Design, Analysis and Development of Super Structural System.

1964~1966 Military Installation Official, The Army(ROTC #2)
1975~1977 Research Associate, University of California, Berkeley, USA
1977~ Associate Professor, Professor of Hanyang University
1980~1985 Structural Design of 63 Building
1981~1982 Member, Planning Consultative Committee, MOST
1984~1985 Visiting Professor,Tokyo University, Japan
1994~1999 Vice President of R&D, Hanyang University
1995~ Trustee, The Korea Federation of Science and Technology Societies
1996~1998 President, The Computational Structural Engineering Institute of Korea
2001~2002 President,Council of Chairs of SRC/ERC
2001~2002 President,Korean Concrete Institute
2004~2004 Dean,Graduate School of Hanyang University
2004~ President of Architectural Institute of Korea
2004~ Co-President of Federation of Institutes of Korean Architects(FIKA)
2004~ Vice President, Hanyang University

1995 Research Award, The Architectural Institute of Korea(AIK)
1997 Order of National Service Merit, President of Republic of Korea
1997 Research Award, The American Concrete Institute(ACI)
1999 Contribution Award, Computational Structural Engineering Institute of Korea
2000 Research Award, Korean Concrete Institute(KCI)