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An electromagnetic anti-seismic anti-fall beam device suitable for bridge structures

A bridge structure, electromagnetic technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of waste, inability to solve the impact of bridges, non-working, etc., to achieve the effect of energy saving

Active Publication Date: 2021-06-18
CHONGQING JIAOTONG UNIVERSITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Under the action of strong earthquakes, relative displacement will occur between the upper and lower structures of the bridge. In order to limit the lateral displacement of the upper structure of the bridge, stoppers are usually set at both ends of the cover beam to prevent the beam from falling during the earthquake. , in order to ensure the life of the block, it is generally necessary to install an elastic energy-dissipating shock-absorbing device between the block and the main beam, and the shock-absorbing effect that the existing energy-dissipating shock-absorbing device can provide is fixed, for example In the prior art, the invention patent with the patent number of 201810134083.1 discloses an electromagnetic anti-drop beam device. The device has certain trigger conditions, and it will start working only after the trigger conditions are met. In the slight vibration, the device does not work, and it cannot solve the impact of frequent slight vibrations on the bridge structure, and as long as the device is triggered, the force provided by the device for pulling the main girder is the same regardless of the magnitude of the earthquake , which to a certain extent caused a certain waste of

Method used

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  • An electromagnetic anti-seismic anti-fall beam device suitable for bridge structures
  • An electromagnetic anti-seismic anti-fall beam device suitable for bridge structures
  • An electromagnetic anti-seismic anti-fall beam device suitable for bridge structures

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Embodiment 1

[0018] Embodiment 1: as attached figure 1 As shown, the present invention is an electromagnetic anti-seismic anti-drop beam device suitable for bridge structures, including a cover beam 1, the bottom of the cover beam 1 is provided with a pier column, and the top of the cover beam 1 is provided with a main beam 2 , The left and right ends of the cover beam 1 are provided with stoppers 3 compatible with the main beam 2, and an integrated structure is adopted between the stoppers 3 and the cover beam 1. An energy dissipation shock absorbing device 4 is arranged between the block 3 and the main beam 2 , one end of the energy dissipation shock absorbing device 4 is fixed on the block 3 , and the other end is fixed on the main beam 2 . The energy dissipation shock absorbing device 4 includes a support cylinder 5 horizontally arranged between the block 3 and the main beam 2, a vibration sensor 6 installed on the main beam 2, and a controller, the controller can be fixed on the cover...

Embodiment 2

[0019] Embodiment 2: On the basis of Embodiment 1, in order to facilitate the installation of the energy dissipation shock absorbing device 4, an adjustment support 18 is provided at the bottom of the support cylinder 5, and the adjustment support 18 is fixed on the top of the cover beam 1 by screws , the top of the adjustment support 18 is welded with an arc-shaped frame 19 adapted to the support tube 5, the arc-shaped frame 19 supports the support tube 5, and the arc-shaped frame 19 is provided with several support screws 20 to support The head of the screw 20 faces downward, and the height of the support cylinder 5 can be adjusted by adjusting the support screw 20, which facilitates the fixing of both ends of the energy-dissipating shock-absorbing device 4 . Further, in order to ensure the firmness of the installation of the energy-dissipating shock absorbing device 4, a first flange 21 is welded on the end of the left end cover 7 away from the support cylinder 5, and the st...

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Abstract

The invention discloses an electromagnetic anti-seismic anti-fall beam device suitable for bridge structures, and mainly relates to the technical field of anti-seismic bridges. It includes a cover beam, the top of the cover beam is provided with a main beam, the left and right ends of the cover beam are provided with stoppers suitable for the main beam, and an energy dissipation and shock absorbing device is provided between the stopper and the main beam , the energy dissipation shock absorbing device includes a support tube horizontally arranged between the block and the main beam, a shock sensor installed on the main beam, and a controller, one end of the support tube is provided with a left end cover, and the other end is provided with a On the right end cover, a first cylindrical block is provided at the end of the support tube close to the left end cover, a second cylindrical block is provided on the side of the convex ring far away from the first cylindrical block, and the end of the second cylindrical block is far away from the convex ring Equipped with a transmission rod. The beneficial effect of the present invention is that: adjusting the active force of the traction main girder according to the magnitude of the earthquake can save energy, and can provide lateral shock absorption for the bridge when there is no earthquake.

Description

technical field [0001] The invention relates to the field of bridge anti-seismic technology, in particular to an electromagnetic anti-seismic anti-drop beam device suitable for bridge structures. Background technique [0002] Under the action of strong earthquakes, relative displacement will occur between the upper and lower structures of the bridge. In order to limit the lateral displacement of the upper structure of the bridge, stoppers are usually set at both ends of the cover beam to prevent the beam from falling during the earthquake. , in order to ensure the life of the block, it is generally necessary to install an elastic energy-dissipating shock-absorbing device between the block and the main beam, and the shock-absorbing effect that the existing energy-dissipating shock-absorbing device can provide is fixed, for example In the prior art, the invention patent with the patent number of 201810134083.1 discloses an electromagnetic anti-drop beam device. The device has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F15/02
CPCE01D19/00
Inventor 闫磊林志张瑞杰岳克锋陈相
Owner CHONGQING JIAOTONG UNIVERSITY