Intelligent freely-compressible bridge replacement support

Abstract

An intelligent freely-compressible bridge replacement support comprises an upper steel plate, a lower steel plate, a support body, an upper screw, a lower screw, a force sensor, a fixing nut and a force application nut. The support body is arranged in a space gap between the upper steel plate and the lower steel plate, the upper screw penetrates through a reserved hole channel of the upper steel plate, the upper end is fixed to the upper steel plate through a fixing nut, and the lower end extends into the force sensor; the lower screw penetrates through a reserved hole channel of the lower steel plate, the lower end is fixed to the lower steel plate through a fixing nut, the upper end extends into the force sensor, and the force application nut is arranged at the upper screw between the upper steel plate and the force sensor. According to the structure, relative movement between the upper steel plate and the lower steel plate is controlled by rotating the force application nut, compression and loosening of the support body are achieved, and meanwhile accurate monitoring of compression force in the operation process can be achieved through the force sensor. The structure is high inintelligent degree, the compression force can be freely adjusted according to actual needs, and the compression force can be monitored in real time.

Description

technical field [0001] The invention belongs to the field of civil engineering and relates to a bridge support, in particular to an intelligent and freely compressible bridge replacement support. Background technique [0002] The bridge bearing is an important structural component connecting the upper structure and the lower structure of the bridge. It is located between the bridge and the pad stone. It can reliably transfer the load and deformation of the bridge upper structure to the bridge lower structure. It is an important force transmission device of the bridge. . However, in the actual use process, due to the harsh working environment, various diseases often appear on the bearings, which endanger the safety of the bridge structure. Therefore, it is necessary to replace the damaged bearing regularly. At present, the commonly used support replacement method is to lift the upper beam body, take out the diseased support, and install a new support. This method has a larg...

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Problems solved by technology

However, this structure has a single thickness, and the compression of the support cannot be adjusted according to the actual situation, so the scope of application is small; another example is the Chinese patent "201720666225.X", which discloses a bridge support with adjustable height and adjustable inclination angle, including Upper steel plate, plate-type rubber bearing, connecting steel plate, adjusting stud, adjusting nut, anti-loosening bolt, lower steel plate, bearing pad, the construction time of this structure is short, the impact on traffic is small, and the accuracy of adjusting the height of the bearing is controllable. However, more components increase the thickness of the entire structure, which is of little significance for reducing the jacking height; another example is the Chinese patent "201821268497.5" which discloses a bridge support with adjustable height and adjustable inclination, including a base and a connecting bar to fix Seats, connecting bars, screws, hinges, connecting rods, collars, pull rods, fixed rods, gears, fixed blocks, motors, motor protection boxes, this structure can adjust the height and inclination of the support, but more components and electronic equipment The addition of the structure greatly reduces the reliability and durability of the structure, making it difficult to promote

[0004] To sum up, the current adjustable compression bearings are either complicated in structure and difficult to popularize, or have little significance for reducing the jacking height, or cannot be quantitatively adjusted and monitored due to fixed compression

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