Anti-explosion protection of high-rise building glass curtain wall!
[China Glass Network] I. Study the significance of anti-explosion protection of building glass curtain wall Recycled Stitch Bonded Fabric,R-PET Stitch Bonded Fabric,Polyester Stitch Bonding Fabric Home,Stitch Bonded Fabrics yizheng jiayu textile products co.,ltd , https://www.jystitchbond.com
As a high-quality exterior decoration structure, the glass curtain wall integrates architectural functions, architectural technology and art. It marks the growing trend of urban construction to modernization, and also satisfies people's function and art. Demand, when the glass curtain wall became the preferred of some important landmarks, it was gradually being used by some criminals as a better target.
There are many explosions happening all the time in the world. In recent years, there have been more and more incidents of terrorist activities and explosions that endanger people’s lives and property. The power of explosions has gradually increased, and the forms of explosions are diverse. Most common criminals use cars or human bodies as bombs. Today, terrorists choose to use densely populated, large public buildings, high-cost and luxuriously decorated glass curtain walls as targets.
The glass curtain wall serves as the peripheral structure of the entire building, and its anti-explosive ability is directly related to the lifeline of the building. If the curtain wall glass encounters vibration, the glass fragments will splash everywhere. To a large extent, people are killed by this high-speed splash and have powerful power. If the glass can be intact after being subjected to a strong impact, it is difficult for the shock wave to enter the room beyond the glass, so that people and property in the room can be protected from the damage, and the indoor things can be prevented from falling down the floor and hurting the building. Under the people or buildings. Therefore, the enhanced anti-explosion performance of the glass curtain wall can well avoid the casualties of the attacked personnel.
With the rapid development of China's modern economy and the increasing living standards of people, the high-rise buildings in China are also born one after another in people's sights. People's requirements for buildings are getting higher and higher. The glass curtain wall not only presents many advantages such as wind, rain, lighting, heat insulation, etc. It also caters to people's critical eyes with its personality, beauty and visual impact. However, since the glass itself is easily broken, in the construction, people have to consider many anti-explosion factors to ensure that the glass curtain wall can withstand various unknown attacks.
Second, the anti-explosive materials commonly used in glass curtain walls
2.1 Tempered glass tempered glass is widely used in high-rise buildings because of its high hardness and strength. Tempered glass is a product that rapidly cools the float glass after it has been heated to a certain extent. Because the temperature changes too fast, the outside is quickly solidified by cold, and the inside is too late to react. It can only be slowly cooled, thus increasing the pressure on the glass surface. The strength of the glass is generally three to five times higher than that of ordinary glass, and the internal tensile stress increases the heat resistance and stability of the glass. In this way, the tempered glass can withstand a range of external impact and temperature difference changes, and, in the face of excessive impact force, will not splash, but become a whole piece of glass of honeycomb small particles. Therefore, tempered glass not only has two advantages of high strength and high heat resistance stability, but also high safety performance.
2.2 High-strength single-piece fireproof glass The high-temperature calcination of float glass is treated with special chemical substances to replace the metal sodium on the glass surface for more than twenty hours to form a single piece of fireproof glass. Since it is fireproof glass, there is no doubt that it has a good fireproofing effect, and it can remain as it is in a flame of up to 10000C for a long time. The same thickness, high strength single piece fire resistant glass is 6 to 12 times stronger than float glass. In the event of an explosion, it can extend the time people leave the scene in an emergency, as well as gain time for the rescue.
2.3 Anti-bomb glass Anti-bomb glass is one of the safer glass produced in China. It can effectively resist the shock wave generated by the explosion, the thermal shock wave generated by the high temperature flame and the bullet shock wave. The anti-explosion protection of the glass curtain wall is mainly aimed at the sharply expansive shock wave and huge vibration generated by the explosion. To withstand the great power of the bomb attack, the glass must withstand the destructive effects of various shock waves and debris attacks.
2.4 Safety Explosion-proof Glass Film Safety Explosion-proof glass film not only prevents glass fragments from splashing everywhere, but also resists thieves breaking glass into important areas and protecting artworks from damage. From the bulletproof, anti-theft and explosion-proof safety performance of glass, we can choose a better surface material to solve this problem fundamentally from the design.
2.5 Curtain wall keel curtain wall keel generally selects high-strength steel to meet the peak pressure generated during the explosion, and the steel surface should be treated with fireproof material. This is to resist a variety of high-intensity explosion pressures.