10年品牌值得信賴
精誠團結、奮起拼搏、開拓進取

濟南彩鋼板

13969159292

0531-88686388

新聞中心

首頁>>新聞中心>>彩鋼板建筑的主要火災危險性有哪些?
新聞中心
聯系我們
濟南堅固彩鋼工程公司

聯系人:

電話:13969159292

地址:濟南市工業北路81號北鄰

彩鋼板建筑的主要火災危險性有哪些?

來源:http://www.ebassfish.com/ 日期:2021-05-25 發布人:jiangucaigang
一是建筑耐火性能差,容易坍塌。彩鋼板建筑大多使用鋼結構沉重,在火災時火場溫度可達800~1000℃,遠遠超過鋼結構失去靜態平衡穩定性的500℃的臨界溫度。在承載負荷情況下,裸露的鋼結構很快出現變形,產生局部破壞,造成建筑整體坍塌。普通彩鋼板房一般在發生火災后10min左右就會喪失承載能力而垮塌,不利于人員疏散和搶救物資。
First, the fire resistance of the building is poor and easy to collapse. Most color steel plate buildings use steel structure, which is heavy. In case of fire, the fire temperature can reach 800 ~ 1000 ℃, far exceeding the critical temperature of 500 ℃ when the steel structure loses its static equilibrium stability. In the case of bearing load, the exposed steel structure will soon appear deformation, resulting in local damage, resulting in the overall collapse of the building. The ordinary color steel plate house will lose its bearing capacity and collapse about 10 minutes after the fire, which is not conducive to personnel evacuation and rescue materials.
二是板芯材料易點燃,蔓延迅速。彩鋼板的板芯填充材料多數為聚氨酯、聚苯乙烯等易燃可燃材料,燃點低、阻燃性差,一旦遇到高溫火花、電線短路熔珠或明火作用會立刻燃燒,且材料的蜂窩狀結構會加大與空氣的接觸面,導致燃燒猛烈。此類建筑往往空間大,缺少防火分隔設施,在火災時蔓延途徑多,火勢發展迅猛,易形成大面積燃燒和立體燃燒。
Second, the core material is easy to ignite and spread rapidly. Most of the core filling materials of color steel plate are flammable materials such as polyurethane and polystyrene, which have low ignition point and poor flame retardancy. Once encountering high temperature spark, wire short circuit, molten bead or open fire, they will burn immediately, and the honeycomb structure of the material will increase the contact surface with the air, leading to fierce combustion. This kind of building is often large space, lack of fire separation facilities, when the fire spread in many ways, the rapid development of fire, easy to form a large area of combustion and three-dimensional combustion.
三是建筑內通道狹窄,影響疏散。很多使用單位為了追求使用面積,沒有留出符合規范要求的安 全通道和疏散空間,有些甚至占用安 全疏散通道搭建彩鋼房,一旦發生火災,人員疏散受阻,后果不堪設想。
Thirdly, the narrow passageway in the building affects the evacuation. In order to pursue the use area, many users do not set aside the safety passage and evacuation space in line with the requirements of the specification. Some even occupy the safety evacuation passage to build color steel rooms. In case of fire, the evacuation is blocked, and the consequences are unimaginable.
四是燃燒產物毒性大,逃生困難。彩鋼板板芯填充物采用的聚苯乙烯和聚氨酯為高分子聚合材料,燃燒會產生大量濃煙,含有大量一氧化碳和氰化氫等有毒氣體,具有很強的毒性和刺激性,容易造成火場逃生人員和消防撲救人員的傷亡事故。
Fourth, combustion products are highly toxic and difficult to escape. Polystyrene and polyurethane are used as polymer materials in the core filler of color steel plate, which will produce a lot of smoke when burning. It contains a lot of toxic gases such as carbon monoxide and hydrogen cyanide, which has strong toxicity and irritation, and is easy to cause casualties of fire escape personnel and fire fighting personnel.
五是火場不利因素多,撲救困難。彩鋼建筑火災在撲救過程中,水和滅火劑只能噴到彩鋼板外層板面上,不能直接作用于夾層里的燃燒物。
Fifthly, there are many disadvantageous factors and it is difficult to put out the fire. In the fire fighting process of color steel building, water and fire extinguishing agent can only be sprayed on the outer surface of color steel plate, and can not directly act on the combustibles in the interlayer.
此文關鍵詞: 濟南彩鋼板  

推薦閱讀/ Recommended reading

相信大家對彩鋼復合板都不會陌生,畢竟在生活中是比較常見的。雖然濟南彩鋼復合板引進不到20年時間,但由于其具有承力、保溫隔熱、裝飾、防

防火彩鋼板表面為什么出現壓斑? 2022-02-26
有哪些原因會導致C型鋼出現變形的現象? 2022-02-22
彩鋼瓦具有哪些優勢? 2022-02-17
復合板質量控制的措施及建議 2022-02-14
欧美激情视频-人妻av综合天堂一区-色天使色妺妺网站-无码a片