A two-way energy dissipation anti-drop beam device

Abstract

The invention discloses a two-way energy-consuming anti-falling beam device, which belongs to the technical field of bridges and includes a main girder and a bridge pier for supporting the main girder. The main girder includes a first main girder, a second main girder, a second main girder Three main girders and a fourth main girder, the first main girder and the second main girder are juxtaposed and both are located on one side of the pier, the third main girder and the fourth main girder are juxtaposed and both are located on the side of the pier On the other side of the pier, a slip layer is provided between the pier and the main girder, the lower end of the slip layer is slidably matched with the pier in the horizontal and vertical directions, and a sliding layer is provided between the pier and the pier. The multi-directional damping structure, when the device of the present invention is applied to bridge construction, can effectively dissipate energy in the transverse direction and longitudinal direction of the main girder in the face of an earthquake, thereby avoiding the occurrence of falling beams.

Description

technical field [0001] The invention belongs to the technical field of bridges, and in particular relates to a bidirectional energy-consuming anti-drop beam device. Background technique [0002] When the bridge is subjected to a strong earthquake, the bridge will bear a large load in an instant, resulting in a large displacement. The displacement exceeds the shelving length of the beam or the beam will fall due to insufficient strength of the stopper, which will cause irreparable damage. serious loss. The anti-fall beam is a connection measure structure used in the bridge structure to resist earthquakes and prevent the beam body from falling or disengaging. The current common practice is to add anti-fall beams between the main girders to prevent the longitudinal or lateral displacement of the main girders, but the current Most of the anti-falling beam devices can only prevent longitudinal falling beams, and there is little research on the structural measures to prevent hori...

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Problems solved by technology

[0002] When the bridge is subjected to a strong earthquake, the bridge will bear a large load in an instant, resulting in a large displacement. The displacement exceeds the shelving length of the beam or the beam will fall due to insufficient strength of the stopper, which will cause irreparable damage. severe loss of

The anti-fall beam is a connection measure structure used in the bridge structure to resist earthquakes and prevent the beam body from falling or disengaging. The current common practice is to add anti-fall beams between the main girders to prevent the longitudinal or lateral displacement of the main girders, but the current Most of the anti-fall beam devices can only prevent vertical beam fall, and there is little research on the structural measures to prevent horizontal beam fall

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