1、外文资料及翻译 Fire in high-rise building design Fire in high-rise building design in recent years, the citys commercial and residential design process, encountered a new problem is the fire department for public security for a class of high-rise residential elevators and the Office of Public hallway with
2、Automatic sprinkler fire extinguishing system. Past, Design for the present Tall Buildings design of fire safety regulations (GB 50045-1995) (hereinafter high regulation), automatic sprinkler system installed .6.2 scope of section 7 of the understanding of the domestic excluded. Fire in high-rise bu
3、ilding design of the conventional practice of using the whole floor, generally located fire hydrant system, Skirt-building basement and the installation of automatic sprinkler systems. Therefore, the lift pump spray option is lower, the output is smaller. In practical projects have encountered this
4、kind of example : a 28-storey buildings in the residential and commercial fire inspection, public security and fire prevention departments requiring layers of elevators and corridors to increase sprinkler system. That the owners have had to make fire sprinkler pump, the staircase installation of fir
5、e sprinkler pipes and sprinkler heads. The results will not only increase the construction costs, also affected the Office of the lift cosmetic and progress of the project. Under the high regulation, Section 2 of Chapter VII of the fire water, we can see a kind of high-rise building fire hydrant wat
6、er for the indoor 20 L / s, and a category of high-rise commercial indoor water hydrant to 40 L / s, the difference was doubled. To a 30-storey residential buildings and a composite of the same height (24m following skirt building for commercial purposes, for its residential) as an example, to analy
7、ze the fire danger. For composite skirt building, as shopping malls, restaurants, etc., because of their luxurious decoration, with central air-conditioning system Fuel more, the risk of fire is greater. Case of fire, the fire water needs are greater. But skirt building height of the building 24m, a
8、t the scope of fire engines to put out the fire within, I can get external support. As long as the initial fires effectively controlled, it is easy to fight the fires. Therefore, the increased part of the skirt building fire water skirt building and the installation of automatic sprinkler systems ap
9、pear to be necessary. On the residential portion of the composite, I believe with a purely residential buildings can be treated the same. But the fire design, the composite hydrant system is based on 40 L / s design. Meanwhile, ordinary residential buildings are based on 20 L / s design, it is clear
10、 the former fire in residential water layer is a surplus. Then, the fire department asked the Office of Residential Elevator layer and the public sidewalk installed sprinkler system, they can use the surplus in this part of the fire contained, In other words layer residential sprinkler system can us
11、e the fire hydrant system pumps, fire and the total water consumption unchanged. Most residential tower floor of the typical residential floor elevator and the Office of the general public sidewalk installation of 5 8 nozzle it will satisfy requirements , equal to a water gun fire of consumption, co
12、upled with 20 L / s hydrant water usage. Residential water layer fire not more than 40 L / s. But residential layer spray Standpipe to set up independently, based in the First Floor Wet alarm valve, hydraulic alarms based on duty nearby. If the nozzle for each five dollars, the entire building housi
13、ng the nozzle layer is not more than 150, the system is obviously very small. In order to reduce construction costs, I believe it may be possible to omit the typical gauges and flow control valves, In the bottom of the standpipe installed a total control valve and flow indicator. Once the fire floor
14、, blasting sprinkler head, wet alarm valve hydraulic alarm after alarm signal will be issued. but each floor smoke detector will send out alarm signals to direct the fire site. If the nozzle mistaken burglary, the alarm will hydraulic action, instructions to staff on duty to inspect mistaken burglar
15、ylocations. For purely residential floor of a high-rise building category, residential elevators and the Office of sidewalk are required to spray for protection, I believe sprinkler system and fire hydrant system is also suitable for fire pump, but adjustments to the fire pump flow, Additional that is the typical number of nozzles can flow. Taking into account the role of sprinkler system time with the fire hydrant
