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Fixed joint of double-wall hollow pier column and steel bridge and construction method

A technology for hollow piers and steel bridges, applied in bridge construction, bridges, buildings, etc., to achieve the effects of ensuring node safety, enhancing ductility, and avoiding stress concentration

Active Publication Date: 2021-12-24
广州市城建规划设计院有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the existing composite pipe-concrete-steel pipe double-wall hollow pier and steel bridge connection technology, the purpose of the present invention is to provide a composite pipe-concrete-steel double-wall hollow pier and steel bridge solidification Joint joints to solve the technical problems of the fixed connection between the composite tube-concrete-steel tube double-walled hollow pier column and the steel bridge

Method used

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  • Fixed joint of double-wall hollow pier column and steel bridge and construction method
  • Fixed joint of double-wall hollow pier column and steel bridge and construction method
  • Fixed joint of double-wall hollow pier column and steel bridge and construction method

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Experimental program
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Effect test

Embodiment 1

[0040] See attached Figure 2a , 3a , 4a, 5a. in, Figure 2a for figure 1 Middle A-A sectional view, Figure 3a is the B-B sectional view, Figure 4a is the C-C sectional view, Figure 5a It is a D-D sectional view.

[0041] In this embodiment, the composite pipe-concrete-steel pipe double-walled hollow pier column and the steel bridge fixed joint include a composite material pipe-concrete-steel pipe double-walled hollow pier section (referred to as the hollow section), a composite material pipe-concrete-steel pipe double-walled hollow pier Tube-concrete-steel tube double-walled solid pier section (solid section), composite tube-concrete-steel tube double-walled solid pier section (reinforced section) with steel pipe thickened, steel tube concrete transition section with longitudinal stiffeners (transition section ); a steel inner partition is set between the hollow section and the solid section to block the concrete in the steel pipe of the solid section, and the steel...

Embodiment 2

[0055] See attached Figure 2b , 3b , 4b, 5b. in, Figure 2b is A-A sectional view, Figure 3b is the B-B sectional view, Figure 4b is the C-C sectional view, Figure 5b It is a D-D sectional view.

[0056] In this embodiment, the cross-sectional contours of the outer composite pipes of the hollow section, solid section, and reinforced section are all circular, with an inner diameter of 800 mm and a thickness of 12 mm; the inner steel pipes of the hollow section, solid section, reinforced section, and transition section They are all single-cavity steel pipes, and their cross-sectional contours are square, with an outer length of 420mm; the thickness of the steel pipes in the hollow section and the solid section is the same, both 16mm; the thickness of the steel pipes in the reinforced section and the transition section is 20mm.

[0057] In this embodiment, the steel inner partition (see Figure 3b The three-dimensional schematic diagram in), the steel inner ring plate ...

Embodiment 3

[0063] See attached Figure 2c , 3c , 4c, 5c. in, Figure 2c is A-A sectional view, Figure 3c is the B-B sectional view, Figure 4c is the C-C sectional view, Figure 5c It is a D-D sectional view.

[0064] In this embodiment, the cross-sectional contours of the outer composite pipes of the hollow section, the solid section, and the reinforced section are all square, with an inner side length of 700mm and a thickness of 12mm; the inner steel pipes of the hollow section, the solid section, the reinforced section, and the conversion section They are all single-cavity steel pipes, and their cross-sectional contours are square, with an outer length of 420mm; the thickness of the steel pipes in the hollow section and the solid section is the same, both 16mm; the thickness of the steel pipes in the reinforced section and the transition section is 20mm.

[0065] In this embodiment, the steel inner partition (see Figure 3c The three-dimensional schematic diagram in), the stee...

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Abstract

The invention discloses a fixed joint of a double-wall hollow pier column and a steel bridge, which comprises a hollow section, a solid section, a reinforcing section and a conversion section, the hollow section, the solid section and the reinforcing section respectively comprise a composite material pipe, a steel pipe and a concrete layer between the composite material pipe and the steel pipe, and the conversion section comprises a steel pipe and stiffening ribs; the steel pipe and the stiffening ribs of the conversion section are used for being fixedly connected with a steel bridge; a steel inner partition plate is arranged between the steel pipe of the hollow section and the steel pipe of the solid section, a steel inner ring plate is arranged between the steel pipe of the solid section and the steel pipe of the reinforcing section, and a steel outer ring plate is arranged on the outer side of the junction of the steel pipe of the reinforcing section and the steel pipe of the conversion section. And one end of an anchor bolt is fastened on the steel outer ring plate, and the other end of the anchor bolt is anchored into the concrete layer between the composite pipe and the steel pipe of the reinforcing section. The invention further provides a corresponding construction method. The fixed joint solves the technical problem of fixed connection of the double-wall hollow pier column and the steel bridge, and has the advantages of being reliable in connection, gentle in rigidity transition, good in anti-seismic property and the like.

Description

technical field [0001] The invention belongs to the field of civil engineering, and in particular relates to a fixed joint between a double-walled hollow pier column and a steel bridge, and also relates to a construction method for the fixed joint between a double-walled hollow pier column and a steel bridge. Background technique [0002] Composite pipe-concrete-steel pipe double-walled hollow column is a composite member composed of an outer composite pipe, an inner hollow steel pipe and interlayer concrete between the two, which has a superior combination effect: the outer composite pipe has excellent corrosion resistance It provides protection for the steel pipe inside the component; the concrete is double restrained by the outer composite pipe and the inner steel pipe, and its compressive performance is greatly improved; the outward buckling of the steel pipe is restrained by the concrete, and its material strength can be fully utilized. The above-mentioned advantages of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/00E01D21/00
CPCE01D19/00E01D21/00Y02A30/30
Inventor 陈光明陆奕辰栗旭林佐宏谢攀成彤李召兵胡福南刘伟楠
Owner 广州市城建规划设计院有限公司
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