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Jacking bracket system for segmented mounting of bridge tower and construction process thereof

A technology of jacking support and construction technology, which is applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., which can solve the problems of large amount of auxiliary materials and high construction safety risks, and achieve the effect of saving auxiliary materials and reducing safety risks

Active Publication Date: 2013-05-15
CHINA FIRST HIGHWAY ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned methods all require cranes or supports higher than the bridge tower, and the amount of auxiliary materials is large, and the risk of construction safety is also great

Method used

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  • Jacking bracket system for segmented mounting of bridge tower and construction process thereof
  • Jacking bracket system for segmented mounting of bridge tower and construction process thereof
  • Jacking bracket system for segmented mounting of bridge tower and construction process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1~2 As shown, a jacking bracket system for the segmented installation of a bridge tower of the present invention is composed of a fixed bracket 1, a limit device 2 and a jack 3. The fixed bracket 1 is fixed on the foundation 6 around the bridge tower , The inner side of the fixed bracket 1 is symmetrically provided with a limiting device 2 for limiting the center of the pylon; the fixed bracket 1 or the limiting device 2 is provided with a jack 3, and the bottom of the jack 3 is fixedly connected to the pylon ; Among them, there are 4 jacks 3, which are arranged symmetrically along the periphery of the tower. Among them, the limiting device 2 inside the fixed bracket 1 is adjustable. The fixed bracket 1 and the limiting device 2 can adjust the position of the bridge tower to make the bridge stand upright; the fixed bracket 1 is fixed on a firm foundation, and the fixed bracket 1 The strength meets the requirements for the lifting of the pylon and the sta...

Embodiment 2

[0035] In the above step 4, using the fixed bracket 1 as a support, use the lifting device 8 to lift the bridge tower section 5 to be installed and place it upright on the translation trolley 7, move the translation trolley 7 so that the bridge tower section 5 to be installed enters the Install below section 4 of the pylon. The other structure and construction process of the jacking support system are the same as in Embodiment 1, and will not be detailed here.

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Abstract

The invention relates to a jacking bracket system for segmented mounting of a bridge tower and a construction process thereof, belonging to the field of bridge engineering. The segmented-mounted jacking bracket system is formed by matching fixed brackets, limiting devices and jacking devices. The construction process is characterized in that the brackets are fixed on the circumference of the design position of the bridge tower; a top section for mounting the bridge tower is arranged in the brackets and is lifted to a certain height by using the jacking devices; the height is lower than the height of the brackets and higher than the height of the section of the bridge tower; the circumference of the bridge tower is fixed by using the limiting devices on the bracket, so that the bridge tower is erected in a suspended state; a second section is spliced at the lower end of the top section; two spliced sections are jacked to a certain height by using the jacking devices; a third section isspliced below the spliced two sections; all sections are sequentially spliced; and finally, a bottom section of the bridge tower is connected with a foundation to finish mounting of the bridge tower.The jacking bracket system and the construction process thereof can be used for saving an auxiliary material for mounting the bridge tower; meanwhile, the mounting operation height is reduced and theconstruction safety is improved.

Description

Technical field [0001] The invention relates to a support system for bridge construction and a construction technology thereof, in particular to a jacking support system and a construction technology for the installation of bridge towers in sections, and belongs to the field of bridge engineering. Background technique [0002] The pylons or piers are the main components of the bridge, and some are several hundred meters high. At present, the well-known prefabricated bridge towers are constructed by the segmental installation method or integrally hoisted. The construction process principle of the segmental installation method is to use a crane higher than the bridge tower to fix the bottom section on the foundation, and then assemble it section by section from bottom to top to increase the height of the structure; each section is completed, the bridge tower can be independent stable. The process principle of the overall hoisting process is to use a crane higher than the bridge t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D21/00
Inventor 张志新
Owner CHINA FIRST HIGHWAY ENG CO LTD
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