Reinforced concrete pier stud with capping beam or irregular Y-shaped reinforced concrete pier stud once-forming construction method

A reinforced concrete and construction method technology, applied in the direction of bridges, bridge construction, erection/assembly of bridges, etc., can solve problems such as joint unevenness, grout leakage, etc., achieve quality effect improvement, change color difference, save labor and repair materials Effect

Inactive Publication Date: 2009-06-03
SHANGHAI CONSTR NO 5 GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, to provide a one-time forming construction method of a beam with a cover or a Y-shaped special-shaped reinforced concrete pier, which solves the phenomenon of uneven joints and grout leakage caused by pouring concrete with secondary support At the same time, it also solves the problem of color difference on the appearance, improves the appearance quality of pier columns, and ensures the aesthetic effect

Method used

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  • Reinforced concrete pier stud with capping beam or irregular Y-shaped reinforced concrete pier stud once-forming construction method
  • Reinforced concrete pier stud with capping beam or irregular Y-shaped reinforced concrete pier stud once-forming construction method
  • Reinforced concrete pier stud with capping beam or irregular Y-shaped reinforced concrete pier stud once-forming construction method

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Embodiment 1

[0021] In a rail transit project in Shanghai, the pier column interface size of 98# to 138# pier is 2500MMX2200MM, and the total height of the pier column cover beam is 6M to 6.2M.

[0022] 1. Template design:

[0023] The lower straight section pier column steel mold and the upper cap beam steel mold are designed to be assembled at one time, and the straight section formwork is composed of four A.B.C.D. pieces on four sides. The upper cover beam formwork consists of four sides and two arc bottom forms which are divided into six pieces of A.B.C.D.E.F. to form the formwork. After the formwork is completed, the ground trial assembly is carried out first to ensure that the assembly size is correct with decorative convex lines, the joints are flat, and the arc connection is smooth. , Welding and grinding, smooth transition, so as to reduce the seam marks. The straight line section is 100MM-200MM below the natural soil level to set the adjustment mold to the cap, which is convenie...

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Abstract

The invention relates to a construction technology of a viaduct reinforced concrete pier stud with a capping beam or irregular Y-shaped reinforced concrete pier stud. A reinforced concrete pier stud with a capping beam or irregular Y-shaped reinforced concrete pier stud once-forming construction method provided by the invention comprises the steps of designing a template, setting up scaffolds, binding a capping beam and reinforcing steel bars, installing the template and casting concrete, wherein, the step of designing the template is that a lower straight pier stud steel mould and an upper capping beam steel mould are designed as being capable of being assembled at a time; when the template is installed, a linear portion and the capping beam template are all installed piece by piece; the linear portion is installed in right angle; two lengthways lateral moulds of the capping beam template are installed, and then two transverse lateral circular arc bottom moulds and head end templates are installed. The method adopts the once-forming of a pier stud and a capping beam, thereby ensuring that the appearance quality effect of a product is improved greatly, the pier stud and the capping beam are integrated as a whole; and the method takes certain effect on beautifying the environment. The method can save labor and materials for repairing joints during the constructing process and changes the common fault of color difference caused by twice casting.

Description

technical field [0001] The invention belongs to the technical field of construction methods of viaducts with covered beams or special-shaped reinforced concrete pier columns. Background technique [0002] In the construction of conventional pier columns, the common practice is to make the formwork for the straight section of the standard section according to the change of the height of the pier column, and carry out the section construction of the formwork for the upper cover beam. When encountering a beam with a cover or a special-shaped pier column, the concrete for the lower straight section is poured first. , wait until the demolition strength is reached, remove the lower straight section formwork, and then add hoops to support the installation of the upper cover beam or hat formwork. Due to the secondary support and the secondary pouring of concrete, unevenness and grout leakage are likely to occur at the connection joints, and horizontal joint marks are easily formed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00
Inventor 沈学新
Owner SHANGHAI CONSTR NO 5 GRP CO LTD
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