Pulled locking device for earthquake isolation rubber bearing

Abstract

The invention relates to a pulled locking device for an earthquake isolation rubber bearing. The pulled locking device comprises two installation steel plates (1), fastening pieces, splicing nuts (5) and a pull rod (6). The two installation plates (1) are placed at the upper portion and the lower portion of the rubber bearing respectively and connected with the rubber bearing through bolts. Vertically-corresponding reserved holes are formed in corners of the installation steel plates (1). The fastening pieces are fixed to the upper and lower installation steel plates (1) through the reserved holes. The fastening pieces are connected with the pull rod (6) through the splicing nuts (5). When affected by small-earthquake loads, the whole pulled locking device does not displace under the action of the pull rod (6), a small angle is generated at the top end of the pull rod (6), and the pull rod (6) is pulled; when affected by loads of large-earthquake or loads of larger-earthquake, the pull rod (6) is pulled off, the rubber bearing plays a role in energy dissipation, the bearing displaces horizontally, and secondary control is achieved.

Description

technical field [0001] The invention relates to a tension locking device used on a vibration isolating rubber bearing. Background technique [0002] Under the action of earthquake or other loads, in order to consume energy and reduce damage to the superstructure, the existing vibration isolation rubber bearings often generate large displacements in the horizontal direction. Although the seismic isolation (vibration) effect is remarkable, the bearing is relatively soft in the horizontal direction, and may also have a certain displacement under the action of small earthquakes and moderate earthquakes, that is, the seismic response of the isolation bearing cannot be controlled in stages. Therefore, the existing vibration isolation rubber bearings have certain limitations in the application of some special buildings with strict displacement requirements. SUMMARY OF THE INVENTION [0003] In view of the defects existing in the prior art, the purpose of the present invention is...

AI Technical Summary

Problems solved by technology

Although the isolation (vibration) effect is remarkable, the horizontal direction of the support is relatively soft, and a certain displacement may occur under the action of small earthquakes and moderate earthquakes, that is, the seismic response of the isolation support cannot be controlled in stages

Therefore, the existing seismic isolation rubber bearings have certain limitations in the application of some special buildings with strict displacement requirements.

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