PROGRESS OF INVESTIGATION ON SEISMIC BEHAVIOR OF PRECAST CONCRETE FRAME STRUCTURES( Ⅰ) : STUDY OF JOINT PROPERTY

The importance of study of seismic behavior of connection joints in precast concrete frame structures is described． Progress of investigation on seismic behavior of connection joints in precast concrete frame structures is introduced，including prestressed splicing joints; assembled monolithic joints; assembled joints etc． Seismic behavior of different joints is studied． The calculation models of different connection joints are introduced． The design code and design method of connection joints at home and abroad are also introduced． It is suggested that much attention should be paid to future research on the seismic behavior and construction measures of energy dissipation connection joints．