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Steel structure temporary fixing device and technology used for splicing of large-size capping beam cantilever

A temporary fixation and steel structure technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of long construction period, impact of on-site traffic and surrounding environment, completion of prefabricated installation, etc. easy effect

Pending Publication Date: 2019-03-15
SHANGHAI HIGHWAY INVESTMENT CONSTR DEV CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing technology, due to the influence of transportation and hoisting conditions, it is difficult to prefabricate and install large-scale cover beams over 200 tons at one time
In previous projects, cast-in-place or partly prefabricated and partly cast-in-place methods were often used. Temporary supports need to be erected and concrete poured on site, which will have an impact on on-site traffic and the surrounding environment, and the construction period is relatively long

Method used

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  • Steel structure temporary fixing device and technology used for splicing of large-size capping beam cantilever
  • Steel structure temporary fixing device and technology used for splicing of large-size capping beam cantilever
  • Steel structure temporary fixing device and technology used for splicing of large-size capping beam cantilever

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Embodiment

[0026] The process of the present invention is used in the new construction of S7 Highway in Shanghai. It is actively explored in the field of bridge full prefabrication and assembly technology, and breakthroughs have been made in the fields of cap beam high block structure and deep buried anchor technology, abutment prefabrication and assembly technology.

[0027] This technology divides the large cap beam into several small sections to match the prefabricated construction. The splicing surface is jointed with epoxy glue, and the joint form is a corrugated vertical joint. The miniaturization of the segments is convenient for transportation and hoisting; the matching prefabricated construction can ensure the uniform and close bonding of the joints; the splicing surface is epoxy glued to ensure the quality of the joints and rapid construction.

[0028] In particular, the first corbel-type vertical joints effectively reduce the construction difficulty and risk of construction wit...

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Abstract

The invention relates to a steel structure temporary fixing device and technology used for splicing of a large-size capping beam cantilever. The device is characterized in that the steel structure temporary fixing device is a cuboid steel structure member spliced by several steel plates, a lifting lug is arranged on the top of the cuboid steel structure member, and a precise rolling threaded anchoring plate is arranged on the front side wall of the cuboid steel structure member; a horizontal stiffening plate is arranged at the bottom of the precise rolling threaded anchoring plate, a verticalstiffening plate is arranged on the back side wall of the cuboid steel structure member, and a left side otic placode is arranged on the left side of the cuboid steel structure member; a pin rod fixedhole is formed in one end portion of the left side otic placode, a right side otic placode is arranged on the right side of the cuboid steel structure member, and a pin rod fixed hole is also formedin one end portion of the right side otic placode; the steel structure temporary fixing device is fixed to a capping beam through the pin rod fixed holes in the left side otic placode and the right side otic placode and special pin rods. The device and technology achieve the target of no supporting and no cast-in-place of a super-wide large-scale capping beam, construction is simple, the effect issignificant, and the construction period is greatly shortened.

Description

[technical field] [0001] The invention relates to the technical field of cantilever assembling of cover beam segments, in particular to a temporary fixing device for cantilever assembling of large cover beams and a process thereof. [Background technique] [0002] In the prior art, due to the influence of transportation and hoisting conditions, it is difficult to prefabricate and install large-scale cover beams over 200 tons at one time. In previous projects, cast-in-place or partly prefabricated and partly cast-in-place methods were often used, which required erection of temporary supports and on-site pouring of concrete, which would have an impact on on-site traffic and the surrounding environment, and the construction period was relatively long. [Content of the invention] [0003] The purpose of the present invention is to overcome the technical problems existing in the prior art, in order to achieve the goal of super-wide large-scale cover beams without support and with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00
CPCE01D19/02E01D21/00
Inventor 查义强卫张震金钱华张玉富吴建兵李逸之姚力黄兵黄杰夏恺恺
Owner SHANGHAI HIGHWAY INVESTMENT CONSTR DEV CO LTD
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