Steel anti-vibration block

Abstract

The invention discloses a section steel seismic prevention stop block which has a three-way limiting function and is convenient for construction. The section steel seismic prevention stop block comprises a base plate and a baffle, wherein the base plate is provided with a mounting hole; the baffle is provided with a limiting hole; a limiting connecting member of which two ends respectively extendout of the limiting hole is arranged in the limiting hole; an axial limiting structure is arranged at one end of the limit connecting member, which is positioned at the inner side of the baffle; the other end of the limit connecting member, which is positioned at the outer side of the baffle, is a matched connecting end; and in the limit connecting member, the limiting hole is taken as a sliding hole. The section steel seismic prevention stop block is used as a fall-preventing beam structure, thus the limiting functions in longitudinal, transverse and vertical directions can be comprehensively achieved and the safety and reliability are realized; the base plate is connected with a copping beam or a cap beam through the mounting hole; the matched connecting end of the limit connecting member is connected with a pre-embedded member in a beam body; the stop block can be mounted after a beam plate is mounted; the section steel seismic prevention stop block disclosed by the invention is simple and convenient for field construction, attractive in structure, economical and reasonable and is convenient for inspection, maintenance and curing of a bridge; and the requirements of different seismic acceleration levels, different spans and different elongated displacement can be met.

Description

technical field [0001] The invention relates to an anti-drop beam block used in bridge engineering, in particular to an anti-vibration block. Background technique [0002] As an important part of the road traffic network, the bridge is the throat and hub of the road system. The seismic safety of bridges is of great significance to ensure the smooth traffic network after the earthquake. The falling beam under the action of earthquake is a serious bridge earthquake damage. In order to prevent the occurrence of falling beam earthquake damage, the anti-falling beam system is widely used on bridges. It can effectively prevent the beam from falling off from the cap beam or cap beam. It consists of beam laying length, pier-beam connection device and beam-beam connection The device consists of three parts. A common pier-beam anti-fall beam construction is the stop. Blocks include reinforced concrete blocks and steel blocks. [0003] The existing stopper limit devices are arrang...

AI Technical Summary

Problems solved by technology

[0003] The existing stopper limit devices are arranged in the way of horizontal and vertical respectively, and basically adopt reinforced concrete structure. In order to ensure the construction quality, the design generally requires that the vertical and horizontal stoppers must be together with the cover beam. However, this will bring inconvenience to the installation of the beam and slab, so there will be a problem of secondary pouring of the stopper. During the second pouring, since the beam and slab have been installed in place, the construction space of the stopper is narrow, and the erection, concrete pouring, and maintenance operations Difficult, construction quality is not easy to guarantee

Moreover, the existing stopper stoppers almost do not have vertical stoppers. Due to the vertical seismic force in the earthquake, the existing anti-fall beam stopper structure basically has no preventive effect on this.

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