Civil and Structural Engineering research group

Our research group has competence on design, analysis and testing of materials and structures. The current research and development activities in our group can be divided into concrete structures and technology, wind engineering and extreme loads, fatigue and structural integrity, and innovative building materials for roads.

Published Updated on
Facts
Professors

14 (Professor – 4, Assoc Professor – 5, Adjunct Professor – 4, University lector – 1)

Postdocs and PhDs

6

Running projects

13

Check out the studies in our department!

Concrete structures and technology

Concrete structures and technology

We work on a wide range of topics on concrete structures in onshore and offshore including cracking behaviour of reinforced concrete structures, condition assessment and control of structures, environmentally friendly building materials, optimization and digitalization of structural engineering applications and low carbon concrete.

Cracking behaviour of reinforced concrete structures
Concrete structures and technology

Cracking has a significant impact on the durability of reinforced concrete structures causing high intervention and/or repair costs. There are numerous causes for initiating the cracking over concrete surfaces. During our research, cracking behaviour of reinforced concrete structures due to service load is investigated using experimental campaign and nonlinear finite element simulations.

Condition assessment and control of structures

Condition assessment of the existing structures covers the area of inspection, detail assessment and repair/rehabilitation of the structures. Reinforced/pre-stressed concrete structures are deteriorated with time due to different deterioration mechanisms. The corrosion of the rebars/pre-stressing tendons is one of the deterioration due to chloride ingress and carbonation. Our research team studies the condition of the reinforced concrete structures which are subjected to chloride ingress and carbonation. We also conduct research on the strengthening of reinforced concrete beams using CFRP composites.

Green transition; environmentally friendly building materials and applications
Concrete structures and technology

The practice of linear material consumption has been increasing due to the growth of the economy, population, and urbanization. As a result, substantial waste is released to the environment. A significant amount of waste is dumped in landfill without an assessment of opportunities to convert it into valuable materials/products. We research on the potential use of industrial waste to make geopolymer concrete and the use of recycled fibre instead of commercially available steel fibres. We collaborate with internally with Department of Energy and Petroleum Engineering, UiS and externally with Manchester University, UK and University of Hokkaido, Japan to develop geopolymers for construction industry.

Optimization and digitalization structural engineering applications
Concrete structures and technology

Generative design, machine learning methods and Building Information Modelling (BIM) help to optimize the structural design. We investigate how to integrate different digital tools to optimize the structural design effectively and efficiently.

Development of low carbon concrete and damage evolution due to cyclic loading
Concrete structures and technology

Offshore gravity-based structures and in particular wind turbine foundations are subjected to cyclic loading during its service life. We conduct research on the durability and mechanical properties of the low carbon concrete by considering possible damage evolution in the concrete under cyclic loading. During this research, we collaborate internally with Department of Energy and Petroleum Engineering, UiS and externally with Manchester University, UK.

Contact:

Wind Engineering and Extreme Loads

We work with a broad range of dynamic effects on structures, especially the effects of natural wind on slender structures and the effects of impact loads due to collision, explosion etc.

Wind effects on structures
Structural dynamics

We work with the modelling of wind loads due to turbulence and the wind-induced response of long-span bridges. We integrate the computational and the experimental studies. Since 2013, we have been developing the full-scale wind and vibration laboratory at the Lysefjord bridge outside of Stavanger, with support from the Norwegian Publica Roads Administration. The measurements address the knowledge gaps on wind characteristics in a complex fjord environment and the full-scale bridge aerodynamics. The analyses of the recorded ambient vibration data include identification of built-in structural dynamic properties, heavy vehicle tracking etc. The monitoring system is described here.

Lysefjordbrua

In collaboration with our research partners (Technical University of Denmark, University of Bergen and NORCE) we have pioneered applications of lidar wind measurements at a bridge site. We use optical wind sensing to map the undisturbed wind turbulence and to monitor the wind-bridge interaction in the areas inaccessible by traditional sonic anemometry.

Our related work concerns aerodynamics of bridge stay cables in the so-called drag-crises range and a study of the rain-wind induced stay cable vibrations.
We also work with wind load and response modelling of floating bridges and offshore wind turbines.

Structural dynamics
Extreme loads on structures

Our work aims to understand the dynamic behaviour of structures under extreme loads and to design the structures against such loads. Our research covers a wide range of civil and marine structures including bridges, tunnels, wind turbines, ships, pipelines, and offshore platforms. We mainly work on blast and impact loads on structures, and structural response under multi-hazards through experimental tests and numerical simulations.

We also investigate material behaviours under dynamic loads. Concrete and steel materials are the main focus while other materials including FRP, timber, aluminium, and glass are also of interest. More information: https://www.ux.uis.no/~yanyan19/

Lysefjordbrua

Contact:

Fatigue and structural integrity

Fatigue and structural integrity

We work on a broad range of topics including assessment of structures and life extension, sustainable and environmentally friendly structures and structural integrity for renewable energy.

Some of the members of structural engineering group are active researchers of the fatigue and structural integrity research group Fatigue and Structural Integrity Group (FSIG-UiS).

