Enhancing Structural Capacity
|
Researcher - Azade Attari |
||
|
|
Institute: |
University College Dublin, Ireland |
|
Supervisor(s): |
||
|
Project Description: |
Reliability-based modelling of chloride-induced corrosion in reinforced concrete The goal of this project is to develop a new reliability analysis approach for time dependent deterioration through the incorporation of recent advances in concrete durability assessment and corrosion science. This will be achieved using a combination of laboratory testing, field testing and statistical analysis. |
|
|
|
||
|
Researcher - Andreas Ottosson |
||
|
|
Institute: |
Ramboll, Denmark |
|
Supervisor(s): |
Claus Pedersen (Ramboll) and Alan O´Connor (TCD) |
|
|
Project Description: |
Application of stochastic safety assessment techniques to advanced fatigue models The aim for this project is to provide a more realistic evaluation of the capacity of structures at the fatigue limit state compared to existing assessment codes. This is done by combining the principles of stochastic safety assessment, advanced structural capacity models and load models based on railway WIM data. Various load models and the influence of different fatigue variables are studied in order to investigate if correction factors can be used on existing load models in order to get a fatigue assessment with a resemblance closer to the one using load models based on WIM data. |
|
|
|
||
|
Researcher - Raelize du Plooy |
||
|
|
Institute: |
Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Nantes, France |
|
Supervisor(s): |
Xavier Dérobert, Sérgio Palma Lopes and Géraldine Villain |
|
|
Project Description: |
Development and combination of non-destructive electromagnetic evaluation techniques for assessing cover concrete condition prior to corrosion This research project shall address the development of specific electromagnetic (EM) techniques and the design of a combined methodology. The EM techniques to be studied are: DC-Resistivity imaging (Electrical Resistivity Tomography, ERT), frequency domain capacitive mapping (intermediate frequency spectrum) and time domain Ground Penetrating Radar (GPR) techniques. The corresponding EM observables are known to be significantly sensitive to various state parameters such as water content, density (porosity), water salinity and temperature. The first stage will concentrate on describing the relationships between the electromagnetic observables and the parameters having an influence on the initiation of a corrosion process (mainly: chloride and water contents), while the second stage will focus on the development and validation of EM mapping (imaging) methodologies. |
|
|
|
||
|
Researcher - Amir Hossein Sohrabpour |
||
|
|
Institute: |
ABM |
|
Supervisor(s): |
Mr. F. Hosseini (ABM) and Dr M. Long (UCD) |
|
|
Project Description: |
Soil Structure Interaction and its effects on designing concrete buried structures This project will seek to use some of new techniques to produce a new simple design method for the buried structures by considering the soil structure interaction effects. The displacement of full scale culvert during the backfilling process and also under live load will be monitored. The stiffness of backfill material by performing different in-situ tests will be measured. These information will be used to model the culvert in FE program which will be validated against laboratory experiments. |
|
|
|
||
|
Researcher - Hadi Kazemi-Kamyab |
||
|
|
Institute: |
Laboratory of Maintenance and Safety of Structures (MCS), Ecole Polytechnique Fédérale de Lausanne (EPFL) |
|
Supervisor(s): |
Prof. Dr. E. Brühwiler and Dr. E. Denarié |
|
|
Project Description: |
Thermo-Hygro-Mechanical Effects In UHPFRC-Concrete Composite Members The proposed research project would specifically provide fundamental information on the influence of (1) concrete substrate conditions (hygral interactions), (2) temperature (low monotonic temperatures and realistic temperatures) on early age volume changes (autogenous shrinkage, drying shrinkage) and stress development (restrained shrinkage) and other mechanical properties of a UHPFRC recipe from an early age up to 28 days. Therefore the objectives of this research are the following:
|
|
