Prefabricated stiff concrete-filled steel tube and reinforced concrete assembled pier and construction process thereof

A technology of steel pipe concrete and reinforced concrete, which is applied in the direction of erecting/assembling bridges, bridges, bridge parts, etc., can solve problems such as steel pipe corrosion, and achieve the effects of high bearing capacity, low construction noise, and standardized component manufacturing

Inactive Publication Date: 2020-03-27
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of bridge pier has the advantages of fast construction speed, high bearing capacity, and good seismic performance. However, because the steel pipes in the steel pipe concrete at the bottom are exposed to the natural environment, especially when used in bridges, they will be threatened by steel pipe corrosion and require long-term maintenance.

Method used

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  • Prefabricated stiff concrete-filled steel tube and reinforced concrete assembled pier and construction process thereof
  • Prefabricated stiff concrete-filled steel tube and reinforced concrete assembled pier and construction process thereof
  • Prefabricated stiff concrete-filled steel tube and reinforced concrete assembled pier and construction process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] In this embodiment, the prefabricated steel tube concrete and reinforced concrete piers are connected by grouting sleeve connectors 15, and the first bottom segment 1, the first middle segment 3, and the first top segment 4 are square columns.

[0079] Such as Figure 1 to Figure 10 and Figure 33 to Figure 37 As shown, the prefabricated steel pipe concrete and reinforced concrete assembled bridge pier includes a foundation 1, a first bottom segment 1, a first middle segment 3, and a first top segment 4, and the foundation 1 is connected to the foundation through a bottom anchor bolt 6 The backing plate 12 is connected to one end of the first bottom segment 1, the other end of the first bottom segment 1 is connected to one end of the first middle segment 3, the other end of the first middle segment 3 is connected to one end of the first top segment 4, and the other end of the first middle segment 3 is connected to one end of the first top segment 4. The other end of a ...

Embodiment 2

[0097] The difference between this embodiment and Embodiment 1 is that the first bottom segment 1, the first middle segment 3 and the first top segment 4 adopt cylinders, such as Figure 11 to Figure 19 shown.

Embodiment 3

[0099] In this embodiment, the prefabricated steel tube concrete and the reinforced concrete assembled bridge piers are connected by connecting steel plates, and the second bottom segment, the second middle segment, and the second top segment use square columns.

[0100] Such as Figure 20 to Figure 26 As shown, the prefabricated steel pipe concrete and reinforced concrete assembled bridge pier includes a foundation 1, a second bottom segment, a second middle segment, a second top segment and a cover beam 5, and the foundation 1 passes through the bottom anchor bolt 6 and The base plate 12 is connected to one end of the second bottom segment, the other end of the second bottom segment is connected to one end of the second middle segment through embedded bolts 20, and the other end of the second middle segment is connected to the second top end through embedded bolts 20. The segments are connected at one end, and the other end of the second top segment is connected with the cov...

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Abstract

Disclosed are a prefabricated stiff concrete-filled steel tube and a reinforced concrete assembled bridge pier which are respectively in two forms of connecting with a grouting sleeve connector and aconnecting steel plate. The assembled pier connected with the grouting sleeve connector comprises a first bottom section, a first middle section, a first top section, a foundation and a bent cap. Theassembled pier connected through the connecting steel plates comprises a second bottom section, a second middle section, a second top section, a foundation and a bent cap. The invention relates to a construction process thereof. The construction process comprises the following steps: step 1, component manufacturing: manufacturing a first bottom section, a first middle section, a first top section,a foundation and a bent cap or a second bottom section, a second middle section, a second top section, a foundation and a bent cap; step 2, mounting components. The connecting technology of the prefabricated sections and the foundation, the connecting technology of the prefabricated sections and the connecting technology of the prefabricated sections and the bent cap are designed, it is guaranteed that all the prefabricated parts are connected into a whole, and the structure is jointly stressed and deformed harmoniously.

Description

technical field [0001] The invention belongs to the technical field of bridge engineering, and in particular relates to a bridge pier assembled with prefabricated steel tube concrete and reinforced concrete and a construction process. Background technique [0002] The pier column of the bridge substructure is the main force-bearing component of the bridge. In addition to sufficient compressive, bending, shearing and good durability, it must also have good seismic ductility and energy dissipation capacity. At present, most of the piers and columns in bridges at home and abroad adopt cast-in-place concrete structures. The construction of cast-in-place concrete requires many on-site construction procedures, which are time-consuming and which can negatively affect the traffic flow, the environment and the safety of the work area, especially in terms of the construction environment, construction space, climatic conditions and environmental protection conditions Under the constra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/02E01D21/00E01D101/26E01D101/30
CPCE01D19/02E01D21/00E01D2101/26E01D2101/268
Inventor 陈百玲高海洋李雪王连广倪磊张雪纯胡嘉琪
Owner NORTHEASTERN UNIV
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