Shanghai Jian Sheng Construction Co. Ltd. firewall construction program: The company mainly construction: fiber reinforced silicate fireproof board, fiber-reinforced silicate board, fire resistance of 2-4 hours Firewood (firewall), explosion-proof plate (blast walls) , explosion relief panels, venting panels (explosion venting wall) and other fire series of projects, we will, as to provide customers with green products and services. Welcome new and old customers to inquire our products and technologies. The company provides free 2-4 hour firewall, free on-site service, free measuring site, free project budget. (The following is Shanghai Jian Sheng Construction Co. Ltd. published) Contact phone: 15021392989 Tel: 021-67831262 QQ: 3136386089 E-mail: 3136386089@qq.com Address: Shanghai Qingpu District, Zhao heavy highway No. 1628 1. The existing norms for fire separation provisions 1. shortcomings did not consider the role of the reliability of the fire separation, fire separation in the scene of action to withstand the impact of flashover smoke produced and played the role of "fire protection design of tall buildings" section 5.44 states: "In setting up a firewall correctly difficult places, can be used as a fire shutter fire separation when using include unexposed surface temperature criteria for determining the fire resistance of fire shutter, its fire resistance of not less than three hours; When using do not include unexposed surface temperature When liter for the fire resistance of the determination condition of fire shutter, its volume should be located on both sides of the curtain closed independent automatic sprinkler system protection, sprinkler systems duration of not less than three hours. " In the other part of the "fire protection design of tall buildings" and "architectural design code for fire protection" in the fire separation has a similar provision. Obviously specification when fire separation with other facilities instead of the prescribed role of the firewall, only consider the fire separation of the fire resistance requirements, while ignoring the role of reliability requirements and withstand the impact of flashover and play a role in the fire and smoke in the request, actually reduced the fire separation requirements. First, the firewall as a fire separation is an important measure of its reliability performance requirements. Firewall as fire separation facilities have high reliability, but the current specification can be used instead of the firewall shutter, water curtain, door, window in addition to the fixed fire window for its reliability is low, at least compared with the firewall is low. Needless to say, these fire separation facilities due to the complexity of their structure and the inevitable failure rate, even without considering the failure rate of the facility itself is managed by human error factor is used simply not be completely avoided. Secondly, the fire separation facilities in the scene you want to play the role of fire separation, not just heat radiation and convection effects need to bear, as well as the role of mechanical forces when flashover hot air shocks, otherwise it will not achieve the role of fire separation, while the vast majority of indoor fire flashover is the development of a necessary process. Again, in the scene of the fire separation is not only played the role of fire spreading prevention, as well as action to prevent the spread of smoke, but the fire is still an important role separated. The fire shutter, fire water curtain on fire smoke ability both in the ability, or in terms of reliability, much lower than the firewall. 2. The fire resistance of the load-bearing member of the provisions of the fire resistance of non-load-bearing firewall than low, shall not be considered when the fire resistance of the firewall load-bearing influence, ignoring the fire safety of the building structure, "architectural design code for fire protection," Article 2.0.1 provisions: one, two, three fire resistance rating of fire resistance of building a firewall for four hours; bearing wall fire resistance rating of the fire resistance level for three hours building, support for multi-column fire resistance of 3 hours, supporting single-column refractory limit is 2.5 hours; the fire resistance of load-bearing walls secondary fire resistance rating of the building is 2.5 hours, and support for multi-column fire resistance of 2.5 hours, supporting single-column limit of 2 hours fire resistance, "fire protection design of tall buildings." There are also similar provisions. First, there is the fire resistance requirements for firewall than the load-bearing walls, and even higher than the load-bearing multi-column, is clearly unreasonable. Ignoring the needs of the building on fire separation action is premised on the structural safety of the building, imagine if the building collapsed, fire separation it still make sense? Secondly, do not consider the impact of the provisions of the fire resistance of the firewall load factors, is clearly not in line with the actual situation, but also to regulate contradictory provisions in this regard. Because from "architectural design code for fire protection" and "fire protection design of tall buildings," the appendix can be seen, the same due to the load-bearing building components, and make the fire resistance is reduced, and on the load-bearing member provides high than non-load-bearing member fire resistance. Second, to improve fire separation according to the level specified in Recommendation 1. The fire resistance of fire separation and reliability of the fire separation into different classes and grades, and according to different categories and levels of fire separation provisions of the size of the fire district area. First of all, if human factors are separated by fire equipment operation, management and other affected into one or two categories, and then in each category were graded according to the current classification of fire resistance of fire separation methods. That is the human factors from equipment operation and management of the impact of the fire separation is defined as a class, the human factors affected equipment operation and management of the impact of the fire separation is defined as the second category, then each category divided by the level of fire resistance rating of A , B, C categories. Secondly, in the prescribed fire district area, increasing the reliability of the fire district and fire resistance of high fire separation between the area and reduce the fire district area of ??low reliability and fire resistance of fire separation between. Such adjustments, one can improve the reliability of fire separation; the second is to give full play to the role of fire separation; Third, it could make the architectural design is more flexible; four is to improve economic performance of most buildings; five fire separation facilities can promote technology progress, improving its reliability and fire endurance. 2. The members in the fire could withstand the impact force generated by flashover integrity and stability of the member, as the evaluation of fire resistance of smoke and fire performance of building elements important condition. Reform of the fire resistance test facility fire separation method, the fire separation in the fire may be subject to mechanical impact force generated by flashover, the need to have the mechanical strength of the included trials range specified fire separation facility should have the mechanical strength requirements. Prescribed fire separation of smoke performance requirements. 3. emphasis on the structural safety of the building in case of fire, taking effect on the fire resistance of the load. Adjust the provisions of the fire resistance of building elements to improve the load-bearing components, especially the fire resistance of load-bearing member of the multi-layered, so that the fire resistance of building components and their safety and fire safety in the building structure to adapt to the role, the refractory building elements performance reserve is to ensure safe and not wasted. Reduce the fire resistance of non-load-bearing firewall requirements, providing more space to the development of building materials. Firewood fire protection systems provided by the Company, in line with the national fire code requirements, including firewalls, steel protection, application has reached the international advanced level refractory duct. Features: Fire: Good professional fire performance, each constructed of passive fire protection systems, Protech Firewood by national standards GB / T9978 British Standard BS476 / ISO834 international standard fire test environmentally friendly: 100% free of asbestos, environmental compliance Economy: light weight, high strength, reduced cost structure and strong architectural surface decoration: painting, wallpaper, wall tiles Jieke waterproof: Tuobei Mo to rock crystal structure oriented, excellent stability, by humidity changes affect small energy-saving insulation: Insulation Good performance, reduce energy consumption and long life: the inorganic substrate cement, pink quartz, easy to decorate, without fear of harsh environment, life with masonry mildew, moth, anti-aging application areas: ①, 1 ~ firewall; 4 hours ②, 3 小时 self-supporting fire-resistant duct cladding; ③, 3 小时 metal duct fire cladding; ④, 2 小时 steel beam fire cladding; ⑤, 3 小时 fireproof steel column cladding; ⑥, fireproof ceiling, wire (cable) cladding tubes and other fire safety engineering product specification: 2440 × 1220 × 8-25mm technical indicators: three types of projects keep their music board density (g / cm 3) 0.95 ~ 1.20 moisture content (%) frost resistance - 25 ℃ under freezing 1.5h, financial 0.5h, 25 freeze-thaw cycles without cracking, free from layer (above the Shanghai Jian Sheng Construction Co. Ltd. published) declined counterparts theft, you are welcome to inquire, I promise: quality guaranteed! Excellent and inexpensive price! Honesty!