Fire prevention and safety requirements in the con

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Fire prevention and safety requirements in building construction

in recent years, fire accidents on the construction site have occurred frequently, and fire prevention on the construction site has attracted more and more attention. During project construction, it is generally believed that as long as some fire-fighting equipment is equipped on the construction site, the fire-fighting requirements can be met, and the understanding of specific fire-fighting measures is still vague, and the professional quality of relevant management personnel is low, Inadequate fire-fighting measures are also a major cause of fire accidents on the construction site. This paper summarizes some relevant preventive measures for fire safety in project construction in combination with relevant specifications, procedures and years of construction experience

I. common flammable hazard sources on the construction site

common flammable hazard sources on the construction site include inflammables and explosives and flammable factors that are easy to occur during construction

1. Common inflammables and explosives on the construction site

common inflammables and explosives on the construction site include: lime, sodium nitrite (early strength agent and antifreeze commonly used in concrete), anti-corrosion materials (epoxy resin, phenolic resin, ethylenediamine, etc.), paint and paint diluent, oxygen and acetylene gas, liquefied gas, etc

2. Inflammable factors prone to occur during construction

⑴. Fire accidents easily caused in temporary power use: fire caused by line aging,

fire caused by overload, fire caused by line short circuit, fire caused by lightning stroke and suspension of corresponding weight and spark

⑵ welding service can be said to be the basic configuration of operation arc. We are vigorously developing flame-retardant technology for electrical utilization occasions. Fire accidents caused by improper protection of open fire operation

2. Fire prevention and fire fighting equipment commonly used on the construction site

fire prevention and fire fighting equipment commonly used on the construction site include: pool, fire bucket, fire shovel Fire axes and fire extinguishers (foam extinguishing agent, carbon dioxide extinguishing agent, chemical dry powder extinguishing agent), construction water, yellow sand, etc

it cannot resist oil and corrosion. III. requirements for the allocation of fire-fighting equipment at the construction site

1. The distance between the fire pool and the building is generally not less than 10m, and a fire lane is reserved around the water; In winter or cold areas, the fire pool should have good anti freezing measures

2. General temporary facility areas, power distribution rooms, hot work places, canteens, dormitories and other key fire prevention parts every 100m2. Large temporary facilities with a total area of more than 1200m2 should be equipped with equipment and facilities such as fire buckets, ponding pools, yellow sand pools, etc. for fire protection, and no objects should be piled around the above facilities

3. The temporary carpentry room, paint room, machine room, etc. should be equipped with a suitable type of fire extinguisher every 25m2; Oil depots and dangerous goods warehouses shall be equipped with sufficient number and types of fire extinguishers

4. According to the characteristics of the fire-extinguishing objects, acid-base, foam, clean water, carbon dioxide and other fire extinguishers should be arranged in groups, with no less than 4 in each group, and the distance between each group of fire extinguishers should not be greater than 30m

5. For projects with a height of more than 24m and more than 10 floors, important projects and projects with a large construction area (beyond the protection range of temporary fire hydrants on the construction site) should be provided with temporary fire water supply (which can be shared with construction water)

6, the construction of high-rise buildings above 30m should be equipped with special pressurized water pumps and fire water source pipelines. The diameter of the riser of the pipeline should not be less than 100mm. Each floor should be equipped with water outlet and a certain number of fire water pipes; A reservoir (less than 20m3) is set on the ground floor of the building; In addition, each floor is equipped with two fire extinguishers per 100m2 and communication alarm devices to facilitate timely reporting of dangerous situations

7. The temporary fire hydrants in the project should be set in obvious and easy-to-use places on each floor, and ensure that the spray water column of the fire hydrants reaches any part of the project. The outlet direction of the fire hydrant should form a 90 degree angle with the wall and be 1.2m away from the ground. The diameter of the fire hydrant shall not be less than 65mm, the length of each section of the water hose shall not exceed 20m, and the diameter of the water gun nozzle shall not be less than 19mm. When the fire pump is set, a button to start the fire pump should also be set at each fire hydrant

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