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Department store fire spread quickly, the fire development. Personnel density is big, the evacuation was difficult; Building complex internal structure, the characteristics of fire fighting and rescue is difficult. If improper fire-fighting design, there will be a lot of fire hazards.
The engineering design of the fire by national building fire design specification and related industry standards as the basis, combining with the actual engineering to carry out related work. Through scientific and reasonable design, to improve the level of fire safety of buildings, to ensure the safety of personnel in the building of purpose. The determination of the specific design content includes: The determination of the specific design content includes: architectural fireproof rank, construction general layout of reasonable arrangement, personnel safety evacuation design, fire partition design, indoor decoration design of fire safety, fire hydrant water supply system design, the design of building fire extinguisher configuration, the design of the automatic sprinkler system, automatic fire alarm system design, and construction technology of exhaust system.
The specific design of the program is as follows:
[1] The engineering and construction grade level, set to a fire resistance rating.
[2]The buildings with the surrounding maintained appropriate fire separation, meet specification requirements. Set up a ring around the building fire lane, in the middle position Settings through the building fire lane, north of circular fire lane width is 4 meters. To the north in the middle of the field is set to fire back yard. At the same time set to the north of department stores to fire up.
[3] In this project, could be pided into eight underground fire partition, the ground layer, layer and three layer pides the three fire partition, the ground four, five and six layers pided four fire partition, the ground seven layers pided six fire zone.
[4] This project pided three safety evacuation partition. Evacuation width, the number of safety evacuation distance and exit in conformity with the specification requirements. The number of stairs and fire elevator design also meet the requirements of safety evacuation.
[5] This project rest area, department stores, processing area, each part of the kitchen, multi-function hall and other decorate material to combustion performance level is in line with the request of "code for fire protection design of building interior decoration.
[6] Place of fire extinguisher configuration of this project risk level is identified as class A fires in grave danger level, in every fire extinguisher set point matching 3-4 MF/ABC5 of 5 kg portable fire extinguishers.
[7] This project fire water for municipal water supply pipe network for water and fire pool. Outdoor fire hydrant system adopts circular design, arrangement of outdoor fire hydrant in the pipe network, set up six hydrant on the ground, the fire hydrant water of 60 l/s. Indoor fire hydrant system of this project is a temporary high fire pump and cistern of indoor fire hydrant water supply system, the indoor fire hydrant water of 50 l/s, fire pool effective volume of 994 cubic meters.
[8] This project set the place of fire danger level for risk level (level I). This engineering design of automatic sprinkler system of hydraulic intensity is 6 m Lmin - 1-2, covers an area of 160 square meters, the amount of calculation in the area of nozzle for 13. The most unfavorable point nozzle working pressure is 0.10 MPa, a single standard sprinkler maximum protection area is 12.5 square meters, the design on the surface of the role action nozzle for long side contains four, nozzle rectangular arrangement between the side length of 4 meters long, short arrangement of 3 meters length.
[9] This project within the atrium, aisle, the smoke prevention stair well and its former room and fire stair and share the place such as room before setting the mechanical smoke extraction mode, in a region with outer wall or an outer wall front room set up natural smoke extraction mode.