Accurate installation process for oversea bridge binding beam 0# section

A technology for precise installation and sea-crossing bridges, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc. It can solve the problems of low precision of floating cranes and achieve the effect of convenient position adjustment

Inactive Publication Date: 2007-09-12
SHANGHAI FOUND ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem of low hoisting accuracy of conventional floating cranes in the prior art, the present invention provides an improved precise installation process for the 0# section of the joint beam of the cross-sea bridge

Method used

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  • Accurate installation process for oversea bridge binding beam 0# section
  • Accurate installation process for oversea bridge binding beam 0# section
  • Accurate installation process for oversea bridge binding beam 0# section

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Embodiment Construction

[0026] This sea-crossing bridge combines the precise installation process of the 0# section of the beam, and the process method is as follows:

[0027] An accurate installation process for the 0# section of the joint beam of a cross-sea bridge is characterized in that the process method is as follows:

[0028] ① According to the geometric dimensions of the beam section, set up the 0# section bent frame at the position of the 0# section beam; the 0# section bent frame is composed of steel pipes, and the channel steel 12 is fixed and connected horizontally between the two steel pipes 11; the top of the steel pipe is double-shaped The steel beams are connected by 13, and two combined beam temporary supports and two three-way adjustment devices are installed on each longitudinal double-height steel beam;

[0029] The structure of the temporary support is that the bottom is a steel block 2, and the plate rubber support 1 is placed on the steel block; the inclination angle of the pl...

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Abstract

The invention is an improvement of lifting technology on the bondbeam 0# segment of sea cable stayed bridge. (1)Build 0# steel bent of 0# beam position based on the physical dimension of beam segment. The top of steel pipe is connected by two-frame steel 1-beam. Set two temporary brackets for bondbeam and two three-dimensional controlling devices on each longitudinal two-frame steel 1-beam. (2) Adopt barge crane to sling equipped 0# segment on the sea. (3) Put the 0# segment on the temporary brackets and three-dimensional controlling devices to realize primary insertion of the beam segment. (4) Adjust rake angle and position of the beam segment using jack on level and vertical direction based on three-dimensional controlling devices to make them according to the design requirement. Adjust range is about 20cm. (5) Set fixed steel plates on four sides of the beam segment to fix satisfying beam segments for completing secondary accurate positioning of beam segments. Strike the temporary brackets. The three-dimensional controlling devices in this invention can realize the secondary accurate positioning of the bondbeam.

Description

technical field [0001] The invention is an improvement corresponding to the hoisting process of the 0# section of the joint beam of the cable-stayed bridge on the sea. Background technique [0002] The hoisting of the 0# section of the bridge deck joint beam of the traditional offshore cable-stayed bridge adopts the floating hoisting process, and the steps are as follows: [0003] ①According to the bridge elevation and line type of the engineering design drawings, accurately set up the supporting bent frame of the 0# section, that is, the large bracket for supporting the beam section set up with steel pipes and section steel; [0004] ②Use the floating crane to hoist the beam section on the bent frame; [0005] ③ After the beam sections are positioned accurately, the beam sections are connected to form a section of bridge deck. [0006] The sea conditions in the construction area of ​​the cross-sea bridge are harsh, the wind and waves are strong, the sea water is deep, and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 徐巍严浩陈钰晶
Owner SHANGHAI FOUND ENG GRP
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