The invention relates to a two-stage energy dissipation
assembly type RC frame joint with a beam-falling-prevention device. The two-stage energy dissipation
assembly type RC frame joint comprises a prefabricated concrete column, built-in beam-falling-prevention dampers fixed in a prefabricated concrete composite superposed beam, a built-in compression resistant
damper, a steel cable and an end steel plate, wherein the built-in compression resistance
damper, the steel cable and the end steel plate are fixedly arranged on lower column channel steel; the built-in beam-falling-prevention dampers in a left beam and a right beam are connected through the steel cable; the end steel plate is arranged in the middle of the steel cable; the built-in beam-falling-prevention dampers and the built-in compression resistant
damper are fixed; the reserved longitudinal bars of a lower
precast concrete column and the reserved longitudinal bars of an upper
precast concrete column are connected through
steel bar sleeves; and the longitudinal bars on the upper portion of the beam penetrate through beam embedded stirrups to complete concrete pouring. The defects that an existing
assembly type beam-column joint is complex in site construction procedure, and the anti-seismic effect of an assembly type joint is poor are overcome. The
energy consumption forms are diversified, each memory
alloy column and compression resistant rubber in the built-in compression resistant damper consume energy in the first stage, the built-in beam-falling-prevention dampers consume energy in the second stage, and therefore dangerous situations such as beam falling and the like of the beam-column joint can be prevented.