A basin-type sliding friction-roller rolling friction combined shock isolation bearing

Abstract

The invention discloses a basin type sliding friction-rolling shaft rolling friction combined shock isolation bracket. The shock isolation bracket comprises an upper bracket plate, a middle slide plate, a lower bracket plate, a basin type bracket core positioned between the upper bracket plate and the middle slide plate, and a rolling shaft positioned between the middle slide plate and the lower bracket plate; the upper surface of the upper bracket plate is a plane, and the lower surface is a plane; a stainless steel plate is arranged on the bottom surface of the upper bracket plate; the middle slide plate is positioned between the upper bracket plate and the lower bracket plate; the top surface and the bottom surface of the lower bracket plate are both planes; the basin type bracket core is arranged between the upper bracket plate and the middle slide plate; a rolling shaft is a cylinder; and the section is circular. The shock isolation bracket has the following advantages: the shock isolation bracket is smaller in friction force in the rolling direction of the rolling shaft; the friction force is adjustable; and in another direction, the basin type bracket can slide after overcoming the friction force. The shock isolation bracket integrates the advantages of the rolling friction and a basin type rubber sliding bracket, and realizes the functions of prolonging the structure period, dispersing the earthquake energy and reducing the structure earthquake response.

Description

technical field [0001] The invention relates to a shock-isolation support for buildings and bridge structures, in particular to a basin-type sliding friction-roller rolling friction combination shock-isolation support. Background technique [0002] Earthquake is one of the common disasters on the earth, which often causes the collapse of buildings and bridge structures, and has a significant impact on economic and social development. Simply relying on improving the stiffness of structures to resist earthquake disasters is not only uneconomical, but also may increase the seismic force, which cannot really achieve the purpose of earthquake resistance. The introduction of seismic isolation technology in the seismic design of buildings and bridge structures can enable the isolation device to achieve the purpose of prolonging the structural period, consuming seismic energy, and reducing structural response under the premise of meeting the functional requirements of normal use. ...

AI Technical Summary

Problems solved by technology

The main disadvantage of the rubber bearing is low tonnage and poor aging resistance; the disadvantage of the sliding friction bearing of the ball joint is that the sliding friction is large, and it is necessary to add a tetrafluoroethylene plate to reduce the friction coefficient

Images