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Furtner P.,VCE Vienna Consulting Engineers | Della Ca D.,Mageba SA | Gosh C.,Mageba Bridge Products Pvt. Ltd.
Long Span Bridges and Roofs - Development, Design and Implementation | Year: 2013

A new cable-stayed bridge is currently under construction across the River Yamuna in Wazirabad, Delhi. The bridge will have a total length of 675 m, with a main span of 251 m. Its steel-concrete composite deck, with a total width of 35.20 m, will carry four lanes of traffic in each direction. Its dramatic inclined steel pylon, with a height of 154 metres, and elegant stay cable design, will make it a particularly attractive and imposing addition to the Wazirabad skyline. The bridge will be equipped with a sophisticated structural health monitoring system, supplied by a joint venture of Mageba India, Mageba Switzerland and Vienna Consulting Engineers. The paper describes the purpose of the system and the requirements it will fulfil, and presents the general system layout, a description of the equipment and the technical solution for data transfer. A special focus is given to the subject of data management, which includes the archiving, analysis and presentation of the recorded data. In addition to the compulsory control room devices, the system will include a user interface which allows secure internet access to the monitoring data and results, from any location at any time. Source

Anderlik S.,Johannes Kepler University | Stumptner R.,Johannes Kepler University | Freudenthaler B.,Software Competence Center Hagenberg | Fritz M.,VCE Vienna Consulting Engineers
iiWAS2010 - 12th International Conference on Information Integration and Web-Based Applications and Services | Year: 2010

This contribution deals with an approach to ontology-based integration of Decision Support Systems for Structural Health Monitoring, specifically the implementation of a damage detection strategy for identifying and localizing damages to (civil) infrastructure (e.g., bridges, piping systems or wind turbines). Different institutions operate a large variety of systems for measurement planning, recording and analysis and each of these systems has its advantages and disadvantages depending, for instance, on the type of structure to be monitored. To combine the advantages of such heterogeneous systems, computer-supported collaboration is useful, which leads each institution to consider developing its own domain ontology. This knowledge can be integrated by means of a higher-level ontology to use different operations and approaches together for cumulative advantages. Hence, a concept for ontology-based integration building upon ideas of semantic data integration was developed, which stands out from other approaches as it uses a single ontology as its metavocabulary and a mediator-driven architecture. Copyright 2010 ACM. Source

Rosko P.,Vienna University of Technology | Beko A.,VCE Vienna Consulting Engineers
11th World Congress on Computational Mechanics, WCCM 2014, 5th European Conference on Computational Mechanics, ECCM 2014 and 6th European Conference on Computational Fluid Dynamics, ECFD 2014 | Year: 2014

The contribution deals with reinforced concrete shear wall model. On the base of experimental testing data is created a single degree of freedom nonlinear finite element. The nonlinear finite element is represented by parallel ordered spring and friction elements. The stiffness reduction in the sequence of load cycles is taken into account in the element with help of limit friction force in each friction element which gradually reject the parallel springs. The developed element is able to simulate the stress-strain relation of reinforced shear walls during loading including the complex destructive phenomena of concrete cracking, interaction effects between steel and concrete, steel yielding and concrete crushing. The derived finite element has a significance and application in model simplification of concrete civil structures. Source

Furtner P.,VCE Vienna Consulting Engineers | Heim M.,Getzner Werkstoffe GmbH
SHMII-5 2011 - 5th International Conference on Structural Health Monitoring of Intelligent Infrastructure | Year: 2011

This paper is dedicated to the development of an innovative cable damper, which is a result of expertise from cable dynamics and bridge engineering well as from a manufacturer of damping materials and systems made available in close collaboration of Getzner Werkstoffe and VCE. The basic idea of the cable damper is the tailor-made design approach which considers the individual requirements based on the stay cable's geometry and required energy dissipation. For the achievement of the objective mentioned above the selected type of the cable damping device developed is an elastomeric damper using a material with high energy-absorbing properties and special damping characteristics. Source

The bridge object is part of the A1 highway and was constructed in 1959. It is composed of 18-spans (reinforced concrete) and has a total length of 240,45 m. While the bridge structure - related with the driving direction Salzburg - was removed (blown) in August 2010, the remaining structure (driving direction Vienna) was monitored in order to evaluate the impact of the blasting with regard to its structural safety and operability. The investigation was focused on the primary load-bearing structure (arch). Due to the fact that an initial dynamic measurement with BRIMOS® has been conducted already in 2005, the prevailing investigation (measurement 2010) could be configured more efficiently. Measurements at selected single bridge locations (HOT SPOTS) enabled a comprehensive documentation and quantification of the bridge's decisive structural behaviour and possible changes respectively. A direct comparison after 5 years of structural service life shows the progression of the measured structural resistance over time (bridge deck under the influence of traffic load and the bridge blasting). © 2011 Ernst & Sohn Verlag für Architektur und technische Wissenschaften GmbH & Co. KG, Berlin. Source

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