Aluminum alloy expansion joint

Abstract

The invention discloses an aluminum alloy expansion joint. The expansion joint is formed by an aluminum alloy center plate, aluminum alloy bases, fire protection layers, and a waterstop belt. The aluminum alloy center plate is installed in two aluminum alloy bases. The aluminum alloy base comprises an upper cover plate and a lower cover plate. The fire protection layers are bonded on surfaces of the aluminum alloy center plate and the upper cover plates of the aluminum alloy bases through a high-temperature resistant inorganic adhesive. The waterstop belt is installed on the lower part of the aluminum alloy center plate through the two aluminum alloy bases, and forms a concave expansion slot with the aluminum alloy center plate. The invention discloses the aluminum alloy expansion joint. The expansion joint is simple in structure and convenient in installation. Through using various kinds of new materials, relatively high compressive strength and relatively good fireproof performance and water seal performance are realized. The expansion joint has very high practical value.

Description

technical field [0001] The invention relates to an expansion joint, in particular to an aluminum alloy expansion joint, and belongs to the technical field of expansion joints. Background technique [0002] Expansion joint refers to a structural joint set at an appropriate part along the construction joint direction of a building or structure in order to prevent cracks or damage to the structure due to climate temperature changes, such as thermal expansion and cold contraction. Expansion joints can divide the building components above the foundation such as walls, floors, roofs, etc. into two independent parts, so that buildings or structures can be expanded horizontally along the long direction. In addition to preventing cracks in buildings due to climate change, expansion joints can also meet the needs of buildings in terms of waterproofing and fire prevention through waterstops and fireproof belts. [0003] At present, although most of the expansion joints used in housi...

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Problems solved by technology

[0003] At present, although most of the expansion joints used in housing construction have achieved great improvements in terms of compressive strength, weather resistance, wear resistance, and stability, etc., in terms of fire resistance and water resistance, due to lack of use of corresponding The fireproof and waterproof materials or the selected fireproof and waterproof materials are not reasonable enough, which leads to poor fireproof and waterproof performance of the expansion joints, especially the expansion joints made of aluminum alloy are not designed for effective fireproofing, and it is easy to cause fire damage in case of fire. The deformation of the aluminum alloy material seriously affects the performance of the expansion joint

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