Construction process for pier top section of hollow thin-walled high pier column

A hollow, thin-walled, construction technology that is applied to bridge parts, erection/assembly bridges, bridges, etc., can solve problems such as low construction efficiency and high construction difficulty, and achieve tight construction schedules, fast construction speed, and easy control and adjustment Effect

Inactive Publication Date: 2018-10-19
MCC5 GROUP CORP SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem of low construction efficiency due to the high construction difficulty in the prior art, thereby providing a construction process for the top section of the hollow thin-walled high pier pier that reduces the construction difficulty and improves the construction efficiency

Method used

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  • Construction process for pier top section of hollow thin-walled high pier column
  • Construction process for pier top section of hollow thin-walled high pier column
  • Construction process for pier top section of hollow thin-walled high pier column

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Embodiment Construction

[0026] Such as Figure 1 to Figure 5 As shown, this embodiment provides a construction process for the top section of a hollow thin-walled high pier column, using a sliding form device 10 to construct the pier column 20, wherein the sliding form device 10 includes an outer form 11 and a The inner mold 12 in the mold 11 includes the following steps: Step S1: When the sliding form device 10 slides up to the variable cross-section position of the pier column 20, the construction of the embedded part 30 is carried out, wherein the embedded part 30 It includes a pre-embedded steel plate 31 and a pre-embedded steel bar 32 fixed on the pre-embedded steel plate 31, wherein the pre-embedded steel plate 31 is arranged on the inner side of the pier column 20; Remove the pier column 20, and then install the bracket 40 on the pre-embedded steel plate 31; Step S3: Install the prefabricated variable-section formwork 50 on the bracket 40; Step S4: Reinforce the pier column 20 Construction, a...

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Abstract

The invention relates to a construction process for a pier top section of a hollow thin-walled high pier column. The pier column is constructed by using slip form equipment, wherein the slip form equipment comprises an external mold and an internal mold which is positioned in the external mold. The construction process for the pier top section of the hollow thin-walled high pier column comprises the following steps of constructing an embedded part when the slip form equipment slides to a variable section part of the pier column, wherein the embedded part comprises an embedded steel plate and an embedded reinforcement which is fixed on the embedded steel plate, wherein the embedded steel plate is arranged on the internal side of the pier column; dismantling the internal mold from the pier column; mounting a bracket on the embedded steel plate; mounting a prefabricated variable section template on the bracket; performing reinforcement construction on the pier column; pouring concrete tothe pier column; continuing to lift the external mold; and pouring the concrete to the external mold. According to the construction process for the pier top section of the hollow thin-walled high piercolumn, the method is simple, the labor intensity is reduced and the difficulty coefficient is reduced.

Description

technical field [0001] The invention relates to the technical field of bridge pier column construction, in particular to a construction process for the top section of a hollow thin-walled high pier column. Background technique [0002] With the development of highway traffic construction, there are more and more expressways in mountainous areas, and the proportion of bridges and tunnels in expressways is increasing. Due to the steep terrain and relatively large drop, bridges in mountainous areas are developing in the direction of large spans, cantilevers, and high piers. High piers of tens of meters or even higher appeared one after another. Generally, the high piers adopt hollow thin-walled piers, and the hollow thin-walled piers have relatively high torsional moment of inertia, so the stability is relatively good. [0003] At present, when constructing the top of hollow thin-walled high pier, the climbing formwork technology is used: after pouring a section of formwork, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
Inventor 陈吉武张明勇郑炜
Owner MCC5 GROUP CORP SHANGHAI
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