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Method for replacing bridge basin-type rubber support

A technology of rubber bearing and replacement method, applied in bridges, bridge parts, bridge maintenance and other directions, can solve the problems of small bearing capacity, large bearing bearing capacity, simple replacement method, etc., and achieve low cost and short time. Effect

Inactive Publication Date: 2008-07-09
HANGZHOU MUNICIPAL CONSTR GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] At present, there are mainly two types of bearings used in general bridges. One is the plate rubber bearing, which has a small bearing capacity and is easy to replace. The other is the basin rubber bearing, which has a large bearing capacity and is easy to replace. tougher

Method used

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  • Method for replacing bridge basin-type rubber support

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Effect test

Embodiment 1

[0019] As shown in Figure 1 and Figure 2, there is a basin-type rubber bearing 3 between the box girder 1 and the pillar 2.

[0020] When replacing the support: place a 40cmx40cm steel plate 4 with a thickness of 20mm on both sides of the support 3, and place two flat hydraulic jacks 5 under the steel plate 4. The total working tonnage of the two jacks 5 and the bearing capacity of the support 3 Consistent, two flat hydraulic jacks 5 are on the symmetrical positions on both sides of the support 3; at the same time, a dial indicator 6 is installed near the support 5, and the tensioning oil pump is started to slowly lift the box girder 1, so that the steel plate on the support Keep in contact with the PTFE plate of the support but do not transmit the load; at this time, cut the anchor bolts on the support 3, remove the lower half of the support, and then chisel out the support pad stone to take out the upper steel plate of the support; then install the same Type new bearing, wel...

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Abstract

The invention discloses a basin-type rubber bridge bearing replacing method, which comprises: arranging a jack by side of a bearing, raising the box girder, cutting the connection between the bearing and a column and a box girder, replacing the bearing. The invention has the advantages that the disabled bearing is replaced by the invention method does not damage the bridge structure, improves the bridge traffic conditions, eliminates the potential dangers of the bridge, and has low cost and short time of the replacement.

Description

technical field [0001] The invention relates to the technical field of bridge engineering, in particular to a method for replacing a bridge basin rubber bearing. Background technique [0002] At present, there are mainly two types of bearings used in general bridges. One is the plate rubber bearing, which has a small bearing capacity and is easy to replace. The other is the basin rubber bearing, which has a large bearing capacity and is easy to replace. tougher. Basin rubber bearings need to be replaced due to improper installation, quality problems, poor use environment or near service life, etc., because the current general urban bridges are not considered in the design of bearing replacement, so the space near the bearings is small, This requires a good method to replace the bearing, so as to achieve the purpose of neither affecting the normal use of the bridge nor affecting the safety of the bridge structure. Contents of the invention [0003] The purpose of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00E01D19/04E01D2/04
Inventor 周松国徐达万严洪龙
Owner HANGZHOU MUNICIPAL CONSTR GRP CO LTD
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