1 - Helmerich, Rosemarie ED - Jan Bien, ED - Lennart Elfgren, ED - Jan Olofsson, T1 - Rehabilitation of railway bridges T2 - Sustainable Bridges - Assessment for Future Traffic Demands and Longer Lives KW - Railway bridges KW - Repair and strengthening KW - CFRP-strengthening KW - Non-destructive testing PY - 2007 SN - 978-83-7125-161-0 SP - 303 EP - 312 PB - Dolnoslaskie Wydawnictwo Edukacyjne CY - Wroclaw, Poland AN - OPUS4-16094 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Arndt, Ralf A1 - Helmerich, Rosemarie A1 - Maierhofer, Christiane A1 - Röllig, Mathias ED - Forde, M. T1 - Quantitative Pulse-Phase-Thermography for Composites and Concrete Structures T2 - Structural faults & repair 2006 (Proceedings) N2 - The active approach for non-destructive-testing in Civil Engineering (NDT-CE) with infraredthermography (IR), developed at the Federal Institute for Materials Research and Testing (BAM), is described in part one of this contribution. The active IR-approach is based on the principles of impulse- (IT) and pulse-phase-thermography (PPT). The concept is a direct result of a research project at the BAM in cooperation with the Technical University of Berlin (TUB) and was funded by the Deutsche Forschungsgemeinschaft (DFG). In the second part results of the new thermography-scanning system (thermo-scanner) of BAM on debonding of multi-layered structures, especially carbon fibre reinforced plates (CFRP) on concrete are presented. Both, the thermo-scanner developed at BAM, and the investigations carried out, are part of the EU-Project Sustainable Bridges. In the third part of the paper the characteristic frequency of the optimum phase-contrast as a means for the characterization of defects’ depth in CE by means of PPT is introduced. A new quantitative approach is tested and discussed on concrete structures with defects of polystyrene and gas concrete. T2 - 11th International Conference and Exhibiton "Structural Faults and Repair - 2006" CY - Edinburgh, Scotland, UK DA - 2006-06-13 KW - Quantitative NDT KW - Impulse-thermography KW - Pulse-phase-thermography KW - Blind / characteristic frequency KW - Concrete KW - Thermo-scanner KW - CFRP-laminates KW - Debonding KW - Voids PY - 2006 SN - 0-947644-59-8 SP - 1(?) EP - 17(?) PB - Engineering Technics Pr., CY - Edingburgh AN - OPUS4-13794 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Maierhofer, Christiane A1 - Arndt, Ralf A1 - Röllig, Mathias A1 - Helmerich, Rosemarie A1 - Walther, A. A1 - Hillemeier, B. A1 - Rieck, C. T1 - Quantification of Voids and Elaminations in Real Concrete and Masonry Structures with Active Thermography: Case Studies T2 - 8th International Conference on Quantitative InfraRed Thermography (QIRT 2006) T2 - 8th International Conference on Quantitative InfraRed Thermography (QIRT 2006) CY - Padova, Italy DA - 2006-06-28 KW - Non-destructive testing in civil engineering KW - Active thermography KW - Pulse-phase thermography KW - Plaster KW - Tiles KW - Asphalt KW - Numerical simulation PY - 2006 UR - http://qirt.gel.ulaval.ca/archives/qirt2006/papers/049.pdf SP - 49, 1 EP - 10 (?) CY - Padova, Italy AN - OPUS4-15710 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Helmerich, Rosemarie A1 - Röllig, Mathias A1 - Schultz, A. A1 - Vielhaber, J. ED - Jan Bien, ED - Lennart Elfgren, ED - Jan Olofsson, T1 - Quality assurance of CRFP-strengthened reinforced concrete structures using automated thermographic investigation T2 - Sustainable Bridges - Assessment for Future Traffic Demands and Longer Lives KW - Quality assurance KW - Bridge repair and strengthening KW - Railway bridges KW - Non-destructive testing KW - Automated scanning PY - 2007 SN - 978-83-7125-161-0 SP - 321 EP - 330 PB - Dolnoslaskie Wydawnictwo Edukacyjne CY - Wroclaw, Poland AN - OPUS4-16091 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie A1 - Röllig, Mathias A1 - Maierhofer, Christiane A1 - Schultz, A. A1 - Vielhaber, J. T1 - Quality assurance for CFRP-plate-strengthening of RC-beams using impulse-thermography T2 - Sustainable Bridges Workshop für Vertreter der Europäischen Infrastrukturabteilungen T2 - Sustainable Bridges Workshop für Vertreter der Europäischen Infrastrukturabteilungen CY - Luleå, Sweden DA - 2007-03-27 PY - 2007 AN - OPUS4-14871 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - GEN A1 - Helmerich, Rosemarie A1 - Köpp, Christian A1 - Drdácký, M. A1 - Hennen, C. A1 - Lanza, L. A1 - Golez, M. A1 - Kolymbas, D. A1 - Herle, I. A1 - Virsta, A. A1 - Binda, L. ED - Mufti, A. ED - Banthia, N. T1 - Protection of cultural heritage against flood (CHEF) - A European research project T2 - CSHM-3 - Conservation of heritage structures: using FRM and SHM (Proceedings) T2 - CSHM-3 - Conservation of heritage structures: using FRM and SHM CY - Ottawa, Canada DA - 2010-08-11 KW - Cultural heritage KW - Flood KW - Preventive measures KW - Humidity measurements KW - Knowledge transfer KW - Case study PY - 2010 SN - 978-0-88865-883-8 SP - 361 EP - 370 CY - Vancouver, Canada AN - OPUS4-22352 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Practical applications of recent BAM-research results of NDT and monitoring in civil engineering N2 - Nondestructive testing and monitoring was of mayor interest in BAM-research related to the survey of civil engineering structures during the last two decades. Three case studies about research projects carried out at BAM were presented. All three projects focussed on the survey of parameters and safety related tasks in bridge engineering and inspection. First, the monitoring of the Berlin main station was presented with focus on the sensors developed specifically for this project. The second case study presented and application of guided ultrasonic waves to CFRP-strengthened bridges. The method was sucsessully applied to two of four different strengthening measures carried out min. 10 years ago. The last project presented the feasibility study of a network consisting of simple Bluetooth modules to survey changes in the moisture content in sand and massive concrete. T2 - Workshop CY - University of New South Wales, Sydney, Australia DA - 17.07.2018 KW - Monitoring KW - Wireless sensor network (WSN), KW - NDT KW - Guided waves KW - Bluetooth modules KW - Inspection KW - Civil infrastructure PY - 2018 AN - OPUS4-45657 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Opportunities and limitation of non-destructive testing in condition assessment of bridge structures T2 - Munich bridge assessment conference (Proceedings) T2 - Munich bridge assessment conference (MBAC 2009) CY - Munich, Germany DA - 2009-05-27 KW - Non-destructive testing KW - Condition assessment KW - Data fusion KW - Concrete bridges PY - 2009 SP - 1 EP - 13 AN - OPUS4-19597 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -