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Weather-proof steel support for bridge

A weather-resistant steel and bridge technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve problems affecting the service life of bearings, bearing corrosion, etc., and achieve the effects of simple structure, excellent wear resistance, and environmental protection

Inactive Publication Date: 2015-12-02
CHINA RAILWAY DESIGN GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the bridge supports are mainly made of ordinary steel + paint coating, etc., which require annual maintenance such as paint. Once the coating fails, the support will be severely corroded, which will directly affect the service life of the support.

Method used

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  • Weather-proof steel support for bridge
  • Weather-proof steel support for bridge
  • Weather-proof steel support for bridge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 1 and figure 2 , a weather-resistant steel bearing for a bridge, including an upper bearing plate 1 and a lower bearing plate 2, and a spherical crown lining plate 3 is installed between the upper and lower bearing plates 1 and 2 to form a multi-directional movable spherical bearing. The upper bearing plate 1, the lower bearing plate 2 and the spherical crown lining plate 3 are all made of weathering steel, and a protective rust layer is set on the surface of the upper and lower bearing plates 1 and 2, and the spherical crown lining plate 3 has The surface of Hawker metal surface is processed by mirror surface processing method, and nickel-phosphorus alloy coating is provided on the surface of the spherical crown liner 3 .

Embodiment 2

[0029] see image 3 and Figure 4 , a bridge weather-resistant steel bearing, comprising an upper bearing plate 1 and a lower bearing plate 2, the bottom surface of the upper bearing plate 1 is provided with a groove 4 matching the lower bearing plate 2, and the top of the lower bearing plate 2 is Cooperate installed in the groove 4, and install the spherical crown liner 3 between the upper and lower bearing plates 1, 2 to form a fixed spherical bearing. The upper bearing plate 1, the lower bearing plate 2 and the spherical crown lining plate 3 are all made of weathering steel, and a protective rust layer is set on the surface of the upper and lower bearing plates 1 and 2, and the spherical crown lining plate 3 has The surface of Hawker metal surface is processed by mirror surface processing method, and nickel-phosphorus alloy coating is provided on the surface of the spherical crown liner 3 .

Embodiment 3

[0031] see Figure 5 and Image 6 , the difference between this embodiment and Embodiment 1 is that the bottom surface of the upper support plate 1 is provided with lateral stoppers 5 on both sides of the top of the lower support plate 2 along the bridge direction, and the lateral stoppers 5 are connected by bolts. 6 is fixed on the bottom of the upper support plate 1, and a shear pin 7 is fitted between the upper support plate 1 and the lateral stopper 5, thereby forming a longitudinal movable spherical support. The stopper 5 is a stopper made of weathering steel, and a protective rust layer is provided on the surface.

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Abstract

The invention discloses a weather-proof steel support for a bridge. The weather-proof steel support comprises an upper support board and a lower support board, wherein a spherical crown lining board is mounted between the upper support board and the lower support board; main body materials of the upper support board, the spherical crown lining board and the lower support board are weather-proof steel; and the spherical crown lining board is provided with a surface which is machined through a Hawking energy metal surface mirror finishing method. A nickel-phosphorous alloy plating is arranged on the surface of the spherical crown lining board. Protective rust layers are arranged on the surfaces of the upper support board and the lower support board. The weather-proof steel support for the bridge, disclosed by the invention, is advantaged in that the weather-proof steel support is simply structured and reasonably designed; the weather-proof steel support exerts very good long-term corrosion resistance and excellent wear-resisting property; the service life of the weather-proof steel support is long; the weather-proof steel support is favorable for environmental protection and cost reduction; and the weather-proof steel support does not need post-stage paint maintenance.

Description

technical field [0001] The invention belongs to the technical field of bridge supports, in particular to a weather-resistant steel support for bridges. Background technique [0002] Corrosion of steel is a common and serious problem, among which the loss caused by atmospheric corrosion accounts for about half of the total corrosion loss, which has brought huge losses to the national economy. According to the statistics of some industrially developed countries, the economic loss caused by corrosion of steel structures every year It accounts for about 2% to 4% of the GDP of the national economy. At present, the annual economic losses caused by corrosion of steel structures in the world have reached hundreds of billions of dollars. Therefore, in order to solve the problem that steel is easy to corrode in the atmosphere, people began to develop weathering steel. [0003] The bridge bearing is a key component connecting the girder body and the abutment, and its durability direct...

Claims

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Application Information

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IPC IPC(8): E01D19/04
Inventor 王祯苏伟孙大斌霍自贵周亮刘海亮黄菲骆明成
Owner CHINA RAILWAY DESIGN GRP CO LTD
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