1988-

International Association for Shell and Spatial Structures【Member】

1992-2000

ASCE Stability Committee 【Member】

1996-

The Chinese Institute of Civil and Hydraulic Engineering 【Board of Directors】

1997-

The R.O.C. Society of Theoretical & Applied Mechanics 【Board of Directors】

1998-2000

Chinese Society of Structural Engineering 【President】

1998-

IASS WG 13 on Numerical Methods in Shell and Spatial Structures 【Chair】

1999-

General Council, Asian Pacific Association for Computational Mechanics【Member】

2001-

The Chinese Institute of Engineers 【Board of Directors】

2001-

Asian Institute of Intelligent Buildings【Honorary Advisor】

2002-

Executive Council, Int. Association for Shells and Spatial Structures (IASS) 【Member】

2003-

Technical Activities Committee, IASS【Chair】

2006-

Executive Council, Asian Pacific Association for Computational Mechanics【Member】

2006-

International Association of Computational Mechanics【Member】

2007-

Association of Computation Mechanics Taiwan【Chair】

1991-1995

Bulletin of the NTU College of Engineering 【Chief Editor】

1993-

International Journal of Structural Engineering and Mechanics (Techno Press) 【Editorial Board】

1995-

Engineering Structures (Elsevier)【Editorial Board】

1998-2001

Civil Engineering 【Chief Editor】

1998-2000

Journal of the Chinese Institute of Civil and Hydraulic Engineering【Chief Editor】

1998-

Advances in Structural Engineering - An International Journal (Multi-Science Publication) 【Editorial Board】

1999-

Engineering Mechanics (CSTAM), 【Editorial Board】

2000-

Computational Structural Engineering, an International Journal (CSEI)【Editorial Board】

2001-2004

Mechanics of Advanced Materials and Structures (Taylor & Francis)【Editorial Board】

2001-

Spatial Structures, Zhejiang University【Editorial Board】

2001-

International Journal of Structural Stability and Dynamics (World Scientific)【Editor-in-Chief】

2002-

Finite Elements in Analysis and Design (Elsevier)【Editorial Board】

2002-

Chinese Journal of Computational Mechanics, CSTAM【Editorial Board】

2004-

Journal of IASS【Editorial Board】

2005-

International Journal of Advanced Steel Construction, HKiSC【Editorial Board】

2005-

International Journal for Computer Methods in Engineering Sciences and Mechanics【Editorial Board】

2006

Bridge Magazine【Consultant】

2006-

IES Journal A: Civil and Structural Engineering【Editorial Board】

2007-

Interaction and Multiscale Mechanics, an International Journal【Editor-in-Chief】

2007-

Journal of Sound and Vibration【Editorial Board】

2007-

The Open Civil Engineering Journal【Editorial Board】

1995-1996

Preparatory Office for High Speed Rail Bureau, Ministry of Transportation and Communication【Technical Consultant】

1998

Zhonghe Line of Taipei Mass Rapid System【Final Reviewer】

1999

Xindian Line of Taipei Mass Rapid System【Final Reviewer】

2001-2003

Technical Committee, Public Construction Commission, Executive Yuan【Member】

2003-2006

Taipei City Government【Consultant】

2005

Review Team for Steel Temporary Bridge of Snow Mountain Tunnel, Executive Yuan【Chair】

2006

Snow Mountain Tunnel (with 12.9 km) of National Freeway No. 5【Final Reviewer】

2006

Final Review of Civil Works for operation, Taiwan High-Speed Railways, Ministry of Transportation and Communications【Chair】

2006

Ad hoc Committee for Rehabilitation of Snow Mountain Tunnel Due to Watering, Ministry of Transportation and Communications【Chair】

2007-2008

Economic Development Council, Taipei City Government【Member】

2007-2008

Taipei City Government【Consultant】