Fire test furnace of flexural member

Abstract

The invention belongs to the technical field of fire test devices, and specifically relates to a fire test furnace of a flexural member. According to the fire test furnace, the problem that the flexural member in a steel structure is free of the impact of high-pressure water in an experiment, and the influences of various environments in a whole fire process cannot be completely and truly simulated is solved. The fire test furnace of the flexural member is formed by a fire simulation chamber, a heating device, a control system, a loading device, a fixing device, a high-pressure water-outlet system, a drainage device and an image acquisition device, the fire simulation chamber is formed by a shell and a furnace lining, an end part of the shell is provided with a chamber door, the shell is provided with observation glass capable of observing the condition in the fire simulation chamber, an exhaust fan is arranged below the furnace lining of the fire simulation chamber, and ventilation openings are arranged on the fire simulation chamber.

Description

technical field [0001] The invention belongs to the technical field of fire test devices, and in particular relates to a fire test furnace for bending components. Background technique [0002] With the extensive use of steel in construction projects, its performance in various environments has increasingly become the focus of attention. In recent years, a fire has caused people to pay attention to the performance of steel in this situation, and In buildings, flexural members such as beams and columns play a vital role as the load-bearing structure of a building. However, their performance will deteriorate when the flexural members are exposed to high temperatures during a fire. At the same time, during the fire extinguishing process, the high-pressure water will sharply reduce its surface temperature, causing the steel to shrink violently, and its own ultimate compressive strength and flexural strength will be greatly reduced. The flexural member is another kind of load. Wh...

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Problems solved by technology

[0003] According to the present invention, the bending member of the steel structure is not impacted by high-pressure water in the experiment, and the influence of various environments in the whole fire process cannot be completely simulated, and the damage degree of the bending member normally cooled at room temperature is compared with The degree of damage impacted by high-pressure water is very different, and a fire test furnace for bending components is provided.

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