Professional Licences
Prüfingenieur für Baustatik (Certified Checking Engineer), Germany.
Registered Professional Engineer (P.E.), California, USA.
Committee and Academy Work
Member of the ASCE SEI Disproportionate Collapse Standards and Guidance Committee; chairman of the Terminology and Procedures Sub-Committee
Member of the Post-Tensioning Institute (PTI ) Committee on Cable-Stayed Bridges.
Visiting Professor at the Korea Bridge Design and Engineering Research Center (KBRC) at Seoul National University (SNU).
Associations
International Association for Bridge and Structural Engineering (IABSE).
International Association for Bridge Maintenance and Safety (IABMAS).
American Society of Civil Engineers (ASCE).