Seismic Response of Connections Precast Concrete Structures under Seismic Load

Usage and advantage of precast reinforced concrete and produce to industry form in short time and being economical has been caused that prefabricated industry considered in all over the world. Connections of prefabricated component ison seismic performance in precast reinforced concrete and also factors like strength and ductility have effect in this structures. Performance of this structure is due this fact thatthe connections resistance is distinct from cast – in- place concrete building. Designing of precast reinforced concrete should be done in such ways that ensure their coherent behavior of structures.Structural systems can be adopt with performance of building frame or hinged connections or suitable braced and performance of moment resisting from with rigid connections. Framing in precast structures is due to connectionsof single vertical and horizontal to each other and changing them to rigid diagram against to lateral force. Integration of base in connections with precast member should be done by means ofreinforcement and limiting of stresses bound in connections area. Good performance of precast structure against lateral loads and upright loads depends to stability and rigid in connection area inporter system. Precast reinforced concrete has not good performance against lateral load due to hinged connection upon structure. The main reason is that there is weak connection between hingedconnection and their construction is messy and alsoother reason is administrative error and inappropriate choice of structural system. Lack of attention to these cases causes damage and destruction caused by the earthquake are in prefabricated structures.

کلیدواژه ها:

Precast reinforced concrete ، Hinged connection ، Rigid connection ، Rigid diaphragm ، Lateral loads