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Bailey beam support free of buttress in soft foundation and supporting method thereof

A soft foundation and support frame technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of insufficient bearing capacity, increase production cost, increase construction difficulty, etc., achieve uniform stress and save production The effect of shortening cost and construction period

Inactive Publication Date: 2013-08-07
CHINA CONSTR SIXTH ENG DIV CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, such as 2011205160386 patent discloses the use of steel pipe Bailey beam support construction in soft foundations, this technology needs to build steel pipe buttresses through cast-in-situ piles and steel pipe piles, which increases production costs, prolongs the construction period, and increases the construction time. difficulty
At the same time, the Bailey beam in this technology is a single-layer structure, and its bearing capacity cannot meet the requirements when it is constructed with the technology of unsupported piers

Method used

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  • Bailey beam support free of buttress in soft foundation and supporting method thereof
  • Bailey beam support free of buttress in soft foundation and supporting method thereof
  • Bailey beam support free of buttress in soft foundation and supporting method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, The construction of the 900-ton Beijing-Shanghai high-speed railway uses a 32-meter-long cast-in-place box girder:

[0034] 1) Processing and installation of embedded parts

[0035] according to image 3 The process of the embedded parts provided requires the processing plant to process the geometric steel bars with a welding spacing of 80mm on the steel plate. The welding between the steel bar and the steel plate must be firm, and the length, thickness and fullness of the weld must meet the specification requirements. When constructing the cap, 5 embedded parts are buried in the cap at a distance of 2.5m. During the construction of the pier body, the height of the pier body is 13m, and embedded parts are buried 1.5 meters below the top of the pier, and 5 embedded parts are distributed at a distance of 2.5m.

[0036] 2) Bracket erection

[0037] The number of spiral steel pipes arranged is the same as the number of embedded parts. The embedded parts are ...

Embodiment 2

[0042] Example 2 , to build a 600-ton Beijing-Tianjin high-speed railway, using a 25-meter-long cast-in-place box girder:

[0043] 1) Processing and installation of embedded parts

[0044] according to image 3 The process of the embedded parts provided requires the processing plant to manufacture geometric steel bars with a welding spacing of 100mm on the steel plate. The steel bar and the steel plate must be welded firmly, and the length, thickness and fullness of the weld must meet the specification requirements. When constructing the cap, 3 embedded parts are buried in the cap at a distance of 2.1m. During the construction of the pier body, the height of the pier body is 16m, and the embedded parts are buried 1.5 meters below the top of the pier, and the embedded parts are distributed at 2.3 m intervals.

[0045] 2) Bracket erection

[0046] The number of spiral steel pipes is the same as the number of embedded parts. The spiral steel pipes 2 and the bearing platform an...

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PUM

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Abstract

The invention discloses a Bailey beam support free of a buttress in a soft foundation and a supporting method thereof. The Bailey beam support comprises a bearing platform with a pier body. The pier body is provided with steel pipes with the bottoms connected with the bearing platform, a first beam and a second beam which are parallel to each other are arranged at the ends of the steel pipes, the steel pipes are connected with the bearing platform through bearing platform embedded parts and are connected with the pier body through pier body embedded parts, a support frame is arranged between the steel pipes, a Bailey beam is arranged between the first beam and the second beam, and a jack and a template are sequentially arranged on the second beam. According to the Bailey beam support, production cost is reduced, a construction period is shortened, construction is facilitated, and safety in production is guaranteed.

Description

technical field [0001] The invention relates to a construction device for building a bridge, in particular to a Bailey beam bracket without a pier used in the construction of a cast-in-place beam in a soft foundation and a supporting method thereof. Background technique [0002] With the rapid development of modern economy, the construction of rail transportation is imminent. In the construction of rail transportation, cast-in-place box girders are often used in the construction of bridges. Among them, some simply supported box girders and continuous girders are built with full-wall brackets and steel tube Bailey beam brackets. In the prior art, such as 2011205160386 patent discloses the use of steel pipe Bailey beam support construction in soft ground, this technology needs to build steel pipe buttresses through cast-in-situ piles and steel pipe piles, which increases production costs, prolongs the construction period, and increases the construction time. difficulty. At ...

Claims

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Application Information

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IPC IPC(8): E01D21/00
Inventor 张书良李传鹏
Owner CHINA CONSTR SIXTH ENG DIV CORP