Structures - Statens vegvesen Engineering People Prof. Karin Lundgren Concrete Structures...
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Structures Teknologidagarne 2013 Trondheim, 24 October Mario Plos Associate professor Structural Engineering [email protected]
Transcript of Structures - Statens vegvesen Engineering People Prof. Karin Lundgren Concrete Structures...
Structures
Teknologidagarne 2013
Trondheim, 24 October
Mario Plos
Associate professor
Structural Engineering
Architecture
Structures
at Chalmers
Applied
Mechanics Building
Materials
Building
Physics
Geo
Engineering
Construction
Management
Structural Engineering
Steel &
Timber
Structures
Concrete
Structures
Education in Structural Engineering
• 3 main programmes – Civil Engineering (5 years)
– Building and Civil Engineering (3 years)
– Architecture and Engineering (5 years)
• Master programme – Structural Engineering and Building Technology
Structural
systems
FEM basics*
Timber
engg.
FEM
structures *
Geo-
technics*
Structural
concrete
Structural
design *
Concrete
structures
Steel
structure
Structural
dynamics*
Building technology
and services engineering
Material
performance
Heat, moisture
engineering
Sustainable building
- competition*
Sound &
vibration*
Build. acoust &
commun noice*
Building
physics
Indoor climate
and HVAC
Master’s Thesis s fy>
Mpl
plpl
Structural Engineering
People
Prof. Karin Lundgren Concrete Structures (reinforcement corrosion, new reinforcement types …)
Prof. Robert Kliger Timber Structures
Prof. Björn Engström Concrete Structures, Vice head of department
Associate prof. Mohammad Al-Emrani Steel structures, FRP structures
Associate prof. Mario Plos Concrete Structures, Head of division
4 (part-time) professors
6 researchers/teachers (PhDs)
13 PhD students
1 research engineer
Structural Engineering
Research profile
• Design and performance of load carrying structures for bridges, buildings and civil engineering structures
• Modelling, analysis and simulation of structures, components and materials
• Development of analysis methods and material models
• Assessment and upgrading of existing structures
• Structures with new materials and combinations of materials
From details to entire structures…
Research methodology
Strategic combination of theoretical analyses and experiments for
understanding of the mechanical behaviour of structures
Understanding of mechanical behaviour
Safe, sustainable and effective structures
Experiments
Engineering knowledge
Hypothesis
- Conceptual model
Theoretical
modelling
Laboratory test Nonlinear FE-analysis Optical measurements
Laboratory tests, FE-analysis
and advanced measurement techniques
Nonlinear FE-analysis Laboratory test
Laboratory and testing resources
Advanced measurement techniques
Full-scale testing
Climate room
and climate
chamber
Material
characterization Component testing
FE-analysis and simulation
Bridge assessemnt
Projectile impact
Multi-scale modelling Damage assessment
LS-DYNA ®
Major Scientific Achievements
Concrete Structures
• Material modelling of concrete
–Fatigue
–Blast and impact
• Modelling of reinforcement
corrosion
–Bond and splitting
–Flow of corrosion products
• Safety formats for non-linear analysis
Major Scientific Achievements
Steel and Timber Structures
• FRP composites for strengthening and repair
–Design methods and models
–Pre‐stressed FRP laminates
• Steel structures
–Fatigue design with local approaches
–Post-weld treatment
–Local stability and buckling
• Timber bridges
–Stress laminated bridge decks
Current research
Existing concrete structures
• FEM for design and assessment
of bridges
– Bridge deck slabs
• Effects of reinforcement
corrosion
– Naturally corroded reinforcement
– Effects of fibres
• Multi-scale modelling
of chloride ingress
Steel structures
• Fatigue design and assessment of bridges
– FEM based methods
– Post-weld treatment
Current research
Timber structures
• Timber bridges
– Stress laminated
timber decks
• In-situ assessment
– Non-destructive techniques
Current research
Vt N
( Vt ) ( N )
( Mt ) ( N )
+ -
NMt
A
B
A
B
A
B
A
B
N N
NN
Effective design and construction
• Urban Infrastructure Construction
– EU project Pantura
• Effective industrialised bridge
construction
Current research
Current research
Concrete structures with new
reinforcement materials
• Fibre reinforced concrete (FRC)
– FRC in bridges
– EU-projekt TailorCrete
• Textile reinforced concrete (TRC)
– Project “Homes for Tomorrow”
Fibre reinforced polymer (FRP) bridges
• Strengthening with bonded composites
– Durability and long-term performance
– Prestressed composites (Pantura)
• FRP bridges
– FRP bridge decks (Pantura)
– Sweden’s first road FRP bridge
Current research
Structures subjected to explosions
• Blast and fragment impact
• Novel material model for concrete
– Extension to fibre reinforced concrete
• Recommendations for practice
Current research
Our research vs. challenges?
A.Advanced predictive infrastructure performance proc.
• Novel materials and structures
• Industrial design and construction
• Service life prediction / deterioration models
B.Enhanced durability and life-time extension
• Cost effective strengthening
• Innovative upgrading
• Structural assessment
F.Resource and energy efficiency… (Eco-design)
• Resource efficient and sustainable structures
• Improved assessment and strenghtening
Project proposals
Novel materials and structures
• FRC and UHPFRC for improved durability
• FRP bridge decks
– Integrated de-icing and energy storage
• Ultra light sandwich steel decks
• New combination of materials
– FRP and TRC sandwich decks
– Timber and FRP composite bridges
• Innovative bridge design solutions
– Ultra-light railway bridges for high speed trains
– Lightweight temporary bridges
Lightweight concrete
Infused FRP plate
Woven textile
Project proposals
Industrial design and construction
• Conceptual design
– Development of new structural solutions for straight crossing
– Development of solutions for repair and strengthening
• Industrial bridge construction
– IT-infrastructure for Information
management
UHPFRC
Project proposals
Extended Life for Existing Structures
• Strengthening and upgrading
– Pre-stressed FRP laminates
– Long-term performance of FPR
strengthening joints
– Upgrading with FRP decks
• Assessment of bridges
– Deteriorated concrete bridges
– FE Model updating
– Structural safety assessment
– Condition and service life
assessment of timber bridges
Structures at Chalmers
Conclusions
• Well established and successful research environment
• Modern research methodology
• From details to entire structures
• From theoretical modelling to engineering applications
• Research driven by urge for safe, sustainable and
effective structures
• National and leading international cooperation partners
