Seismic mitigation and isolation structure of bridge body

A technology of vibration reduction and isolation and beam body, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of inconvenient installation, difficulty in meeting the sliding requirements of bearings, insufficient bearing capacity, etc., and achieve the effect of prolonging the service life

CN113026544AInactive Publication Date: 2021-06-25台州市君益科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a seismic mitigation and isolation structure of a bridge body, a supporting plate is slidably connected in a mounting cover at the top of a base, the top of the supporting plate is symmetrically and fixedly provided with a plurality of arc-shaped steel plates, the tops of the arc-shaped steel plates are fixedly provided with the same fixing plate, and the fixing plate is slidably connected with the inner wall of the mounting cover. The top end of a supporting column fixedly mounted on the top of the fixing plate extends to the position above the mounting cover and is fixedly provided with a mounting plate, the inner wall of the bottom of the mounting cover is symmetrically and rotationally connected with rotating rods, the top ends of the rotating rods are rotationally connected with pressing rods, and the top ends of the two pressing rods are rotationally connected with the bottom of the supporting plate; Sliding covers are symmetrically and fixedly connected to the inner wall of the bottom of the mounting cover, sliding plates are elastically and slidably connected to the sliding covers, the bottom ends, rotationally connected with screws, of the sliding plates extend into the sliding covers and are in transmission connection with the inner walls of the sliding covers, and nuts are in threaded connection with the screws and are rotationally connected with rotating rods and pressing rods correspondingly. The seismic mitigation and isolation structure can realize three-stage seismic mitigation on a bridge plate. The bridge plate is well protected, and the service life of the bridge plate is effectively prolonged.
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Description

technical field

[0001] The invention belongs to the technical field of bridges, and relates to a shock absorbing and isolating structure of a bridge girder body. Background technique

[0002] Earthquake is one of the natural disasters that pose a great threat to human beings. Once bridges and other building structures are damaged during an earthquake, it will pose a serious threat to the safety of human life and property, and will also lead to secondary disasters. As a reasonable and effective anti-seismic means, anti-seismic technology has been more and more used in bridges and other building structures. Among them, the anti-seismic bearing is one of the most widely used anti-seismic devices. At present, the more common anti-vibration bearings include lead core rubber bearings, high damping rubber bearings, friction pendulum bearings and steel damping bearings.

[0003] Lead core rubber bearings have insufficient bearing capacity and poor durability, causing pollution to t...

Examples

Embodiment Construction

[0028] Preferred embodiments of the present invention will be described in detail below.

[0029] The reference signs in the drawings of the specification include: 1 base, 2 installation cover, 3 support plate, 4 curved steel plate, 5 buffer rod, 6 connection box, 7 shock-absorbing cotton, 8 fixing plate, 9 support column, 10 connection groove , 11 connecting rod, 12 supporting rod, 13 buffer spring, 14 mounting plate, 15 sliding cover, 16 sliding plate, 17 buffer box, 18 screw rod, 19 push rod, 20 nut, 21 rotating rod, 22 pressure rod, 23 rack, 24 gears, 25 torsion springs, 26 connecting steel plates, 27 buffer hydraulic rods, 28 moving boxes, 29 return plates, 30 return springs, 31 sealing plates.

[0030] Such as Figure 1-5 The shock-absorbing and isolating structure of a bridge girder shown includes a base 1, a mounting cover 2 is fixedly installed on the top of the base 1, and a support plate 3 is slidably connected to the inside of the mounting cover 2, and the top of ...