Assessment of structures and life extension
Fatigue and structural integrity

Responsible authorities for onshore and offshore structures are paying significant attention to the ageing issues, as most of these structures worldwide are reaching or have already exceeded their design life. Replacement of all of these is challenging, due to environmental and economic issues during both the decommissioning and the new construction. The cost for strengthening and extending the lives of bridges are less than 5% of the total cost for new constructions. Fatigue and environment-assisted (EA) degradation are identified as the main ageing mechanisms for these structures (i.e. fatigue & corrosion damages of offshore structures: 25% and 8% respectively; fatigue & EA damages of bridges in Europe: 38% and 32% respectively).To fill the research and knowledge gaps in this area, we are doing research on, (i) Structural integrity management and life extension guidelines, (ii) Improvement of stress-life approach and multiaxial fatigue damage models, (iii) Practices for the assessment of defects in pipelines and fracture control concepts, (iv) development of fatigue damage assessment and modelling techniques/tools for structural details, (v) development of frameworks for recognizing and analyzing the effect of EA damages of steels structures, (vi) Investigation of hydrogen embrittlement susceptibility of structural steel, (vii) Improvement of digital twin-based process for facilitating and optimizing the process of structural integrity assessment.

Fatigue and structural integrity
Sustainable and environmentally friendly structures

The steel and concrete industry require quite a lot of energy which significantly affect the global CO2 emissions. Therefore, alternative building materials are currently of high importance for environmentally friendly structures. Timber, Aluminum and composites are few of the possible green building materials and is currently used in green building projects. To fill the research and knowledge gaps related to integrity aspects within this area and the competence development in the industry, our team is currently working on (i) structural integrity assessment of additively manufactured materials and components, (ii) fatigue assessment of long-span bridges with an orthotropic aluminium deck, (iii) assessment of load capacity and structural response of timber-concrete composite components. Recently started to conduct research on (i) developing the guidelines for re-using offshore steel for structural components of environmentally friendly buildings.

Fatigue and structural integrity
Structural integrity for renewable energy

Our research group recently started to conduct research and development activities related to green energy sector based on existing research competences in our group within fatigue and fracture of offshore pipelines and EA cracking of structures. The new topic areas are (i) Integrity assessment of offshore pipelines for Norwegian carbon capture and storage and hydrogen transport, (ii) studying the fatigue life assessment of a wind turbine substructure due to the effect environmental assisted cracking.

Contact:

Fatigue and structural integrity

Innovative building materials for roads

Innovative building materials for roads

We work on a broad range of topics including innovative binder and maintenance of transport infrastructures.

Innovative building materials for roads

Roads and railways encircle the world in extended networks which become larger each year and their fulfilment needs a remarkable quantity of materials, both in terms of aggregates and binders. Construction aggregates are resources mainly represented by sand, gravel or crushed rock that are mined or quarried to be employed as building materials. A binder is a product, either natural or refined, that is applied to let the aggregate particles stick together and thus improve their mechanical resistance and durability. Binders are available in liquid, semi-solid or pulverized forms and have different origins. The main research activities at UiS revolve around the testing of innovative binder solutions to improve the construction and maintenance of transport infrastructures.

Contact: Associate professor Diego Maria Barbieri

Our research and development activities contribute to reach UN sustainable development goals

Projects

  • BIM4PLACEMENT – European key competences in building and construction
  • TEAL2.0
  • New Cementitious Material for Oil Well Cementing Applications – SafeRock
  • Norhed II: Enhancing Lean Practices in Supply Chains: Digitalization
  • LIKE, Lidar Knowledge Europe, H2020-MSCA-ITN-2019, Grant no. 858358.
  • MARINET2 Marine Renewable Infrastructure Network for Enhancing Technologies 2, H2020, Grant no. 31084.
  • LOWT, Large Offshore Wind Turbines: structural design accounting for non-neutral wind condition, NFR FRIPRO 2021, no. 325294.
  • Wind Effects on Bridges, research project supported by the Norwegian Public Roads Administration, 2019.
  • Ship collision with floating bridges, research project supported by the Norwegian Public Roads Administration, 2019.
  • Risk acceptance criteria for ship collision with floating bridges, research project supported by the Norwegian Public Roads Administration, 2020.
  • Aquaculture Living Breakwater for Coastal Protection and Sea Decarbonization, EEA AquaBreak (Bluegrowth Programme), project number EEA.BG.CALL2.026.2021, 2022.
  • Fatigue capacity of suspensions bridges with an orthotropic deck in steel or aluminium, NFR, prosjektnummer: 311895, 2020.
  • Upgrade and development of the educational offers in the areas of building information modelling and renewable energy sources, EEA grants, EOG/19/K3/W/0029, 2019.
  • Fatigue testing of AL bridge deck details/joints (tests associated with AluBridge innovative Project), project funded by the Norwegian Public Roads Administration, project number at TN: OF-10929, 2022.

Researchers

Førsteamanuensis
51832387
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor
51832177
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor
51831666
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Førsteamanuensis
51831071
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor II
51832902
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Førsteamanuensis II
51832372
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor emeritus
51832143
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor
51831914
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor II i levetidsforl. av offshore
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Førsteamanuensis
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Førsteamanuensis
51831909
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Universitetslektor
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Professor II
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Universitetslektor
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science

PhD students and postdocs

Stipendiat
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Ekstern
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Doktorgradsstipendiat
Stavanger
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Ekstern uten utbetaling
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Postdoktor
51831049
Faculty of Science and Technology
Department of Energy and Petroleum Engineering
Stipendiat
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science

Lab engineers

Senioringeniør
51831920
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM
Overingeniør
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM
Senioringeniør
51831226
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM
Overingeniør
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM
Senioringeniør
51831383
C364
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM
Sjefingeniør
51831919
Faculty of Science and Technology
Department of Mechanical and Structural Engineering and Materials Science
Laboratory IMBM

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