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Commission 1

Performance and Requirements

This commission strives to enhance design and assessment strategies as well as support in making decisions for all kinds of civil engineering structures. The commission provides a forum for discussions on recent developments in the field of structural performance and safety highlighting key issues as follows:

Performance is regarded as a measurable result (either qualitative or quantitative) of the structural behaviour and properties within the whole life cycle.

Safety is understood as structural reliability against unwanted events in relation to the structures.

Requirements are defined as guidelines or the set of rules to comply with when dealing with design of new structures. It also involves decisions relevant to existing structures with respect to performance and safety.

Field of Activity
C1 deals with assessment of design loads (in service, environmental and accidental) on one hand and revealing material properties, structural robustness and resistance on the other hand. It discovers advanced numerical modelling and simulations for structural analysis and probabilistic design/assessment methods with appropriate treatment of uncertainties.

The commission tackles critical topics on structural performance and safety of buildings, bridges, tunnels, towers as well as special engineering structures, and covers its requirements, in the design phase and beyond.

The evaluation of structural performance under various actions, both man-made and environmental, includes analytical and experimental approaches for assessment of safety, durability and reliability, security and serviceability, availability and maintainability. C1 will incorporate lessons learned from practice, from collapses and from successes, in creation of applicable guidelines for maintaining structural performance.

Current Task Groups under Commission 1

TG1.1 Improving Seismic Resilience of Reinforced Concrete Structures
Chair: Andreas Lampropoulos, UK

TG1.2 Structures Design of Bridges against Fire Hazards         

Chair: Ignacio Paya-Zaforteza, Spain

TG1.3 Calibration of Partial Safety Factors for the Assessment of Existing Bridges
Chair: Alan O'Connor, Ireland 

TG1.4 Probabilistic Non-linear Finite Element Modelling – Reliability and Safety Formats
Chair: Alfred Strauss, Austria

TG1.5 Performance-Based Design Founded on Lessons from Bridge Failures
Chair: Andrei Sizikov, UK/Russia

TG1.6 Benefits for Practical Application of Risk and Reliability Considerations in Structural Engineering
Chair: Jochen Köhler, Norway

TG1.7 Sustainability-driven Bridge Engineering for Early Design Phases
Chair: Rasmus Rempling, Sweden

TG1.8 Design Requirements for Infrastructure Resilience
Chair: Nisrine Makhoul, France

TG1.9 Training and dissemination
Chair: Maria Pina Limongelli, Italy

TG1.10 Utilization of traffic data in research, design, and assessment of bridges
Chair: Alan O'Connor, Ireland

TG1.11 Design & Construction Techniques of Well (Caisson) Foundations
Chair: Alok Bhowmick, India

TG1.12 Liason with JCSS
Chair: Niels Peter Høj, Switzerland


Niels Peter Høj, Switzerland

Vice Chair
Ana Mandic Ivankovic, Croatia

Core Members
Oskar Larsson, Sweden
Heiki Lilja, Finland
Nisrine Makhoul, France
Maria Pina Limongelli, Italy
Joao Andre, Portugal                  André Orcesi, France


Andreas Lampropoulos, UK
Ignacio Paya-Zaforteza, Spain
Alfred Strauss, Austria
Andrei Sizikov, UK/Russia
Jochen Köhler, Norway
Rasmus Rempling, Sweden                        Alan O' Connor, Ireland
Alok Bhowmick, India

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8050 Zurich

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