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Precast assembly process of prestressed concrete cylindrical hollow pier

A prefabricated and prestressed technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of low construction efficiency, unfavorable quality control, long construction period, etc., and achieve the effect of improving construction efficiency, shortening construction period and reducing self-weight.

Inactive Publication Date: 2010-09-15
CCCC FIRST HIGHWAY CONSULTANTS
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Problems solved by technology

[0004] The present invention provides a prefabricated assembly process of prestressed concrete cylindrical hollow bridge piers to overcome the problems of unfavorable quality control, low construction efficiency and long construction period in the prior art

Method used

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  • Precast assembly process of prestressed concrete cylindrical hollow pier
  • Precast assembly process of prestressed concrete cylindrical hollow pier
  • Precast assembly process of prestressed concrete cylindrical hollow pier

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Embodiment Construction

[0031] The present invention will be described in detail below with reference to the drawings and embodiments.

[0032] see Figure 1 to Figure 5 , a prefabricated assembly process of prestressed concrete cylindrical hollow pier, comprising the following steps in sequence:

[0033] 1. Prepare prefabricated components: Hollow piers with a circular cross-section: including transition section 1 and standard section 2, wherein one end of the transition section 1 is provided with an installation step 8, and both ends of the standard section 2 are provided with installation steps 8; A solid pier top section 3, the lower end of the pier top section 3 is provided with an installation step that can be nested and matched with the installation step on the standard section 2, and an annular prestressed tension anchoring construction groove 10 is provided on the outer ring of the upper end;

[0034] The annular wall of said hollow pier column is longitudinally provided with a reserved ...

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Abstract

The invention relates to a precast assembly process of a prestressed concrete cylindrical hollow pier. The traditional process has the defects that construction period is longer, the cast-in-situ construction is greatly influenced by environment, and the construction quality can not be controlled easily. The precast assembly process of the prestressed concrete cylindrical hollow pier, which is provided by the invention, mainly comprises the following ten steps of: preparing a precast component, casting a bearing platform in situ, installing a transition section, installing a standard section, installing a pier top section, stretching a prestressed thick steel bar and anchoring at the part of a stretching and anchoring construction groove, grouting, casting concrete at the part of the prestressed stretching and anchoring construction groove at the upper end of the pier top section, protecting the anchoring end of the prestressed thick steel bar in a sealing way, and the like. The invention can save a large number of building materials, fully exert the action of high-strength materials and simultaneously shorten the construction period, is beneficial to quality control, and has high construction efficiency.

Description

technical field [0001] The invention relates to the technical field of design and construction of highway bridge piers, in particular to the design and construction technology of equal-section cylindrical bridge piers, and further relates to a prefabricated assembly process of prestressed concrete cylindrical hollow bridge piers. Background technique [0002] At present, most of the cylindrical piers of domestic highway bridges adopt solid cross-section, the material is ordinary reinforced concrete, and the construction technology mainly adopts the method of cast-in-place. The main disadvantages of this traditional process are: the construction period is long, the construction of cast-in-place is greatly affected by the environment, and the construction quality is not easy to control. Taking urban bridges as an example, after the completion of the foundation construction, in the subsequent construction of the bridge piers, each process needs to be carried out on site (bindin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02
Inventor 牛宏周江刘士林赵永国叶莉岳振民李雅娟陈金涛崔贵云来猛刚
Owner CCCC FIRST HIGHWAY CONSULTANTS
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