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Bridge friction support

A technology of bridges and bearings, which is applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of bridge pier damage, bridge falling beams, and high initial stiffness of friction bearings, so as to reduce the force, overcome the large initial stiffness, reduce the good shock effect

Inactive Publication Date: 2020-11-03
ZHUZHOU TIMES NEW MATERIALS TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, the initial rigidity of the existing friction bearing is high, so that the pier is easily damaged due to the large force, and the existing structure of the friction pendulum bearing is easy to cause the bearing to exceed the design displacement and deformation, resulting in the occurrence of dangerous situations such as bridge beam falling

Method used

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  • Bridge friction support

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereby.

[0025] Such as figure 1 As shown, the bridge friction bearing of this embodiment includes an upper seat plate 1, a lower seat plate 2 and a friction sliding block. Among them, the upper seat plate 1 is fixed on the bottom plate of the bridge girder, the lower seat plate 2 is fixed on the pier, and the friction sliding block is slid between the upper seat plate 1 and the lower seat plate 2 to bear vertical and horizontal loads and meet the bridge displacement. Require. In this embodiment, the friction sliding block is a rubber sliding block 3, the upper and lower end faces of the rubber sliding block 3 are planes, the rubber sliding block 3 cooperates with the upper seat plate 1, and the rubber sliding block 3 and the lower seat plate 2 form a plane friction pai...

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Abstract

The invention provides a beam friction support, and the support comprises an upper base plate, a lower base plate and a friction sliding block arranged between the upper base plate and the lower baseplate in a sliding mode; the friction sliding block is a rubber sliding block, and the upper end face and the lower end face of the rubber sliding block are planes so that the rubber sliding block canbe matched with the upper base plate and the lower base plate to form a plane friction pair. The sliding friction coefficient a between the rubber sliding block and the lower base plate is less thanthe sliding friction coefficient b between the rubber sliding block and the upper base plate. The support has the advantages of being prevented from being damaged, good in vibration reduction effect,simple in structure and the like.

Description

technical field [0001] The invention relates to the technical field of bridge supports, in particular to a bridge friction support. Background technique [0002] The traditional seismic design of bridge structures mainly relies on the strength and deformation of the bridge structure itself to resist earthquakes, which usually results in a large amount of seismic energy being transferred from the ground to the structure, which is poor in economy. In recent years, in order to improve the anti-seismic performance of the structure, a large number of anti-seismic bearings have been used at home and abroad to extend the natural vibration period of the structure, reduce the seismic energy transmitted to the upper structure, and play the role of isolation and energy consumption. Friction bearings are widely used in engineering because of their low sensitivity to seismic excitation frequency range, durability and stability, and strong self-resetting ability. However, the initial rig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/04
CPCE01D19/041
Inventor 孔令俊陈彦北金杰
Owner ZHUZHOU TIMES NEW MATERIALS TECH
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