Anti-seismic and anti-falling beam structure

Abstract

The invention belongs to the field of anti-falling beams, and particularly relates to an anti-seismic and anti-falling beam structure. An anti-seismic seat is movably clamped at the top of a bridge abutment, a fixed column is fixedly connected to the bottom of an anti-falling beam body, a movable plate is slidably connected into a mounting cavity in the anti-seismic seat, and the bottom end of thefixed column extends into the mounting cavity and is fixedly connected with the bottom of the movable plate; two telescopic rods are symmetrically and fixedly connected to the inner wall of the top of the mounting cavity, the bottom ends of the two telescopic rods are fixedly connected with the top of the moving plate, two ball screws are symmetrically and rotationally connected to the inner wallof the bottom of the mounting cavity, and screw nuts are in threaded connection with the two ball screws; two fixing rods are symmetrically and fixedly connected to the tops of the two lead screw nuts, the top ends of the four fixed rods are fixedly connected with the bottom of the moving plate, the two ball screws are fixedly sleeved with gears, and damping grooves are formed in the inner wallsof the two sides of the mounting cavity, so the problems that an existing anti-falling beam is single in anti-seismic structure and poor in anti-seismic effect are solved.

Description

technical field [0001] The invention belongs to the technical field of anti-fall beams, and relates to an anti-seismic anti-fall beam structure. Background technique [0002] The anti-fall beam is a connection measure used in the bridge structure to resist earthquakes and prevent the beam body from falling or falling off. A joint flexible connection system, the connecting rod device is composed of a connecting rod and a damper. [0003] The existing anti-fall beam anti-seismic structure is single, and the anti-seismic effect is not good, which will reduce the service life of the bridge, and the operation of the anti-fall beam is cumbersome during assembly, which reduces the construction efficiency. Therefore, we propose an anti-seismic anti-fall beam structure. To solve the problems raised above. Contents of the invention [0004] In view of this, the present invention solves the problem that the existing anti-fall beam has a single anti-seismic structure and poor anti-s...

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Problems solved by technology

[0004] In view of this, the present invention solves the problem that the existing anti-fall beam has a single anti-seismic structure and poor anti-seismic effect, which will reduce the service life of the bridge, and the operation of the anti-fall beam is cumbersome during assembly, which reduces the construction efficiency. Propose an anti-seismic anti-fall beam structure

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