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Floating bridge removing method

A technology of floating bridge demolition method and bridge method, which is applied in the direction of building maintenance, construction, building construction, etc., and can solve problems such as long construction time

Inactive Publication Date: 2013-09-04
中天交通建设投资集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using this equipment for bridge demolition, the bridge can only be demolished in sections, and the construction time is long

Method used

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  • Floating bridge removing method
  • Floating bridge removing method
  • Floating bridge removing method

Examples

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Embodiment Construction

[0018] combine Figure 1 to Figure 4 Specifically illustrate the embodiment of floating bridge dismantling method, comprise the steps:

[0019] The first stage: the demolition construction stage of the old bridge deck, the railings are removed first, then the bridge deck pavement is removed, the middle span concrete beam slab is removed, and the side span beam slabs are finally removed; the specific process is to first seal the existing road, The bottom of the old bridge and the two bridges are equipped with safety protection nets, and the old bridge components are manually chiseled out with an air compressor. First, the railings are removed, and then the bridge deck is removed; The connecting steel bars between the beams and slabs are cut by gas cutting, and the concrete in the twisted seam is opened with a pneumatic pick to reduce the restraint and binding force between the beams and slabs. Use a crane to lift it onto a flatbed truck and transport it away, while the side sp...

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Abstract

The invention discloses a floating bridge removing method, which comprises the following steps of: 1, removing an old bridge surface; 2, preparing removal construction of a concrete truss of an old bridge; and 3, removing the concrete truss of the old bridge, namely making the bridge overhead through two barges for the first time, fixing a barge on the east side on a river bank on the east side so as to transversely move the old bridge to the upper part of a reinforced concrete foundation on the west side, filling water in a barge on the west side and sinking the barge. After the first movement is finished, the west end of the concrete truss is rolled through a steel roller on the concrete foundation and the east end of the concrete truss is supported by a barge bracket so as to move by hauling the barge until the barge is moved to the river bank, the barge sinks, the concrete truss is pulled to the river bank through a winch, and a crane assists in moving the bridge on the river bank. The method can be used for removing the old bridge, and because the concrete truss is removed by a barge and track combined monolithic translation method, the construction speed is high, navigation closure time is short, and influence of old bridge removal construction on normal operation of a navigation channel is reduced.

Description

technical field [0001] The invention relates to a bridge demolition method. Background technique [0002] The traditional bridge demolition method has a slow construction speed and a long time of closed navigation, which has a great impact on the normal operation of the waterway. The Chinese utility model with the patent number of 200720070714.5 provides a lifting device for bridge demolition, including at least two Bailey truss load-bearing beams, each Bailey truss load-bearing beam includes multiple rows of Bailey trusses, and the Bailey truss includes multiple pieces Bailey truss units connected end to end, multiple rows of Bailey trusses are connected by support frames, sleepers are placed on the upper side of each Bailey truss bearing beam, and multiple tracks are laid in parallel on the sleepers. The trolleys are respectively arranged on the rails and can run on the rails, the hoist support beam is placed on the trolleys and can move with the trolleys, and the hoist i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D24/00
Inventor 马科
Owner 中天交通建设投资集团有限公司
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