Height-adjusting force measuring bearing

Abstract

The invention discloses a height-adjusting force measuring bearing, which includes top panel, Base, slide seat and packing plate, the upper surface of the chassis is recessed inwardly to form a cavity, the lower part of the slide seat is sleeved in the cavity, the top of the slider extends out of the upper surface of the base and connects with the top plate, The filling cushion plate is installedin the cavity and arranged under the sliding base, the filling cushion plate is provided with a filling pipe for injecting the filling liquid material to adjust the height of the sliding base, the outer side of the base is provided with a quick joint, and the quick joint is communicated with the filling pipe. The design is simple in structure, economical and practical, and achieves the function ofstepless height adjustment to achieve uniform pressure.

Description

technical field [0001] The invention relates to the technical field of bridge structures, in particular to a force-measuring bearing for height adjustment of a bridge. Background technique [0002] The bridge bearing is an important structural component connecting the superstructure and substructure of the bridge. It can reliably transmit the reaction force and deformation (displacement and rotation angle) of the superstructure of the bridge to the substructure of the bridge. Spherical bearings have large bearing capacity, large displacement, flexible corners, consistent rotation performance in all directions, and a wide range of temperature applications; therefore, spherical bearings are widely used in various highway, municipal, and railway bridges. [0003] However, the traditional spherical bearing has no force measurement function. During use, it is impossible to detect the force condition of the bearing, read the vertical bearing capacity of the bearing, and cannot acc...

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Problems solved by technology

[0003] However, the traditional spherical bearing has no force measurement function. During use, it is impossible to detect the force condition of the bearing, read the vertical bearing capacity of the bearing, and cannot accurately understand the internal force distribution of each section of the structure. The reliability of the theory and the rationality of the design method are verified, which brings great inconvenience to the maintenance of the support and structural monitoring

When the spherical bearing is abnormal during operation, the force condition of the bearing cannot be detected intuitively, so that the operation status of the upper structure of the bridge cannot be judged, which is not conducive to timely monitoring and evaluation of the health status of the bridge structure

In addition, due to the uneven settlement of the pier foundation on the soft soil foundation, the slight deformation of various prefabricated beams and continuous structures after tension, and the unavoidable construction errors of the support pad stone elevation of the beam structure, etc., the bridge bearing Uneven pressure bearing or even the phenomenon of "three legs" will change the stress state of the upper and lower structures of the bridge and bring hidden dangers to the safety of the structure

In addition, the traditional spherical bearing does not have the function of stepless height adjustment, and it is impossible to adjust the height of the construction height error and the height difference of the bridge during use, so as to realize the adjustment of the force of each bearing

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