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Using the shopping street’s ichnography and elevations in this paper, comprehensive utilization of building fire protection design of learning content, design of building fire protection system and reasonable for the street. Obtained from a shopping center ichnography and elevation: the total area of shopping street for 8906.3 m2 and single area of 2776.9 m2, two floors, the floor height is 15.6m, length 168.6m and width 17.5m, The first floor has 23 shops and 3 entrance halls, is also provided with a power distribution room, the alarm valve room, fan room and air conditioning room. The second floor has 26 shops, shops and a layer of the same layout, three hall one layer position is shops replace in the two layer is also provided with a power distribution room, the alarm valve chamber, fan room and air conditioning room. The top has two cooling tower, a water treatment room, a refrigeration room, a power distribution room.
Fire protection design of buildings including plane: determining the shopping street fire resistance rating, refractory grade was two. Determination of fire spacing, with the three adjacent buildings of six layer high residential fire resistance rating with a magnitude of two, construction and fire interval surrounding buildings is six meters. Division of fire partition, design to the floor for a fireproof partition. The installation of fire facilities, building used to burning body and set the fire fighting and rescue window; design of fire lane, fire lanes with annular driveway, design along the shopping street buildings arranged around the fire lane, width of six meters circular fire lanes two and other lane connectivity, set turnaround area of 18.0m × 18.0m.
The design of indoor and outdoor fire hydrant system design including outdoor fire hydrant count the number of outdoor fire hydrant and set of three outdoor fire hydrants. The outdoor fire hydrant arranged by ground fire hydrant, design three outdoor fire hydrants one of DN100mm and two another DN65mm code. Indoor fire hydrant design, determine the indoor fire hydrant spacing of 22.1m and 8vertical tube root, 2 horizontal rows. The indoor fire hydrant system diagram show in Figure 5.1. each pipe section of the fire hydrant pipe network is the most unfavorable riser hydraulic calculation, see table 5.6; set fire water tank, fire water tank volume calculation, fire water storage for 12 m3.
Including the safe evacuation design: through a safe exit area of indoor and outdoor: set two exits and the width coefficient of evacuation safety exports is not less than 3.75m. The evacuation staircase set to open stairwell.
Smoke control system design includes: smoke partition setup, the first floor of a smoke control area of 331.2 m2, the second floor has two smoke zone with one area of 488 m2, another area of 331.2 m2. The maximum amount of exhaust system for 58560 m3/h. The mechanical smoke exhaust in centralized way prevention the natural smoke exhaust smoke and the exhaust fan and air duct to the corresponding design.
Sprinkler alarm system design includes: spray nozzle arrangement, probe selection and arrangement. The shopping street by the deluge system, with open sprinkler head, by the deluge valve control spray coverage, by a system of automatic fire alarm system fire monitoring and automatically start the deluge valve. Control system for large area protection area, suitable for the actual needs of shopping center of automatic sprinkler. Fire risk grade of the shopping place for dangerous grade II, because the function of building is large and medium-sized business places, there are large number of combustibles. May produce smoldering fire or fire not alert will cause significant loss of place, the temperature sensing detector. So choose the smoke detector.
Key words: Shopping street；The design of Smoke control system；Fire hydrant system design；safety evacuation；Sprinkler alarm design
目录
1 绪论 1
1.1 工程资料 1
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