CEN/TC250/SC3. Convenor Eurocode 3, Part 4-3 "Pipe-lines"

ISOPE - International Society of Offshore and Polar Engineers

  • Member of the Board of Directors
  • Member of the Technical Program Committee, Session organiser
  • Member of the Awards Committee

NEN - Dutch Standards Institution

  • Member of the Dutch code writing committee on pipelines
  • Member of the Dutch code writing committee on steel structures for buildings

ECCS - European Convention for Constructional Steelwork

  • Former chairman of TWG 10.5: "High strength steel and welding"

COST - European Co-operation in the field of Scientific and Technical research

  • National representative for the COST-C12 Action: Improvement of building’s structural quality by new technologies

IIW - International Institute of Welding

  • Member of Commission XV: Fundamentals of design and fabrica-tion for welding
  • Chairman of XV-A: Analysis of Statically Loaded Welded Components
  • Member of Commission XIII: Fatigue of Welded Compo-nents and Structures

NIL - Netherlands Welding Institute

  • Member of the Program Committee and Examinations Committee of the "European Welding Engineer" education

Staalbouwkundig Genootschap, Rotterdam

  • Member of committee TC10 on Structural Steel Connections