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Round tube web girder and manufacturing method thereof

A web beam and round tube technology, applied in the direction of bridges, bridge parts, bridge construction, etc., can solve problems such as the inability to fully meet the requirements of urban construction, and achieve unique aesthetic effects, good economy, and small self-weight effects.

Active Publication Date: 2014-04-16
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the development of my country's economy and society, the traditional bridge structure can no longer fully meet the requirements of urban construction.

Method used

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  • Round tube web girder and manufacturing method thereof
  • Round tube web girder and manufacturing method thereof
  • Round tube web girder and manufacturing method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0031] The present invention also provides a method for preparing a circular tube web beam, the method comprising the following steps:

[0032] Step 1: Prepare the upper flange plate 1, the lower flange plate 3 and the hollow tube 1;

[0033] Step 2: Arrange the lower flange plate 3 on the bridge support. If the bridge span is large, you need to arrange temporary supports between the bridge spans;

[0034] Step 3: Install the end beam 5 on the lower flange plate 3 at the fulcrum by welding or bolting;

[0035] Step 4: arranging the hollow tube 1 on the lower flange plate 3;

[0036] Step 5: Install the connecting piece 4 between the hollow round tube 1 and the lower flange plate 3 to connect and fix the hollow round tube 1 and the lower flange plate 3, install the connecting piece 4 between the hollow round tube 1 and make the hollow round tube 1 Fixed connection between;

[0037] Step 6: Arrange the upper flange plate 2 on the hollow circular tube 1, and install the connec...

Embodiment 1

[0038] Embodiment 1: a kind of circular tube web beam, comprising a series of circular steel tubes 1 arranged sequentially along the bridge direction, the lower flange steel plate 3 connected with the circular steel tube 1 through the connector 4, and the round steel tube 1 connected with the circular steel tube 1 through the connector 4 Upper flange steel plate 2, and end beam 5.

[0039] Compared with the circular tube web beam with reinforced concrete, the circular tube web beam with steel structure is lighter in weight, but the cost is higher. Due to the light weight, the construction process of factory prefabrication and on-site assembly can be adopted during construction. The amount of on-site construction is small and the construction speed is fast. It is more suitable for bridge projects that require rapid construction (such as temporary bridges that require rapid construction), or bridge projects that require small self-weight.

[0040] Proceed as follows:

[0041]...

Embodiment 2

[0048] Embodiment 2: A circular tube web beam, including a series of reinforced concrete circular tubes 1 arranged sequentially along the bridge direction, a reinforced concrete lower flange plate 3 connected to the circular tubes 1 through connectors 4, and connected to the circular tubes through Reinforced concrete upper flange plate 2 connected by piece 4.

[0049] Compared with the circular tube web beam with steel structure, the circular tube web beam with reinforced concrete structure is heavier, but the cost is lower. Due to the heavy weight, factory prefabrication and on-site cast-in-place flange plate construction techniques can be used during construction. Although the circular tube web beam with reinforced concrete flange plate has a large structural weight, the surface of the structure does not need anti-rust coating.

[0050] Proceed as follows:

[0051] 1) Hollow round pipes are prefabricated in the factory and delivered to the site;

[0052] 2) Arrange temporar...

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Abstract

The invention provides a round tube web girder and a manufacturing method thereof and belongs to a main girder structural style applied to bridge construction. According to the structure, a traditional girder type thin-wall web structure is replaced with a hollow round tube (steel tube or reinforced concrete tube), and an upper frange plate and a lower frange plate are connected with the hollow round tube into a whole through connecting pieces. The structure is suitable for an upper structure of a simply supported girder bridge with a small span, and can also be used as a girder of a cable system bridge or a girder type component, both aesthetic and capable of bearing force, in a building structure. The structure can be constructed in a factory prefabricating and on-site assembling mode. The working period can be effectively shortened. Due to the fact that light can pass through the hollow part of the round tube, the structure has a unique aesthetic effect. Due to the adoption of the horizontally through structural style, the windward area of the structure is effectively reduced, and the negative influence of wind power on the structure is reduced. The round tube can be made to be a single-layer style or a multi-layer style according to aesthetic or force-bearing requirements, so that the diversified appearance effect and mechanical property are achieved.

Description

technical field [0001] The invention relates to a circular tube web beam, which can be used in civil engineering. Background technique [0002] In civil engineering, the traditional beam structure adopts the upper flange plate, bottom plate and web to form I-shaped, box-shaped and other cross-sections, in which the upper flange plate and the bottom plate mainly bear the bending moment, and the web mainly bears the shear force. The materials constituting each part of the beam body are made of reinforced concrete, steel, etc. according to engineering needs and economical requirements. Up to now, the most commonly used structural forms in bridge engineering with small and medium spans (single span less than 40m) are prestressed reinforced concrete box girders, T beams and hollow slab girders; The most commonly used structural form in long-diameter (span over 150m) bridge engineering is the box girder. [0003] With the development of my country's economy and society, the trad...

Claims

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Application Information

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IPC IPC(8): E01D19/00
Inventor 杨明荣学亮芦旭朝江神文高达文郭昊霖项莲贡玮
Owner SOUTHEAST UNIV
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