Sliding damping support for in-situ replacement of existing plant roof truss and construction method

Abstract

The sliding damping support comprises a masonry column, a positioning plate and a bearing plate which are arranged on the masonry column, and further comprises a connecting plate and a polyfluortetraethylene plate, the connecting plate is arranged on the positioning plate, and the polyfluortetraethylene plate is arranged at the end, away from the positioning plate, of the connecting plate in a sliding mode; the bearing plate is arranged at the end, away from the connecting plate, of the polyfluortetraethylene plate, a sliding groove is formed in the bearing plate in the length direction, the sliding groove penetrates through the bearing plate and the polyfluortetraethylene plate in the vertical direction, a limiting screw is vertically inserted into the sliding groove, and one end of the limiting screw is fixedly connected to the connecting plate. The polyfluortetraethylene plate drives the bearing plate to slide through the sliding grooves, horizontal stress is converted into a part of kinetic energy, and then a part of stress is offset through friction force generated in the sliding process. The roof truss support has the function of improving the capability of resisting the horizontal acting force.

Description

technical field [0001] The present application relates to the field of structural reconstruction of existing factory buildings, and in particular, to a sliding damping bearing and a construction method for exchanging the frame of existing factory buildings in situ. Background technique [0002] Since the beginning of the 21st century, with the transformation of urban functions and the reorganization of urban spatial structure, Shanghai has entered a period of urban renewal, and many old buildings have gradually been given new functions. There are many problems in the renovation project of old factory buildings in urban renewal. In many old factories, due to the existence of chords under the original roof truss, the clearance is not enough to meet the clearance requirements of subsequent venues. The columns used in the factory buildings are masonry columns. A roof truss support is arranged on the masonry column, the roof truss is a steel beam, the roof truss is set on the roo...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that when the bottom chord of the roof truss is removed, the horizontal force on the roof truss as a whole is not easy to offset or release, resulting in damage to the roof truss support, thus causing potential safety hazards during the construction process

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