SEISMIC BEHAVIOUR AND DESIGN OF REINFORCED CONCRETE STRUCTURES FOR EARTHQUAKE RESISTANCE

摘要

It is possible to design a structure so that it has features which will ensure the most desirable behaviour when loaded into the post-elastic range during a severe earthquake. The rational approach for achieving this aim is to choose the most suitable mechanism of post-elastic deformation and to ensure by appropriate capacity design procedures that yielding will only occur in the chosen manner. In seismic design this means taking into account the possible flexural overstrength of the yielding regions, the effects of higher modes of vibration, and the direction of seismic loading. The regions that are chosen to yield are then detailed for adequate ductility. A description of capacity design rules for reinforced concrete structures, so designed in New Zealand are presented.