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Double-wall hollow pier column top support connecting joint and construction method

A technology for connecting nodes and hollow piers, applied in construction, bridge construction, bridge parts, etc., can solve problems such as restricting the application of composite pipe-concrete-steel double-walled hollow piers, avoid adverse effects, facilitate construction, construction handy effect

Pending 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

However, there is no existing composite tube-concrete-steel tube double-wall hollow pier column top support joint technology, which limits the application of composite tube-concrete-steel tube double-wall hollow pier columns in bridge engineering

Method used

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  • Double-wall hollow pier column top support connecting joint and construction method
  • Double-wall hollow pier column top support connecting joint and construction method
  • Double-wall hollow pier column top support connecting joint and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0041] See attached Figure 2a , 2b , 2c, 2d. in, Figure 2a is A-A sectional view, Figure 2b is the B-B sectional view, Figure 2c is the C-C sectional view, Figure 2d It is a D-D sectional view.

[0042] In this embodiment, the composite pipe-concrete-steel pipe double-walled hollow pier column top support connection node includes a hollow section, a solid section, a gear-shaped cover plate and a bridge support supported on the gear-shaped cover plate from bottom to top. seat; the hollow section is composed of composite pipe, concrete interlayer, and hollow steel pipe from outside to inside, and the hollow steel pipe inside the hollow section is a cavity; the solid section is composed of composite pipe, concrete interlayer, steel pipe and The steel pipe is filled with concrete; the hollow section and the solid section are separated by an inner partition steel plate; the gear-shaped cover plate has a hole in the center for pouring the concrete in the steel pipe of the...

Embodiment 2

[0052] See attached Figure 3a , 3b , 3c, 3d. in, Figure 3a is A-A sectional view, Figure 3b is the B-B sectional view, Figure 3c is the C-C sectional view, Figure 3d It is a D-D sectional view.

[0053] In this embodiment, for the hollow section and solid section of the node, the cross-sectional profile of the composite pipe is circular, with an inner diameter of 800mm and a thickness of 12mm; the steel pipe is a single single-cavity steel pipe, and the cross-sectional profile is square. The outer length is 420mm and the thickness is 20mm;

[0054] In this embodiment, the shape and size of the cross-sectional outer contour of the inner partition steel plate are consistent with the shape and size of the inner contour of the steel pipe cross-section in the hollow section, which is a square (see Image 6 The square inner partition steel plate in the middle) has a side length of 380mm and a thickness of 24mm.

[0055] In this embodiment, the height of concrete filled ...

Embodiment 3

[0061] See attached Figure 4a , 4b , 4c, 4d. in, Figure 4a is A-A sectional view, Figure 4b is the B-B sectional view, Figure 4c is the C-C sectional view, Figure 4d It is a D-D sectional view.

[0062] In this embodiment, for the hollow section and solid section of the node, the cross-sectional profile shape of the composite pipe is square, the inner side length is 700 mm, and the thickness is 12 mm; the steel pipe is a single single-cavity steel pipe, and the cross-sectional profile shape is square. The outer length is 420mm and the thickness is 20mm;

[0063] In this embodiment, the shape and size of the cross-sectional outer contour of the inner partition steel plate are consistent with the shape and size of the inner contour of the steel pipe cross-section in the hollow section, which is a square (see Image 6 The square inner partition steel plate in the middle) has a side length of 380mm and a thickness of 24mm.

[0064] In this embodiment, the gear-shaped ...

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Abstract

The invention provides a double-wall hollow pier column top support connecting joint which is sequentially provided with a hollow section, a solid section, a gear-shaped cover plate and a bridge support supported on the gear-shaped cover plate from bottom to top, and the hollow section comprises a hollow section composite pipe, a hollow section hollow steel pipe and a concrete interlayer; the solid section comprises a solid section composite pipe, a solid section steel pipe, a solid section concrete interlayer and in-steel concrete filled in the solid section steel pipe, and an inner partition steel plate is arranged at the inner junction of the hollow section hollow steel pipe and the solid section steel pipe; a through hole is formed in the gear-shaped cover plate, one end of an anchor bolt is fixed to the bottom of the gear-shaped cover plate, the other end of the anchor bolt is anchored into the in-steel concrete, and stiffening ribs are fixed to the outer side of the solid section steel pipe. The invention further provides a construction method. The technical problem of connection between the double-wall hollow pier column and the upper structure of a steel bridge, a concrete bridge or a composite structure bridge is solved, and the double-wall hollow pier column top support connecting joint has the advantages of being reliable in connection, clear in force transmission, high in end bearing capacity, convenient to construct and the like.

Description

technical field [0001] The present invention relates to a civil engineering structure, in particular to a composite material tube-concrete-steel tube double-wall hollow pier column top support connection node, and also relates to a composite material tube-concrete-steel tube double-wall hollow pier column top support The construction method of the connection node. Background technique [0002] Composite tube-concrete-steel tube double-walled hollow piers are composed of external composite tubes, internal hollow steel tubes and concrete filled between the two tubes, which have superior corrosion resistance and seismic performance. The interlayer concrete in the composite tube-concrete-steel double-walled hollow pier column is double-constrained by the composite tube and the steel tube, and it is in a triaxial compression state when it is stressed, and the bearing capacity is greatly improved; at the same time, due to the composite tube-concrete - Hollow steel pipes are insta...

Claims

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Application Information

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IPC IPC(8): E01D19/04E01D21/00
CPCE01D19/04E01D21/00
Inventor 陈光明陆奕辰马学增何佳乐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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