Variable-breadth movable support and construction method thereof

A technology of moving brackets and construction methods, applied in the erection/assembly of bridges, bridges, buildings, etc., can solve the problems of narrow operating space, high installation and dismantling risks, and high labor intensity, achieving a high degree of mechanization, saving total construction period, reducing labor-intensive effect

Pending Publication Date: 2020-12-11
THE 2ND ENG CO LTD MBEC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the past, the concrete continuous beam of the upper layer of the joint construction section was constructed by the bracket cast-in-place method, but the repeated installation and disassembly of the bracket formwork required a large amount of work, high labor intensity, and a long construction period; the bracket was located between the upper and lower beams, and the operating space was narrow and high. High risk of demolition

Method used

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  • Variable-breadth movable support and construction method thereof
  • Variable-breadth movable support and construction method thereof
  • Variable-breadth movable support and construction method thereof

Examples

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Embodiment 1

[0088] The following examples will further describe the construction procedures of longitudinally moving through holes and transversely moving across the width of this patent.

[0089] 1. The construction steps of floor formwork lateral movement are as follows:

[0090] as attached Figure 8 As shown, step one:

[0091] ① After the construction of the concrete box girder is completed, the vertical restraint of the floor formwork is released.

[0092] ②The drop mold cylinder (01-07) works to lower the formwork by 150mm as a whole. At this time, the mold bed is separated from the concrete box girder, and the bracket is supported on the supporting trolley (01-04).

[0093] ③The drop frame device (03-03) works to lower the mold bed by 150mm, check the performance of the drop frame device, and then lower the mold bed as a whole by 2900mm (2 working strokes).

[0094] as attached Figure 9 As shown, step 2: ① After the die is in place, rotate the luffing beams at both ends of th...

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Abstract

The invention relates to a variable-breadth movable support and a construction method thereof. A poured lower-layer railway concrete beam is used as a bearing, and an upper-layer box girder construction platform capable of moving longitudinally and transversely is used. The variable-breadth movable support has the advantages of all tubular pile supports, and longitudinal moving wheel sets and transverse moving trolleys are installed at the bottom of the support so that the purposes of longitudinal hole passing and transverse breadth passing of the movable support can be achieved. Secondly, inorder to avoid a highway frame pier capping beam, side wing formworks of the movable support are made into bendable structures, and supporting stand columns are designed to be telescopic stand columns; and in the hole passing or breadth passing process, the height of a body of the whole movable support is reduced in a manner that the side wing formworks are rotatably bent and the movable support is integrally lowered, so that it is guaranteed that the movable support can smoothly pass through a highway frame pier door opening. The operation mechanization degree of the whole movable support ishigh.

Description

technical field [0001] The invention is an amplitude-changing mobile support, which belongs to the technical field of bridge construction. Background technique [0002] In recent years, my country's investment in the infrastructure industry has continued to increase. In order to reduce the cost and shorten the construction period, it is necessary to simultaneously When building railway and highway bridges to connect lines, it has become a trend to choose road-rail bridges. [0003] In the past, the concrete continuous beam of the upper layer of the joint construction section was constructed by the bracket cast-in-place method, but the repeated installation and disassembly of the bracket formwork required a large amount of work, high labor intensity, and a long construction period; the bracket was located between the upper and lower beams, and the operating space was narrow and high. The risk of demolition is high. Contents of the invention [0004] The present invention p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D21/06
CPCE01D21/00E01D21/06
Inventor 董继红付国平余志威陶亚成郗玉兵王海涛腾辉刘财魏琪张正华张杭潘林
Owner THE 2ND ENG CO LTD MBEC
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