Novel aluminum alloy-concrete combined beam

A concrete and aluminum alloy technology, applied in joists, girders, trusses, etc., can solve problems such as insufficient shear connection, achieve good economy and applicability, reduce production costs, and reduce deformation.

Inactive Publication Date: 2015-10-14
STATE GRID CORP OF CHINA +3
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing steel-concrete beams consist of I-beams or box beams, shear connectors and concrete panels poured on the top of the steel beams. Since the steel beams are not suitable for extrusion molding and welding is required for processing, they can only be formed I-shaped or box-shaped simple section, the concrete slab is connected to the steel beam on only one side, the shear connection is insufficient, and shear connectors are required, the concrete slab is exposed, and cracks are prone to cause durability problems

Method used

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  • Novel aluminum alloy-concrete combined beam
  • Novel aluminum alloy-concrete combined beam
  • Novel aluminum alloy-concrete combined beam

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Embodiment one: if figure 1 As shown, the technical solution includes an aluminum alloy profile 1 with a cavity. The aluminum alloy profile 1 is in a "T" shape and is divided into an upper part and a lower part. The upper part is wider than the lower part. The upper part of the aluminum alloy profile 1 is provided with A plurality of cavities, the cavities on the upper part of the aluminum alloy profile 1 are filled with concrete 2 . An aluminum alloy profile 1 with multiple cavities is integrally extruded.

[0019] In order to take both strength and production cost into account, the upper part of the aluminum alloy profile 1 is provided with four parallel cavities, the lower part of the aluminum alloy profile 1 is provided with one cavity, and the cavity in the lower part of the aluminum alloy profile 1 is not filled with concrete 2 ; Aluminum alloy profiles 1 with multiple cavities are integrally extruded. Among them, the cross-sectional area of ​​the cavity account...

Embodiment 2

[0023] The difference from Embodiment 1 is that the aluminum alloy profile 1 is in the shape of a "day", the upper part and the lower part of the aluminum alloy profile 1 are equal in width, and one or more cavities are provided in the lower part of the aluminum alloy profile 1, and the upper cavity of the aluminum alloy profile 1 and the The cavity in the lower part of the aluminum alloy profile 1 is staggered, such as figure 2 shown, or juxtaposed, such as image 3 shown. The "day" shape of the aluminum alloy profile 1 can further improve the strength of the composite beam and increase the bearing capacity.

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Abstract

The invention provides a novel aluminum alloy-concrete combined beam, and relates to a beam. The existing steel-concrete beam consists of an I-shaped beam or a box-shaped beam, an anti-shearing connecting element and a concrete slab cast on the top of the steel beam, and cannot simultaneously realize the anti-shearing force and the durability. The novel aluminum alloy-concrete combined beam comprises an aluminum alloy sectional material with a cavity, wherein the aluminum alloy sectional material is in a T shape or in a shape like a Chinese character 'ri', and is divided into an upper part and a lower part; the upper part is wider than the lower part; the upper part of the aluminum alloy sectional material is provided with a plurality of cavities; and the cavities of the upper part of the aluminum alloy sectional material are filled with concrete. The technical scheme has the advantages that the pressure-resistant capability of the concrete and good ductibility of the aluminum alloy sectional material are sufficiently realized; the strength and the force bearing capability of the beam are effectively improved; the problems that the combined beam has many welding processes, and the concrete slab can easily crack are solved; and good durability, economic performance and durability are realized.

Description

technical field [0001] The invention relates to a beam, in particular to a novel aluminum alloy-concrete composite beam. Background technique [0002] Existing steel-concrete beams consist of I-beams or box beams, shear connectors and concrete panels poured on the top of the steel beams. Since the steel beams are not suitable for extrusion molding and welding is required for processing, they can only be formed I-shaped or box-shaped simple section, the concrete slab is connected to the steel beam on only one side, the shear connection is insufficient, and shear connectors are required, the concrete slab is exposed, and cracks are prone to cause durability problems. Therefore, how to improve the ability of composite beam members to resist bending moments is of great significance for improving the performance and durability of building structures. Contents of the invention [0003] The technical problem to be solved and the technical task proposed by the present invention a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C3/293E04C3/29
Inventor 康纬胡文侃陈驹马兴端徐英龚永超斯坚
Owner STATE GRID CORP OF CHINA
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