Two-direction energy dissipation beam falling prevention device

Abstract

The invention discloses a two-direction energy dissipation beam falling prevention device, and belongs to the technical field of bridges. The two-direction energy dissipation beam falling prevention device comprises a main beam and a pier used for supporting the main beam. The main beam comprise a first main beam, a second main beam, a third main beam and a fourth main beam; the first main beam and the second main beam are arranged in parallel and are positioned on one side of the pier; the third main beam and the fourth main beam are arranged in parallel and are positioned on the other side of the pier; a sliding layer is arranged between the pier and the main beam, the lower end of the sliding layer is in transverse sliding matching and longitudinal sliding matching with the pier; and amulti-direction damping structure is arranged between the sliding layer and the pier. According to the present invention, with the application of the device in the bridge construction, the energy consumption can be effectively performed on the transverse direction and the longitudinal direction of the main beam during earthquake so as to avoid the occurrence of the beam falling.

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...

AI Technical Summary

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

Images