A system for actively preventing concrete beams from falling and its application method

Abstract

The invention discloses a system for actively preventing concrete beams from falling and a method for using the same. Electromagnet A and electromagnet B are embedded, and electromagnet C and electromagnet D are respectively embedded in the joints between the main beam of the concrete beam and the block A and block B, and electromagnet A and electromagnet B are respectively equipped with There are displacement monitoring device A and displacement monitoring device B, and also include a single-chip circuit system. All electromagnets and displacement monitoring devices are connected with the single-chip circuit system. The single-chip circuit system forms circuits with electromagnets A, B, C and D respectively. The medium current changes its size and direction according to the monitoring results of the displacement monitoring device. The strength of the electromagnet is controlled by the magnitude of the current, and the mutual attraction or repulsion between the electromagnets is controlled by the direction of the current, so that the main beam of the concrete beam and the concrete beam can be realized. The close fitting and separation of the stopper A and the stopper B prevents the bridge from falling and ensures the normal and orderly use of the bridge.

Description

technical field [0001] The invention belongs to the field of transportation engineering and bridge technology processing, and in particular relates to a system for actively preventing concrete beams from falling and a method for using the same. Background technique [0002] Under the action of earthquakes, explosions and impact loads, the bridge structure often undergoes large vibrations. In severe cases, it may cause the upper concrete beam body to have a lateral displacement exceeding the limit, the block to be damaged, and the beam body to fall. As a hub project on the traffic line, once the concrete beam falls, the traffic network will be paralyzed, which will bring great difficulties to the post-disaster rescue work and seriously affect the lives of the people. [0003] In the existing technical field of bridge engineering, more and more researchers are paying attention to the phenomenon of preventing bridge beams from falling. The girder is set in a multi-layer struct...

AI Technical Summary

Problems solved by technology

As a hub project on the traffic line, once the concrete beam falls, the traffic network will be paralyzed, which will bring great difficulties to the post-disaster rescue work and seriously affect the lives of the people.

[0003] In the existing technical field of bridge engineering, more and more researchers are paying attention to the phenomenon of preventing bridge beams from falling. The girder is set in a multi-layer structure, which can limit the longitudinal displacement of the box girder. At the same time, there are three layers of transverse energy dissipation devices in each layer of the box girder, which can limit the lateral displacement of the box girder. However, this method is based on the main body of the bridge. Starting with the structure, the structure is complex, the economic cost is high, and it costs a lot; another example is the patent document with the publication number CN208440969U, which discloses a T-shaped cross-section beam bridge anti-seismic and anti-fall beam structure, which includes a cover beam and a cover beam The steel plate placed horizontally above, the horizontal steel plate is anchored on the cover beam through the anchor bolt embedded in the cover beam, two vertical steel plates are vertically arranged on the flat steel plate, and two rows of threaded steel bars are arranged between the two vertical steel plates. It can limit the longitudinal and lateral displacement of T-beams and avoid the hazards of T-beams falling in earthquakes. Although this method is simple in structure, once the bridge structure is completed, it cannot be changed and is not flexible enough. With the increase of the service life of the bridge, it will continue to wear out. , users cannot effectively monitor the bridge, which is far from the development direction of artificial intelligence in the new era

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