Monday, December 20, 2010
【 Weak current college 】 more property building fire situation and fire suppression solutions---Power By 【 China power house network 】
As a socialist market economy, and modernization of the rapid development of cities and towns of tall, tall building more and more. Development of high-rise building is the conservation of urban land-use one of the effective measures, but the risk of fire in high-rise buildings, but also in the event of fire, often resulting in injury and death group group of heavy economic losses of serious consequences. Highrise is moving in a modern, multifunctional, however some high-rise buildings have tended to be more property right of building. I discovered through investigation, part of the much visited property of high-rise buildings for fire safety management is extremely confusing. High-rise building fire management have a direct impact to the high-rise building of fire prevention and fire suppression, confusion of fire management for high-rise building of fire suppression brought great difficulties.
First, the number of property the fire risk of high-rise buildings
First, fire management, to control the fire. High-rise building fire suppression of basic requirements is based on self-help, stereo, strengthen first, adhere to the "fixed fire-fighting facilities-based, fixed fire-fighting facilities and mobile fire equipment combine" principle, evacuating personnel actively, effectively control the fire, the eradication of fire. Part of the high-rise building internal fire control centre on electricity or water ran out of high-rise buildings will face alarm and fire extinguishing facilities paralysis. Building fire facilities, no early warning, early-stage fire-fighting role, this will inevitably lead to the rapid spread of fire, result in serious casualties and property damage. Fire management confusion could lead to paralysis of the fixed fire extinguishing facilities so that fire prevention and fire suppression work of great difficulty, and after a fire caused economic losses and injuries is immeasurable, often to social stability, economic development has brought tremendous negative impact. Initial fire control and rescue rely on indoor automatic fire fighting facilities, the paralysis of the fixed fire extinguishing facilities directly affect fire suppression work.
Second, building complex, fire and spread of channels increasing, personnel are crowded and difficult evacuation. High-rise building site personnel density is very high, in the event of fire, heat, smoke filled with interior visibility decreases, causing panic prone, increasing the difficulty of the evacuation, and the combustion products easily causing suffocation, poisoning deaths. Fires staff tend to panic, overcrowding, easily hurt, even trample officers jumped to his accident. Many property owners of the building has a property right, and the more people you can transfer the property rights of usufruct, which meant the building must exist to use functionality, business scope broad, unified management difficult. Because owners protect their use rights in the floor to wall block, the original sides each have an evacuation staircases can use, many only one side of a ladder. These illegal construction of rebuilding after the fire, evacuation can cause disastrous consequences.
The third is the fire facility vulnerable to fire while the play is not the proper function. High-rise building fire from spreading through radiation, convection and heat transfer from vertical and horizontal transmission of heat and combustion. Large, multiple-floor of the building are often due to the construction Interior ventilation, stairs, well, exterior Windows and ceiling materials or goods, facilities and materials increase, will allow the fire to spread faster. In fire, building fire facilities vulnerable buildings collapse, fire power and signal line break, high-temperature deformation and losing design features, especially large and property Division building fire system too large and complex, its local runaway is likely to cause confusion or the entire system. During emergencies, such as lack of effective training, personnel full evacuation out of time to greatly exceed the fire spread to control time.
Second, many property characteristics of fire for high-rise buildings
First, the factors of the fire. More property high-rise building itself a building area of large, complex functions, use the unit number, concentration, interior decoration, flammable materials, fire hazards.
Second, the fire load, fire probability increased. Many property owners of the building owns property, because many owners or proprietors own consciousness and profit objectives, significant use of electrical equipment, facade decoration construction and illegal use of fire power, makes the building the probability of fire than normal construction.
The third is the spread. More property high-rise building professional shaft, fire, these shafts as tall chimney, constitute the main fire spread rapidly. Test proved that the flue gas vertical diffusion rate for 3 ~ 4m/s, high-rise buildings in 100m 25 ~ 35m/s, vertical flue gas is going back into the channel from the top at the same time, the fire will spread widening.
4. evacuation difficult. Multiple layers of high-rise building ownership, concentration, vertical evacuation distance, fire prone to heavy collisions, casualties. Many people in the building due to the use of property without changing the use of nature, with the result that building evacuation means fewer, coupled with the fires of flue gas, the fire spread rapidly, vertical to the evacuation difficult. According to statistics, 50-storey building, staff all stair evacuation to the ground when you need 2 11 points. Therefore, the fire prone to some people burned to death, death or even risky jump from a smoke break.
Five are fighting hard. High-rise building fire fighting facilities due to fire restrictions, to the fire has caused great difficulty. Part of the high-rise building is equipped with a podium or building a large area at the bottom of the lawn, there are some tall buildings due to fire when the construction of the narrow channel, the turning radius is small, the fire truck could not get in, they gave us fire operations lifting vehicle created a serious impact on the ability to climb. As domestic fire ascent vehicle limited to 24m, Shenzhen to 50m, more than the highly inaccessible from outside.
Third, many property of high-rise building fire fighting measures
One is to insist on the "save the first" philosophy, correct handling of rescue and other fire-fighting and rescue operations. The second is to strengthen the first deployed forces. According to the fireEnvironment and need to save the amount of tasks, once to the desired main fighting force deployed to the scene, shorten time to seize the initiative of fire fighting. The third is doing well fire detection. Through the fire detection and fire, quickly identify floor fire site, spread the direction, the location of the trapped people. Fourth, the evacuation was trapped. Fighting such a fire, the first effective organizations trapped people help themselves, when someone is affected by the fire threat to self out of danger, the organization capable forces to take the appropriate measures to ensure that the cover of ambulance and rescue personnel safety. The fifth is to determine the starting point of attack. Attack starting point layer selection in the burning layer down a level or the second floor. VI is in attack, attack, both inside and outside the clip, to intercept the fire attack from up and down. In building internal fixed fire extinguishing facilities good, you should first consider the use of building internal fixation attack fire facilities, and to a lesser extent, then consider using mobile fire fighting forces.
4. for the characteristics of property building fire suggestions
One is to increase awareness and checks, urge relevant units do fire facilities construction, and ongoing maintenance. Second, it is necessary to strengthen the squadron on top six are familiar with the area, especially the more familiar of the six units of property rights. Three is to strengthen the awareness of energy medicine anti, in large Squadron formation understanding between should find timely notice to the other party, in order to better carry out fire suppression work.
Labels:
[:]
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment