Spiral bridge support

A helical, bearing technology, applied in bridges, bridge parts, bridge construction, etc., can solve problems such as uneven settlement of seismic anti-falling beams, etc., achieve good practical value and economic benefits, good earthquake-resistant anti-falling beams, prevent falling The effect of beam failure
CN103306196BInactive Publication Date: 2015-03-11CHINA RAILWAYS CORPORATION +2
8 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA RAILWAYS CORPORATION
Publication Date
2015-03-11
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a spiral bridge support, which comprises an upper support board (1) and a lower support board (6); a nut support (2) is arranged at the lower part of the upper support board (1), a lower support board cylindrical surface groove base (5) is arranged on the lower support board (6); and the upper support board (1) is connected with the lower support board cylindrical surface groove base (5) through a tripping preventing board (7). According to the invention, the manufacture and the assembly are convenient, the structure has a high reliability degree, and the maintenance property is very flexible; under normal operation, the support can satisfy deformation such as temperature deformation and concrete shrinkage and creep of the bridge; after the differential settlement of the bridge, the support can be lifted to satisfy the ride comfort standard of the bridge surface through simple operation; under the action of earthquake, the support can limit longitudinal and transversal earthquake displacement of the bridge, and prevent beam falling and beam tripping; and the support can effectively solve the problem of bridge falling and track unevenness which is caused by uneven settlement of the pier.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to an anti-drop beam support, in particular to an upliftable support for anti-seismic anti-fall beam settlement repair for high-speed railway bridges. Background technique

[0002] In recent years, with the rapid development of my country's economic construction, the construction of high-speed railway has developed more rapidly. However, for a high-speed railway with a speed of more than 200km / h, the vibration of the train caused by the irregularity of the track is far more serious than that of a normal speed train under the same conditions, that is, the comfort level of passengers will deteriorate due to the increase in speed. Therefore, the high-speed railway puts forward higher requirements for the smoothness of the track. However, due to the influence of natural disasters and subgrade geological conditions, the existing high-speed railway piers in service have different degrees of uneven settlement, which seriously affects th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More