Construction method for cast-in-place of single-column pier capping beam

A construction method and single-column pier technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve the problems of difficult control of hoop processing accuracy, long time-consuming design, processing and installation, and insufficient friction resistance of single-column pier, etc., to achieve Easy and fast installation and disassembly, saving manpower and saving materials

Pending Publication Date: 2021-12-24
CHINA RAILWAY FIRST GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of constructing the cast-in-place construction of the single-column pier cover beam of the highway bridge, when encountering a pier in water or a weak ground, it is difficult to erect the support in the water by the full-house support method; The method requires the use of special hoops. The design and processing accuracy of the hoops is difficult to control, and it is prone to insufficient friction with the single-column pier. It is difficult to bear the load of the cast-in-place construction of the cover beam. security incident

Method used

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  • Construction method for cast-in-place of single-column pier capping beam
  • Construction method for cast-in-place of single-column pier capping beam
  • Construction method for cast-in-place of single-column pier capping beam

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Embodiment Construction

[0054] Such as Figure 1 to Figure 4 Shown is a single-column pier cap beam cast-in-situ construction method, which method includes the following steps:

[0055] Step 1. Pre-embed the PVC pipe in the single column pier:

[0056] During the pouring construction process of the single column pier 2, a plurality of PVC pipes are pre-embedded in the single column pier 2 along the height direction of the single column pier 2; The length direction of the cover beam 15 is arranged vertically;

[0057] Step 2. Fabrication of supporting steel columns:

[0058] Step 201, weld two channel steel butt joints to obtain a channel steel column 8, and weld a bottom backing plate 9 at the bottom of the channel steel column 8, and weld a top plate 6 at the top of the channel steel column 8 to obtain a supporting steel column section ;

[0059] Step 202, multiple times according to the method described in step 201, to obtain a plurality of supporting steel column segments;

[0060] Step 3, ho...

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Abstract

The invention discloses a construction method for cast-in-place of a single-column pier capping beam. The method comprises the following steps: 1, pre-burying a PVC pipe in a single-column pier; 2, manufacturing a supporting steel column; 3, hoisting a pier attaching supporting frame; 4, constructing a longitudinal beam at the top of the supporting steel column; and 5, laying a capping beam template and casting the capping beam in situ. The method is simple in steps and reasonable in design, the pier attaching supporting frame is formed through construction of the supporting steel column and the longitudinal beam, the structure is simple and light, assembly and disassembly are convenient and fast, the supporting frame is installed on the pile foundation, and the method effectively adapts to construction of the single-column pier cover beam in water or in the soft stratum.

Description

technical field [0001] The invention belongs to the technical field of cast-in-situ cap beams for single-column piers, and in particular relates to a construction method for cast-in-situ cap beams for single-column piers. Background technique [0002] At present, in the process of cast-in-situ construction of single-column pier cover beams of highway bridges, the cast-in-place construction of pier top cover beams adopts the full support method, hoop method, and steel pipe column erection method to realize the cast-in-situ construction of single-column pier cover beams. construction. However, in the process of constructing the cast-in-place construction of the single-column pier cover beam of the highway bridge, when encountering a pier in water or a weak ground, it is difficult to erect the support in the water by the full-house support method; The method requires the use of special hoops. The design and processing accuracy of the hoops is difficult to control, and it is pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D21/00E01D19/02E01D19/00
CPCE01D21/00E01D19/02E01D19/00
Inventor 王亚美徐宏马鹏安欢杨倩牛丽坤王秋会
Owner CHINA RAILWAY FIRST GRP CO LTD
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