TY - CONF A1 - Helmerich, Rosemarie T1 - Long-Term measurement of vertical displacements at the outer concrete bridges of the Berlin Main Station N2 - The Berlin Main Station was built between 2000 and 2006. At the occasion of the 10th anniversary after the Berlin Main Station was officially opened to train traffic, a view back on eight years of monitoring was given. For the period of the construction with different load cases, the monitoring system was required by the Railway Authorities (Eisenbahnbundesam, EBA) to survey differential vertical displacements between neighbouring supports of the glas roof and the partially prestressed middle bridges. 128 sensors were installed.The data was published in the Internet with access restricted to the BAM scientists and the owner of the station, the German Railways DB AG. T2 - 33rd Danubia- Adria Symposium on Advances in Experimental Mechanics CY - Portorož, Slovenia DA - 20.09.2016 KW - Strain measurements KW - Monitoring KW - Differential displacements KW - Berlin Main Station KW - Hydraulic levelling system KW - Laser-based displacement measuring system PY - 2016 AN - OPUS4-37540 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Is data obtained through Non-destructive Testing reliable? N2 - Civil engineers, who are involved in nondestructive testing have to solve an essential task: the transfer of the results of NDT-research into practice. NDT in civil Engineering is a quite new discipline. The results must meet the needs of the infrastructure owners to convince them about the usefulness of NDT. The issue of reliability of the NDT-data was discussed. T2 - Reliability Workshop Polytechnical University HongKong CY - Hong Kong, China DA - 06.04.2016 KW - Civil infrastructure KW - Reliability KW - POD KW - NDT PY - 2016 AN - OPUS4-37545 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Investigation of Reinforcement Corrosion using Automated Low-Frequency Ultrasonic Echo T2 - Danube Adria Symposium CY - Stary Smokovec, Slowakei DA - 2015-09-21 PY - 2015 AN - OPUS4-34449 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Reinforcement corrosion detection with ultrasonic echo before cracking T2 - Danube Adria Symposium CY - Stary Smokovec, Slowakei DA - 2015-09-21 PY - 2015 AN - OPUS4-34450 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - DETECTION OF CRACKS PERPENDICULAR TO THE SURFACE USING ACOUSTIC METHODS T2 - NDT-CE 2015 CY - Berlin, Germany DA - 2015-09-15 PY - 2015 AN - OPUS4-34451 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Consideration of Defects in Assessment Procedures T2 - Wissenschaftliches Seminar an der Wroclaw University of Technology (WUT) anlässlich der ersten internationalen Dissertation CY - Wroclaw, Poland DA - 2009-03-04 PY - 2009 AN - OPUS4-22892 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Messungen und Laborversuche an der schweißeisernen Spreebrücke an der Berliner Friedrichstraße T2 - VDI-Vortrag, TU Berlin CY - Berlin, Germany DA - 2010-10-14 PY - 2010 AN - OPUS4-22857 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Contribution on non-destructive defect detection to bridge management T2 - IABMAS 2010 CY - Philadelphia, PA, USA DA - 2010-07-11 PY - 2010 AN - OPUS4-22933 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Inspection and condition assessment incl. state of the art T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17588 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Introduction to non-destructive testing T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17589 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Inspection guidelines and case studies T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17590 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Acoustic measurement methods T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17591 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Electromagnetic measurement methods T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17592 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Electrochemical and analytical non-destructive testing methods T2 - Technical Course in Non-destuctive Testing and Monitoring for Bridge Engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17593 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Inspection and non-destructive testing of steel bridges T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17594 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Validation of non-destructive testing methods T2 - Technical course in non-destuctive testing and monitoring for bridge engineers CY - Ängelholm, Sweden DA - 2008-05-14 PY - 2008 AN - OPUS4-17596 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CHAP A1 - Helmerich, Rosemarie ED - Boller, C. ED - Chang, F.-K. ED - Fujino, Y. T1 - Construction process monitoring at the new Berlin main station N2 - The construction process of the New Berlin Main Station, the former Lehrter Bahnhof, has been monitored from the beginning. In this station, the main European east-western railway connection crosses the north–south railway lines. Four east-western bridges, built in the first construction phase, carry the platforms for international lines and suburban train tracks. The outer two bridges carry the supports of the relatively flat glass roof, too. Since the glass roof is very sensitive to vertical displacements, the authorities required a complex monitoring system. This case study describes long-term measurements with classical and enhanced innovative sensors to monitor vertical displacements of neighboring glass roof supports. Additionally, traditional strain gauges were embedded parallel to long-gauge length fiber-optic strain sensors in the near-surface concrete of the partial prestressed bridges to reliably survey possible changes. The measurements on site go along with long-term laboratory tests on prestressed concrete beams. Researchers study load effects and long-term environmental influences on two large-scale model beams, inside and outside the laboratory. The monitoring system has been working stable as an early warning system for any changes of the structural conditions since 2002. All data are available on line for both the project team and the owner. KW - Long term monitoring KW - Vertical displacement KW - Strain measurement KW - Fiber optic sensors KW - Hydrostatic leveling system KW - Online data KW - Web presentation PY - 2009 SN - 978-0-470-05822-0 IS - Chapter 131 SP - 1 EP - 12 PB - John Wiley & Sons AN - OPUS4-20291 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Helmerich, Rosemarie T1 - Measurements, NDT and laboratory testing of the wrought iron bridge at Berlin-Friedrichstraße T2 - Schulung der Internationalen Eisenbahnbehörde zu Ergebnissen des Projektes Sustainable Bridges CY - Frankfurt am Main, Germany DA - 2010-11-03 PY - 2010 AN - OPUS4-22755 LA - deu 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 (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 - TY - CONF A1 - Helmerich, Rosemarie T1 - Opportunities and Limitation of Non-destructive Testing in Condition Assessment of Bridge Structures T2 - Munich Bridge Conference CY - Munich, Germany DA - 2009-05-27 PY - 2009 AN - OPUS4-19565 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -