High-temperature-resistant building steel structure
A technology of steel structure and high temperature resistance, applied in building components, building structures, buildings, etc., can solve the problems of loss of metal strength, collapse of steel structure, reduction of strength of steel structure, etc., to prevent and weaken strength, delay strength weaken, The effect of stable steel structure
Active Publication Date: 2014-06-18
魏冉 +1
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Problems solved by technology
No matter which method is used, it is to adopt passive protection or change the external environmental conditions to try to solve the high temperature resistance of the steel structure. These two methods cannot fundamentally solve the high temperature resistance of the steel structure, and the second is also limited by the fire extinguishing time. Generally, the fire resistance time limit of steel structures is 2-3 hours. If the fire extinguishing time is too long, the temperature of all insulation materials and the temperature of the steel structure will tend to the limit, the protection ability will be greatly weakened, and the strength of the steel structure will be reduced or the metal will be lost. Strength causes steel structures to collapse
In addition, once a steel structure building catches fire, it cannot be directly extinguished with water. If it is watered during fire fighting, its damage will be more serious.
Method used
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[0033] Such as figure 1 , a high-temperature-resistant building steel structure, including H-shaped or C-shaped building steel, said building steel includes steel columns 1 and steel beams 7 . The heat pipes for heat transfer are provided along the length direction of the building section steel. Taking the steel columns 1 and steel beams 7 on the left and right sides as an example, the first heat pipe 2 is arranged on the left steel column 1, and the steel beams 7 on the left side The beam 7 is provided with a second heat pipe 3, and the first heat pipe 2 and the second heat pipe 3 extend out of the room of the roof in parallel at the part of the steel beam 7; similarly, a third heat pipe 4 is provided on the right steel column, and a third heat pipe 4 is arranged on the left steel column. The fourth heat pipe 5 is arranged on the side steel beam, and the third heat pipe 4 and the fourth heat pipe 5 extend parallel to the part of the steel beam and pass through the outside of ...
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The invention discloses a high-temperature-resistant building steel structure, and relates to the field of buildings. The high-temperature-resistant building steel structure is used for solving the problem that the strength of the steel structure in a fire is reduced. The high-temperature-resistant building steel structure comprises a building section steel with an H-shaped structure or a C-shaped structure; the building section steel is provided with heat pipes for transferring heat along the length direction; a heat-transferring combining surface is arranged between the heat pipes and the building section steel; and the evaporating sections of the heat pipes are positioned indoors, and the condensing sections of the heat pipes are positioned outdoors and are provided with cooling water spraying systems. The high-temperature-resistant building steel structure disclosed by the invention has the advantages that not only can the reduction of the performance of the steel structure be prevented and delayed, but also the damage degree of the building is avoided or reduced, and simultaneously the precious escaping time is obtained for staff in the building.
Description
technical field [0001] The invention relates to the construction field, in particular to a high-temperature-resistant building steel structure. When a fire occurs in a steel structure house, it can prevent or delay the strength of the steel structure of the house from being reduced due to high temperature, resulting in the collapse of the steel structure and endangering people's lives. Background technique [0002] According to the "General Rules for Civil Building Design", buildings higher than 24 meters or more than 10 stories are high-rise buildings. With the development of the economy, a number of buildings higher than 100 meters have emerged. They are called super high-rise buildings, and the public is used to calling them "skyscrapers". High-rise buildings—especially high-rise buildings with strange appearances, are generally steel structures or partially steel structures. [0003] Commonly used building structural steels are Q235, Q345, etc., because the carbon in t...
Claims
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IPC IPC(8): E04B1/24E04B1/94E04B1/74
Inventor魏冉李致远
Owner魏冉