Bridge hollow-pier cantilever formwork and construction method thereof

A hollow pier and formwork technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of formwork debugging, difficulty in testing concrete decoration, cumbersome bolt connection and tightening process, etc. Simple construction process

Inactive Publication Date: 2019-07-09
中交中南工程局有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The installation requires all the bolts to be fastened and the process is cumbersome
The joints of the upper and lower forms of the steel formwork have been staggered, and because of the high-altitude operation, there are difficulties in the debugging and testing of the formwork and the modification of the concrete

Method used

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  • Bridge hollow-pier cantilever formwork and construction method thereof
  • Bridge hollow-pier cantilever formwork and construction method thereof
  • Bridge hollow-pier cantilever formwork and construction method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0038] see figure 1 , in this embodiment, a cantilever formwork for a bridge hollow pier, including an embedded system 1, an adjusting screw 2, an adjusting seat 3, a climbing cone 4, a high-strength screw 5, an embedded plate 6, a force bolt 7, and a wooden beam pick Frame 8, back corrugated fastener 9, diagonal brace support 10, main back corrugated 11, diagonal brace 12, rear moving trolley 13, platform pole 14, rear moving rack 15, tripod beam 16, tripod 17, hanging platform stand Rod 18 and suspended platform beam 19.

[0039] The bottom of the tripod 17 is connected to the suspension platform pole 18, and the bottom of the suspension platform pole 18 is connected to the suspension platform crossbeam 19; Embedded plate 6, high-strength screw 5 is connected to embedded plate 6, the diameter of high-strength screw 5 is 20mm, and high-strength screw 5 is provided with climbing cone 4, the thread diameter of the large end of climbing cone 4 is 30mm, and the diameter of small...

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Abstract

The invention discloses a bridge hollow-pier cantilever formwork and a construction method thereof and belongs to the technical field of road construction. The problems of long construction period, poor quality effect and high safety risk existing when an existing bridge high-pier column is in the form of a hollow pier and a shaped steel mold is adopted are solved. The bridge hollow-pier cantilever formwork is short in construction period, good in overall appearance quality, free of layered casting marks and does not need subsequent large-area modification, a construction process is simple, the technology is easy to master, the bridge hollow-pier cantilever formwork is convenient to operate and reliable in quality, is suitable for construction on a narrow site, is beneficial to clean and safe civilized construction on the site, creeping formwork equipment, a hanging operation platform and safety protectors are connected into a whole, aerial work is relatively safe, construction heightis not limited, a creeping formwork and the operation platform rise layer by layer, and compared with conventional formwork turnover construction, construction safety risks are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of road construction, in particular to a bridge hollow pier cantilever formwork and a construction method thereof. Background technique [0002] With the rapid development of my country's economy, my country's railway bridge industry is also developing rapidly. With the continuous increase in the construction of large-span sea-crossing and river-crossing bridges, hollow piers are generally used for bridge piers in bridge construction, and column piers are used for other bridge piers. Among them, the long-span rigid frame continuous beam refers to the rigid frame continuous beam with the total length of the porous span ≥ 100 meters and the single hole span ≥ 40 meters. [0003] The existing construction of hollow piers is usually carried out in the form of shaped steel formwork, the pier body is poured in sections of 4.5m, and the height of the first layer of formwork is 2.25m. The connection between the tem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
CPCE01D19/02E01D21/00
Inventor 周思峰张宁张笑天柯堰齐
Owner 中交中南工程局有限公司
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