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火灾自动报警系统设计采用集中报警系统，并设消防控制室。设计选用感烟火灾探测器，各层分为2个探测单元，探测器保护面积A=60m2，保护半径R=5.8m。探测器布置数量，一层26个，二层16个，三到二十七层35个，地下室75个。
毕业论文关键词： 高层建筑；综合办公楼；消防设计；消火栓系统；自动喷水灭火系统
Fire protection system design of Grade A office building in a Technology Park
Design Notes：The objective of this design is a Grade A office building in a Technology Park. Project is developed by Green Technology Island Properties Limited, it’s a set of commercial, office, LOFT office complex real estate projects. Among them, the 27-story Grade A office building has rooms with 70-120m² per-cell, it’s building height is 99.9m and construction area is 33395 m². The service life period of this building is 50 years.
This paper does research on contents as follow, (1) analysis of situation of high-rise building’s fire safety at home and abroad; (2) the significance of this paper; (3) general layout of fire control; (4) smoke control design; (5) Evacuation design ;(6) fire extinguisher; (7) fire water supply system design; (8) automatically spray fire distinguish system; (9)fire automatically alarm system.
This design mainly involves the standard" code for fire protection design of buildings"GB50016-2006, " fire protection design of tall buildings"GB50045-95, " for design of automatic fire alarm system"GB50116-98, " code for design of sprinkler systems" GB50084-2001, " code for Design Regulations on fire prevention in garage, repair shop, and parking lot"GB50067-97, " code for design of architectural specification extinguisher"GB50140-2005, " Office building design"JGJ67-2006.
In accordance with the standard" code for fire protection design of buildings", this building has been rated as the first class public building, and its fire-resistance rating as the first level. The fireproof distance between this building and other high-rise buildings should be 9m, while between the building and other residence and podium should be 13m. Set ring fire road around the building.
In accordance with structure and use of this building and national regulations and rules, the general layout of fire control of this building mainly designs the fire-proof part and smoke-proof part of functional pision inside each other floor.
The safe evacuation route is from room to hallway to antechamber to stairwell. Each fire district located two evacuation exits and walkway’s width is 2.2m, two security exit distances greater than 5m, the safe evacuation distance is 12.7m, which is compliance. Each tower set two stairwells, a fire elevator in design.
Design objects is serious risk hazard level, it is mainly made for fire emergency of A class, and few for E class. Fire extinguishers are equipped with ammonium phosphate powders (MF/ABC5) and hands holder. Fire minimum configuration level is 3A, and maximum protection distance of hands holder is 15 meters. According to the result of computing protected area square and fire protection levels, fire extinguishers set 10 point in the first floor, 5 point in the 3rd floor to the 27th floor, 17 point in the basement, 10 fire extinguishers in the first floor and 3rd floor to the 27th floor, 5 fire extinguishers in the second floor and 34 fire extinguishers in the basement.
Fire water supply system design includes the outdoor fire hydrant system and indoor fire hydrant system. Outdoor fire hydrant water consumption is 30L / s, set three outdoor low voltage ground fire hydrant. Indoor fire hydrant water consumption is 40L / s. The water-power calculation of full water spout is12m, fire hydrant protective radius is 28m, fire hydrant distance is 26.7m, setting up 5 risers in building. The total loss is 0.12932MPa, the elevation difference between most negative point hydrant and lowest level of fire pond is 1.0335MPa, working pressure of the fire fighting equipment at the most negative point is 0.20309MPa, so the fire pump lift is 150m and flow is 45.22L/s, choose XBD16.8/75-200×8 model of fire pump, with a preparation, set 4 fire pump adapter. Set a fire pond, the effective volume of it is 435m3. Set fire water tank, the effective volume of it is 28m3, no booster facilities.