Novel energy-consumption beam falling prevention device

Abstract

A novel energy-consumption beam falling prevention device is characterized by comprising a connecting plate A (1), a connecting plate B (2), an E-shaped energy-consumption element (3), high-strength bolts (4), a girder embedded part (5), a pillar embedded part (6), restraining groove holes (7) of the connecting plate B (2), and restraining groove holes (8) of the connecting plate A (1), wherein the restraining groove holes (7) which are matched with cantilevers of the E-shaped energy-consumption element (3) in number and position are processed on the connecting plate B (2), the lengths of the restraining groove holes (1) in the middle of the connecting plate B (2) are smaller than those of the restraining groove holes (7) at the two ends of the connecting plate B (2), the matched restraining groove holes B (8) are arranged at the position on the connecting plate A (1), opposite to the retaining groove holes (7) in the middle of the connecting plate B (2), and matched screw holes or through holes (9) are processed at the position opposite to the restraining groove holes (7) in the two ends of the connecting plate B (2); and the connecting plate B (2), the connecting plate A (1) and the E-shaped energy-consumption element (3) are connected with each other by the high-strength bolts (4), the free end of the connecting plate A (1) is hinged with the pillar embedded part (6) by the high-strength bolts, and the free end of the connecting plate B (2) is hinged with the girder embedded part (5). The novel energy-consumption beam falling prevention device has the characteristics that the construction is simple, the structural form is reasonable, the manufacturing cost is low, the installation and the replacement are easy, the energy-consumption performance is good, and the like and has good application prospect.

Description

technical field [0001] The invention relates to a bridge anti-seismic and shock-absorbing technology, especially a novel energy-dissipating anti-drop beam device in the passive energy-dissipating shock-absorbing control and position limiting of bridge structures, specifically a bridge structure that can provide additional damping It is a new type of energy-consuming anti-fall beam device that reduces the seismic response of bridges, limits the relative displacement between pier-beam (or platform-beam), and finally prevents beam fall. Background technique [0002] Aseismic resistance of bridges is a relatively complicated problem. Compared with building structures, due to the structural characteristics of bridges, seismic problems and building structures have their own unique aspects. Expansion joint devices are non-structural components that are designed to accommodate the effects of structural material shrinkage, creep, and external environmental temperature changes. Its n...

AI Technical Summary

Problems solved by technology

At present, the cable-type anti-fall beam device and oil damper energy-dissipating device are mainly used. The cable-type anti-fall beam device will only work when the relative displacement between the pier (platform) beams exceeds its non-working length. , and can only play a limiting role. Although the oil damper can produce energy consumption, it is difficult to be widely used because it is prone to oil leakage and expensive. The anti-drop beam device that can limit the position has become a top priority

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