Aluminum alloy structure fire prevention method, node structure and fire prevention system
A technology of aluminum alloy and joints, which is applied in fire protection, building structure, building components, etc., can solve the problems such as the decline of structural bearing capacity, and achieve the effects of reducing project cost, good heat conduction, and ensuring strength
Active Publication Date: 2019-12-06
SHANGHAI MECHANIZED CONSTR GRP
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Problems solved by technology
[0006] Aiming at the problem that when the aluminum alloy structure of a building encounters a fire in actual use, its own temperature rises, resulting in a decrease in the bearing capacity of the structure, the first purpose of the present invention is to propose a fire prevention method for an aluminum alloy structure. Using the above method, the aluminum alloy is used as the main body of the structure When the building encounters a fire, the strength and bearing capacity of the aluminum alloy structure will not be reduced, ensuring the safety of the building
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[0069] Compared with the dominant steel in the field of architectural space structures, aluminum alloy materials have the characteristics of light weight, corrosion resistance and easy processing. The reduction of the structure's self-weight helps to reduce the cost of supporting structures and foundation projects. Its good anti-corrosion performance can save expensive anti-corrosion costs, anti-corrosion treatment and daily maintenance costs, which is especially suitable for public buildings such as swimming pools with indoor water environments. Its good processing performance makes the aluminum alloy structure well meet the requirements of complex architectural shapes. However, the strength of aluminum alloy materials commonly used in construction begins to decrease at a temperature of about 100°C, and the strength decreases by half when the temperature exceeds 200°C. Therefore, it is necessary to take effective measures to prevent the excessive temperature rise of aluminum...
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The invention discloses an aluminum alloy structure fire prevention method, a node structure and a fire prevention system. The method comprises the steps that cavities are correspondingly formed in anode and rod pieces of an aluminum alloy structure; the node is connected with the rod pieces according to the construction configuration, and the rod pieces and the cavity in the node are communicated to form water circulation flow channels; anti-freezing circulating water is injected into the water circulation flow channels, and driving parts for driving the anti-freezing circulating water in the water circulation flow channels to flow are arranged; a first triggering condition for triggering the driving parts to act is arranged; after the first triggering condition is triggered, the drivingparts drive the anti-freezing circulation water in the water circulation flow channels to flow; and the node is made of stainless steel, and the rod pieces are made of an aluminum alloy. According tothe aluminum alloy structure fire prevention method, the node structure and the fire prevention system, an aluminum alloy structure component body is used as a conveying pipeline of water, and by designing a special node form, water circulates inside the structure body; and when a fire occurs, the heat on the aluminum alloy component is taken away by the circulation of water, so that the bearingcapacity of the bearing aluminum component cannot be lost due to the too high temperature rise.
Description
technical field [0001] The invention relates to the technical field of fire prevention of building structures, more specifically, it relates to a method for fire prevention of an aluminum alloy structure, a node structure and a fire prevention system. Background technique [0002] Aluminum alloys are widely used in the aerospace field. In recent years, due to its light weight, corrosion resistance, and easy processing, the application of aluminum alloy structures in the field of construction engineering has gradually increased. Many aluminum alloy structure buildings have been built in the fields of industrial buildings, sports buildings and exhibition buildings in China. Most of the component sections are I-shaped profiles, and the joints are plate joints, which are connected by stainless steel bolts. There are also individual round pipe profiles and bolt ball joints. [0003] Similar to other metal materials, the strength of aluminum alloy materials decays rapidly at hi...
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Login to View More IPC IPC(8): E04B1/24E04B1/94A62C35/60
CPCA62C35/60E04B1/24E04B1/2403E04B1/94E04B1/941E04B2001/2406E04B2001/949
Inventor 周锋吴晓风郑祥杰谷凯张良兰吴欣之
Owner SHANGHAI MECHANIZED CONSTR GRP