Replaceable seismic isolation support suitable for column top seismic isolation

Abstract

The invention discloses a replaceable seismic isolation support suitable for column top seismic isolation. The replaceable seismic isolation support comprises a steel truss column top support, a combined type detachable base plate, a seismic isolation support top platform, a seismic isolation support bottom platform and an operation platform. The combined type detachable base plate is arranged between a steel column top plate and the steel truss column top support, and the three are connected through bolts. After a seismic isolation support is installed, the combined type detachable base plate between the steel truss column top support and the steel column top plate is detached, the upper truss structure is directly supported on the seismic isolation support, and structural seismic isolation is achieved; and when the seismic isolation support needs to be maintained in the later period, the detachable base plate can be installed again, the upper truss structure is directly supported on the column top support, meanwhile, the seismic isolation support quits work and does not bear loads any more, and dismounting, overhauling and maintaining of the seismic isolation support are facilitated. According to the replaceable seismic isolation support suitable for column top seismic isolation, installation and later maintenance of the seismic isolation support are facilitated, and it can be effectively guaranteed that the seismic isolation effect of the seismic isolation support is exerted.

Description

technical field [0001] The invention relates to the field of large-span building steel structures, in particular to a replaceable shock-isolation support suitable for column top shock-isolation. Background technique [0002] At present, the long-span space steel pipe truss structure is widely used in public buildings such as stadiums, exhibition centers, transportation hubs, and industrial plants. When the long-span space steel pipe truss structure is subjected to an earthquake, the stress mode, force transmission path, and stress distribution of the structure will change, which may lead to node failure or overall structural failure, thereby affecting the normal use of the structure or even collapsing, threatening people's lives Property security. [0003] Column top isolation is one of the vibration control technologies for long-span space steel pipe truss structures. The principle of seismic isolation at the top of the column is to set the isolation support between the s...

AI Technical Summary

Problems solved by technology

When the seismic isolation support is installed between the top of the steel column and the truss structure in the project, the upper and lower connecting plates of the seismic isolation support are usually connected to the upper structure and the steel column respectively, and it is difficult to align the bolts when the support is replaced later. , the operation is difficult, labor-intensive and time-consuming

The existence of the above problems restricts the application of column top isolation technology to a certain extent.

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