FINITE ELEMENT MODELING OF CONCRETE BEAM-COLUMN CONNECTIONS UPGRADED WITH STEEL PLATES

Performance of a reinforced concrete frame is highly dependent on detailing of the joint connections between its members, such as beams and columns. To have a good structural behavior, joints must show ductile behavior and designed to be as strong as members connected to them and designed based on the philosophy of strong column-weak beam. In the case of sever lacking ductility, strength or even rigidity of the connections, or having a weak column-strong beam, in the existing structures, there is a need for seismic upgrading of the connection. There are several ways for seismic upgrading of this type of connections. In this paper, using steel plates for seismic upgrading of Concrete Beam-Column connectionshas been investigated numerically. Some empirical results are used to verify the finite element approach. Analyses are conducted with the use of modeling methods including various numerical methods and material behaviors. The results from various methods are compared and the suitable model is proposed.

کلیدواژه ها:

Reinforced concrete ، Beam-Column Connections ، Steel Jacketing ، Finite Element Method ، Concrete Damage Plasticity