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Replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier

A double-wall steel pipe, prefabricated assembly technology, applied in bridges, bridge parts, bridge construction and other directions, can solve the problems of long maintenance period, large on-site workload, environmental traffic impact, etc., and achieves simple construction method, convenient operation, and rapid replacement. Effect

Pending Publication Date: 2020-12-08
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, with the rapid development of my country's transportation infrastructure, especially urban expressways, urban viaducts occupy an important position. The huge construction demand has put forward higher requirements for construction quality and construction efficiency. The construction method of on-site concrete pouring has a long maintenance period. A large amount of work will have a great impact on the surrounding environment and traffic

Method used

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  • Replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier
  • Replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier
  • Replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier

Examples

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Effect test

Embodiment 1

[0066] See Figure 1 to Figure 9 As shown, this embodiment proposes a replaceable hollow double-walled steel pipe concrete 22 prefabricated assembled bridge pier, including a cap 1, a prefabricated pier column 2 arranged on the cap, and a cover beam 3 arranged on the prefabricated pier column 2 , The bearing platform 1, the prefabricated pier column 2 and the cover beam 3 are sequentially connected by flanges to form a whole.

[0067] see you again Figure 2 to Figure 3 As shown, the prefabricated pier column 2 is composed of an inner steel pipe 23, an outer steel pipe 21 sleeved outside the inner steel pipe 23, and a concrete 22 poured between the inner steel pipe 23 and the outer steel pipe 21, wherein the inner steel pipe 23 and the outer steel pipe 21 The central axis coincides. Concrete 22 adopts existing conventional concrete 22 with properties such as ultra-high strength.

[0068] see you again Figure 4 to Figure 5 As shown, the top of the prefabricated pier column...

Embodiment 2

[0078] See Figure 10 to Figure 17As shown, this embodiment proposes a replaceable hollow double-walled steel pipe concrete 22 prefabricated assembled bridge pier, including a cap 1, a prefabricated pier column 2 arranged on the cap, and a cover beam 3 arranged on the prefabricated pier column 2 , The bearing platform 1, the prefabricated pier column 2 and the cover beam 3 are sequentially connected by flanges to form a whole.

[0079] see you again Figure 11 As shown, the prefabricated pier column 2 is composed of an inner steel pipe 23, an outer steel pipe 21 sleeved outside the inner steel pipe 23, and a concrete 22 poured between the inner steel pipe 23 and the outer steel pipe 21, wherein the inner steel pipe 23 and the outer steel pipe 21 The central axis coincides. Concrete 22 adopts existing conventional concrete 22 with properties such as ultra-high strength.

[0080] see you again Figure 12 to Figure 14 As shown, the top of the prefabricated pier column 2 is pr...

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Abstract

The invention relates to a replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier which comprises a bearing platform, a prefabricated pier column arranged on the bearing platform and a bent cap arranged on the prefabricated pier column. The bearing platform, the prefabricated pier column and the bent cap are sequentially connected through flanges into a whole . Compared with the prior art, the replaceable hollow double-wall concrete-filled steel tube prefabricated assembled pier has the characteristics of light weight and high strength, flange connection is adopted, the construction method is simple, operation is convenient, the construction efficiency is high, factory prefabrication and on-site assembly are achieved, rapid construction can be achieved, rapid replacement can be achieved for the bridge pier column damaged after an earthquake, and traffic can be recovered in time.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering and relates to a replaceable hollow double-wall steel pipe concrete prefabricated assembled bridge pier. Background technique [0002] In recent years, with the rapid development of my country's transportation infrastructure, especially urban expressways, urban viaducts occupy an important position. The huge construction demand has put forward higher requirements for construction quality and construction efficiency. The construction method of on-site concrete pouring has a long maintenance period. The workload is large, which will have a great impact on the surrounding environment and traffic. At present, more and more concrete bridge components are being manufactured and processed in factories. After the components are manufactured, they are transported to the bridge site for assembly, which greatly reduces on-site operations, speeds up the construction progress, realizes rapid construc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D19/00
CPCE01D19/005E01D19/02
Inventor 王君杰刘猛
Owner TONGJI UNIV
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