The differences and main functions of various rubber bearings

Introduction to Plate Rubber Bearings and Basin Rubber Bearings. They are devices erected on piers and abutments, with the top surface supporting the bridge superstructure. Its function is to fix the superstructure to the pier, bear various forces acting on the superstructure, and reliably transmit them to the pier. Under the action of load, temperature, concrete shrinkage and creep, the bearing can Adapt to the
rotation and displacement of the superstructure so that the superstructure can be freely deformed without generating additional additional internal forces.
The structure of the bridge support should comply with the theoretical calculation diagram of the superstructure. If the support pressure is transmitted through a fixed point, the support should be designed to be fixed and can only allow the end of the structure to rotate but not move. If the support pressure is transmitted through a fixed point and acts in a certain direction,
it should be designed as a movable support that can both rotate and move. There are three types of beam bridge supports: horizontal two-way fixed supports (ie fixed supports), horizontal two-way movable supports (or two-way movable supports), and horizontal one-way fixed and one-way movable supports (ie movable supports). Its arrangement depends on the width of the bridge. In narrow bridges, it is generally only required to move freely along the driving direction. In wide bridges, the arrangement of various supports is required to be arranged according to the drawings because the lateral deformation of the superstructure is also large. The bearing is an important force transmission device of the bridge. In addition to considering its sufficient strength, stiffness and free rotation or movement performance, the bearing should also be easily repaired and replaced during the design. The seat plate should be paid attention to during the construction. The lower concrete cushion should be leveled
and its placement should be determined according to the temperature. In earthquake areas, anti-seismic measures should be considered
Circular plate rubber bearings (Z series)
Plate rubber bearings Installation quality is a key link to ensure the performance and service life of the bearing. Hengshui Engineering Rubber Co., Ltd. has put forward a variety of troubleshooting methods for common abnormal phenomena based on years of quality requirements for plate rubber bearings in the installation. Construction units are welcome.
Plate rubber bearing is a bridge rubber bearing product which is inlaid, bonded and vulcanized with multiple layers of natural rubber and thin steel plates. This type of
bridge plate bearing has sufficient vertical stiffness to withstand the vertical load, and can reliably transmit the pressure of the superstructure to the pier, and has good
elasticity to adapt to the rotation of the beam end. Large shear deformation to meet the horizontal displacement of the superstructure has the characteristics of simple structure, convenient installation, steel saving, low price, simple maintenance, and easy replacement.
The main function of the rubber bearing
The main function of the bridge bearing is to reliably transmit the reaction force of the superstructure to the pier, and at the same time complete the required deformation of the beam structure (water
horizontal displacement and rotation angle). Due to the quality problems of the bearing itself, as well as various improper design, installation and use of the bearing, the bearing is prematurely damaged, affecting the normal use of the bridge. In the disposal technology of rubber bearings, it is necessary to replace the bearings for irreparable damage. During the replacement process, the replacement method has a great impact on the safety of the bridge structure. Therefore, when replacing During the replacement process
it is necessary to monitor the main stress-bearing parts of the bridge structure to ensure the safety and controllability of the replacement process.
Hengshui Kaixiang Rubber Products Co., Ltd.
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Contact person: Manager Hou
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Address: Beitian Village, Pengdu Township, Binhu New District, Hengshui, Hebei Province