Bridge shock absorber

A technology of shock absorbers and bridges, which is applied in the direction of bridges, bridge parts, bridge construction, etc. It can solve the problems of increasing the difficulty of maintenance and replacement of bearings, and the lack of functions to prevent beams from slipping, so as to improve convenience and good performance. The effect of energy consumption and shock absorption, reducing the difficulty of construction
CN112962425APending Publication Date: 2021-06-15BEIJING UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING UNIV OF TECH
Publication Date
2021-06-15

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Abstract

The invention discloses a bridge shock absorber which comprises an inner hoop, an outer hoop, a shock absorption support and a flange ring, and the inner hoop and the outer hoop are each formed by splicing a left semi-arc piece and a right semi-arc piece; the left semi-arc piece of the inner hoop and the left semi-arc piece of the outer hoop are connected into a whole through the shock absorption support; the right semi-arc piece of the inner hoop and the right semi-arc piece of the outer hoop are connected into a whole through the shock absorption support; and the flange ring is vertically fixed to the top end of the outer hoop. The invention discloses a bridge shock absorber which can meet the requirement for support replacement, has a good energy dissipation capacity, can respond to 360-degree displacement of a beam body, enables sliding piers to participate in cooperative shock resistance, is beneficial to preventing the beam body from sliding off and is suitable for new construction and seismic reinforcement of railway bridges, highway bridges, urban viaducts and various continuous beam bridges.
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Description

technical field

[0001] The invention relates to the technical field of bridges, in particular to a bridge shock absorber. Background technique

[0002] In order to reduce the seismic response of continuous girder bridges and improve the seismic performance of continuous girder bridges, shock-absorbing measures such as shock-absorbing and isolating bearings and viscous dampers are usually used for continuous girder bridges, such as lead rubber bearings, viscous dampers, etc. . However, for the existing pier-column continuous girder bridge, the beam body needs to be jacked up when using shock-absorbing and isolating bearings for aseismic reinforcement, which is inconvenient for construction. For new bridges, not only the use of shock-absorbing and isolating bearings will face the problem of difficult maintenance and replacement, but the use of viscous dampers will also increase the difficulty of bearing replacement.

[0003] On the other hand, the seismic capacity of convent...

Claims

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