【 Take you to know fireproof glass curtain wall 】
Fireproof glass curtain walls must have all the characteristics that curtain walls have. Such as wind pressure, rain, air leakage, in-plane deformation and other properties. As a glass curtain wall with fire protection function, in addition to the above functions, the more important is the fire protection function.
Smoke insulation design:
The structure of the curtain wall should achieve the effect of smoke insulation, first of all, if the sealing is better, not only the sealing mentioned in our curtain wall performance, but the sealing of fire prevention, and it should also have a better sealing effect within a certain time when the fire occurs. Therefore, the open-frame curtain wall and the unit curtain wall structure designed by the open system are not suitable for the structure of fireproof glass curtain wall. Compared with the ordinary curtain wall sealing design, two points should be paid attention to: first, the inner cavity sealing treatment of profiles, ordinary curtain wall design vertical material is connected, with the possibility of forming a chimney effect, in the design of fireproof glass curtain wall, it is necessary to seal the cavity with non-combustible materials. On the other hand, it is necessary to consider the sealing failure caused by the local thermal expansion deformation of the curtain wall when the fire occurs. Therefore, the connection part of the joint skeleton of the fireproof glass curtain wall must be waist shaped holes, and the sealant with good elasticity and fireproof performance should be used in the selection of sealing materials.
Fire insulation, integrity design:
The curtain wall should not collapse within the designed fire resistance time limit in the event of a fire, that is, the selected curtain wall structure and materials must have fire resistance. Therefore, the fire integrity design considers the connection between the curtain wall and the main body, followed by the selection of materials.
1. Fireproof glass curtain wall should be complete and independent.
Fireproof glass curtain wall, as the outer protective structure of the building, its function is to prevent the fire from spreading along the vertical. It is often just a piece or part of a curtain wall. In order to prevent it from collapsing in a fire, the curtain wall of the connected part should be completely separated from the skeleton structure and fully fixed with the main structure. If the plug-in connection of the conventional curtain wall is used, the fire will fail due to the collapse of the non-fireproof part.
2. Fireproof glass curtain wall structure should have a good ability to absorb heat deformation.
When a fire occurs, the metal skeleton of the curtain wall or partition is expanded by heat, and if it is not handled properly, the structure will be damaged due to expansion and extrusion, and the fire protection effect will not be achieved. Therefore, in the design, the use of long waist holes or other reserved deformation bits in the connection parts is a key issue to be considered in detail.
3. The material of fireproof glass curtain wall should have fire resistance
When the fire occurs, the average temperature of the flame within ten minutes after the fire is about 700℃. Within 20 minutes after the fire, the flame temperature is generally about 800℃; Within 30 minutes after the fire, the average flame temperature is about 840℃; It can reach about 925℃ in an hour. According to the fire-proof time limit requirements of the building for the fire-proof curtain wall or partition, the selection of appropriate fire-proof materials is the basis for achieving the unity of function and economy. The skeleton material of the curtain wall is mostly aluminum profiles and steel profiles, but the melting point of aluminum is about 400℃, and the mechanical properties of steel under the action of high temperature in the fire, such as yield strength, elastic modulus, etc., will decrease with the increase of temperature, when it is about 550℃, the reduction is more obvious, generally in about 15 minutes will lose the bearing capacity. It can be seen that if there is no fire prevention treatment, the fire will be burned out within 15 minutes. Therefore, as a fireproof glass curtain wall skeleton materials need to be fireproof treatment. As the main material of fireproof glass curtain wall and partition, fireproof glass is naturally selected. At present, there are many types of fireproof glass, and the selection should consider the architectural decoration effect, strength, fire resistance and other aspects. The fire resistance of the connection part is the basis of the integrity of the entire system, and the embedded parts and connected parts at the connection should be added a fire protection layer. Class A fireproof glass curtain wall should use crystal silicon fireproof glass with high weather resistance (both indoor and outdoor can be used), Class C fireproof glass curtain wall should use high borosilicon fireproof glass with stable fire integrity.
Hengbao fireproof glass curtain wall meets the fire protection design of building curtain wall conforms to the relevant provisions of GB 50016-2014 "Code for Fire Protection of Building Design" and JGJ 102-2003 "Technical Code for Glass Curtain Wall Engineering". Strictly implement the GB/T 12513-2006 "Fire resistance test method for glass mounted components" or GB 16809-2008 "Fire window" standard for testing, and pass the type test of the national authority inspection center, and meet the requirements of fire prevention or fire insulation:
1) Frame: thick high temperature resistant high quality steel;
2) Glass: crystal silicon hard insulated fireproof glass or partial insulated fireproof glass:
3) Seals: (non-combustible, non-combustible) fire-resistant seals:
4) Adhesive for high-quality building curtain wall.
As the general agent of Heshan Hengbao Fireproof Glass Factory Co., LTD., Zhenwei Engineering provides Macao with a series of doors and Windows system with UM IDQ Fireproof certificate, with the vision of "creating a safe environment for the society", and can provide a professional attitude and spirit for fireproof products!
For more information on fire protection products, please call our hotline at 853 28424213 or our email address at mat@zenwaymo.com.
The article comes from: fireproof glass curtain wall https://www.hbglass.net