The approach of design and research engineers to the use of prestressed concrete in primary seismic resistant structural elements is reviewed. Some results of recent research into the ductility of prestressed concrete members and the inelastic seismic response of prestressed concrete frames are presented. Also, the principles and recommendations of
the FIP-CEB and others for seismic resistant design are given and current New Zealand
design practice is summarised. Finally, the question of suitable load factors for pre-stressed concrete structures is discussed.