Prefabricated self-centering energy dissipation bracing with I-shaped inner tube and prestressed disc springs

Abstract

The invention relates to a prefabricated self-centering energy dissipation bracing with I-shaped inner tube and prestressed disc springs. An outer tube left retainer and an outer tube right retainer are fixed to upper and lower inner walls of an outer tube steel plate; the inner tube includes an inner tube middle HW shaped beam and inner tube bilateral I-shaped beams welded to two ends of the inner tube middle HW shaped beam; the parts of upper and lower flange outer sides of the inner tube middle HW shaped beam corresponding to the outer tube left retainer and the inner tube right retainer are fixedly provided with an inner tube left friction pad and an inner tube right friction pad respectively, a first disc spring and a second disc spring sleeve the inner tube bilateral I-shaped beams, a first disc spring left retaining plate and a first disc spring right retaining plate are arranged on two sides of the first disc spring, and a second disc spring right retaining plate and a second disc spring right retaining plate are arranged on two sides of the second disc spring. The prefabricated self-centering energy dissipation bracing with I-shaped inner tube and prestressed disc springs is of prefabricated type, is free to assemble, has reduced welding and accordingly better load-carrying capacity, and is low in processing cost and simple to mount.

Description

technical field [0001] The invention relates to the technical field of self-resetting energy-dissipating supports, in particular to an assembled I-shaped inner tube preloaded disc spring self-resetting energy-dissipating support. Background technique [0002] Earthquake is a major natural disaster faced by human beings for a long time. It is extremely destructive. The occurrence of earthquakes often causes huge economic losses and casualties, which are mainly caused by the collapse and destruction of buildings. Improving the seismic performance of structures is the most effective way to reduce economic losses and casualties after earthquakes and ensure people's normal life. In the traditional anti-seismic design of structures, the strength, stiffness and ductility of the structural members are mainly relied on to resist the input energy of the earthquake, but this approach will cause the cross-section of the members to be too large, making the structure too heavy and unecono...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an assembled I-shaped inner tube preloaded disc spring self-resetting energy-dissipating support, which can be assembled by using existing steel and bolts, less welding, and effectively dissipate earthquake input by using a friction device energy, and the excellent elastic deformation capacity of the disc spring, the support reset ability, stiffness and bearing capacity can be controlled by the combination of the disc spring, which makes up for the limited elastic deformation of the prestressed steel bar. At the same time, the disc spring does not need to be deformed It can be restored to the pre-deformation state after any treatment, making up for the shortcomings of shape memory alloys that need to be heated to restore their shape and the shortcomings of prestressed steel bars with small elastic deformation

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