Unsymmetrical pressure detector for bearing installation and unsymmetrical pressure-preventing bearing installation method
A detection device and support technology, which is applied in the direction of measuring devices, force measurement, erection/assembly of bridges, etc., can solve the problems of unreasonable force on the beam body, damage, and uneven force on the support, so as to avoid the force on the support Uneven, easy to use and operate, and reasonable structural design
Inactive Publication Date: 2016-04-20
CHANGAN UNIV
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Problems solved by technology
[0003] However, in the installation process of bridge bearings (especially rubber bearings), the partial height control will cause the bearing to be biased; and with the continuous action of dynamic loads such as vehicles, the bias will become more and more serious , not only will the support be unevenly stressed, prematurely damaged, and reduce the service life of the support, but also cause unreasonable force on the beam body and cracks, seriously affecting traffic safety
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[0052] Such as figure 1 , figure 2 and image 3 A support installation bias detection device shown includes a fixed steel collar 5 coaxially hooped on the bridge support 7 to be detected, a plurality of pressure sensors 1 arranged outside the fixed steel collar 5, and a plurality of pressure sensors. A height adjustment device 2 that adjusts the layout height of a plurality of pressure sensors 1 and a data receiving terminal connected to a plurality of pressure sensors 1, the bridge support 7 is installed on the support pad stone A circular rubber bearing, the bearing pad stone is located on the top of the bridge pier. A plurality of the height adjusting devices 2 are all fixed on the outer side wall of the fixed steel collar 5 and arranged uniformly along the circumferential direction. The fixed steel collar 5 is a ring and is spliced by a plurality of arc-shaped steel plates, and the plurality of arc-shaped steel plates are arranged along the circumferential direction....
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The invention discloses an unsymmetrical pressure detector for bearing installation and an unsymmetrical pressure-preventing bearing installation method. The unsymmetrical pressure detector comprises a stationary steel bushing, a plurality of pressure sensors, a plurality of height adjustors and a data receiving terminal, wherein the stationary steel bushing coaxially hoops a detected bridge bearing, the pressure sensors are evenly arranged on the outer side of the stationary steel bushing, the arrangement heights of the pressure sensors are respectively adjusted by the height adjustors, the data receiving terminal is connected with all the pressure sensors, the bridge bearing is a round rubber bearing, and the height adjustors are evenly arranged on the outer sidewall of the stationary steel bushing along the circumferential direction. The unsymmetrical pressure-preventing bearing installation method includes the following steps: (1) surveying and setting-out; (2) installation of the bearing; (3) installation of the unsymmetrical pressure detector; (4) trial girder placement; (5) detection of the unsymmetrical pressure conditions of the bearing; (6) judgment for the adjustment of the unsymmetrical pressures of the bearing; (7) adjustment of the unsymmetrical pressures of the bearing. The invention is reasonably designed, is convenient to implement, has a good use effect, can easily and quickly detect out the unsymmetrical pressure conditions of the bearing, and can reduce or even prevent the unsymmetrical pressure phenomenon of the bearing.
Description
technical field [0001] The invention belongs to the technical field of bridge construction, and in particular relates to a support installation bias detection device and a support anti-bias installation method. Background technique [0002] The bridge support 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, so that the actual stress of the structure can be compared with the calculation consistent with the theoretical schema. The bridge support is erected on the pier and its top surface supports the bridge superstructure. Bridge bearings are divided into steel bearings, polytetrafluoroethylene bearings (sliding bearings), rubber bearings, concrete bearings and lead bearings according to different materials. Among them, the bridge rubber bearing is made of vulcani...
Claims
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Login to View More IPC IPC(8): G01L1/00E01D21/00E01D19/04
CPCG01L1/00E01D19/04E01D21/00
Inventor 武芳文张庆开薛成凤丰丙龙邱建涛左英曹旭
Owner CHANGAN UNIV