The invention relates to a self-resetting-multi-stage plate type friction energy dissipation support assembled with spiral steel springs, and belongs to the
civil engineering industry. A self-resetting-multistage plate type friction energy dissipation support assembled with a spiral steel spring is characterized by comprising two parts, namely an energy dissipation
system and a self-resetting
system, and the energy dissipation
system and the self-resetting system are connected through a connecting rod. The energy dissipation system comprises a fixing plate, an outer baffle I, an outer friction plate, an inner sliding plate, a friction plate I, a friction plate II, a pressure bearing plate and an inner connecting plate. The self-reset system comprises a spring base plate, a spring set, an outer baffle II, an outer baffle III, a connecting rod, an outer sliding plate and an outer connecting plate. Slotted holes are formed in the outer
steel plates, so that bolt pre-tightening force can be conveniently applied; the two ends are connected through pin shafts, and on-site installation is convenient. A friction plate I is arranged between the outer friction plate and the inner sliding plate, a friction plate II is arranged between the pressure bearing plate and the inner sliding plate, and multi-stage
energy consumption can be achieved by placing the pressure bearing plate and the friction plate II into strip-shaped holes with different lengths in the outer friction plate. The self-resetting system adopts a combined spiral steel spring, has larger rigidity and compression height, and can meet the requirements of larger
stroke and resetting rigidity. The invention provides a self-resetting-multistage plate type friction energy dissipation support assembled with a spiral steel spring to solve the problems that an existing friction
damper is large in
residual deformation and single in energy dissipation mechanism, and an existing self-resetting system adopts disc springs, prestressed tendons, shape memory alloys and the like, so that prestress loss exists, the working mechanism is complex, and the temperature is sensitive. The shock-absorbing and energy-dissipating device is simple in structure, convenient to install, multi-stage in energy dissipation, small in
residual deformation, capable of achieving self-resetting and capable of meeting shock-absorbing and energy-dissipating requirements and self-resetting function requirements of different structures.