3.
5.
They are reluctant to invest in the purchase of necessary fire-fighting equipment.
In addition, the fire fighting equipment in the temporary room is insufficient, and there are no temporary emergency fire-fighting facilities.
The use of open fire and electric welding operations in violation of regulations such as electric stove, baking and heating on the construction site are numerous, which is easy to produce sparks and cause fire.
Management is disordered.
The person in charge of some construction units has weak fire safety awareness and poor fire safety quality, so they do not perform their own fire safety responsibilities.
4.
Fire Prevention Measures for Flammable and Combustible Buildings 01 General Provisions 1.
2.
Once a fire occurs, it is bound to cause fierce combustion and rapid spread.
The fire source management and safety measures are not in place.
Open fire operation was carried out in areas such as flammable and combustible materials storage sites without authorization, which increased the probability of fire.
Temporary buildings have low fire resistance rating.
5.
In addition, open fire operation areas were not divided, and corresponding protective measures were not taken.
2.
When the metal sandwich panel is used, the combustion performance grade of the core material is Grade A; (2) The number of building floors shall not exceed 3, and the building area of each floor shall not exceed 300m2; (3) When the number of floors is 3 or the building area of each floor is more than 200m2, at least 2 evacuation staircases shall be set, and the maximum distance from the room evacuation door to the evacuation staircases shall not be more than 25m; (4) When rooms are arranged on one side, the clear width of evacuation walkway shall not be less than 1.0m; When rooms are arranged on both sides, the clear width of evacuation walkway shall not be less than 1.5m; (5) The clear width of evacuation stairs shall not be less than that of evacuation walkways; (6) The building area of dormitory rooms is not more than 30m2, and that of other rooms is not more than 100m2; (7) The distance from any point in the room to the nearest evacuation door shall not be more than 15m, the net width of the door shall not be less than 0.8m, and when the building area of the room exceeds 50m2, the net width of the door shall not be less than 1.2m; (8) The partition wall is separated from the floor base to the bottom of the roof base..
Although some construction sites have municipal tap water pipes for water supply, they are often temporary pipe networks, and the water volume is insufficient, which can not meet the needs of fire protection.
There is a lack of fire water source and fire fighting facilities.
02 Fire prevention for temporary buildings 1.
4.
The fire protection design of temporary buildings shall be determined according to their use nature and fire risk.
III.
3.
Most of the construction directors think that fire control management is the matter of the construction unit and has nothing to do with themselves.
It is difficult to control the initial fire and the fire is very easy to spread.
Most of the flammable and combustible materials on the construction site still use wooden and other flammable scaffolding and combustible materials as safety protection materials.
Due to the progress of the project and seasonal changes, it is difficult to ensure water supply.
Generally, the construction site under construction uses temporary electricity, but the electricity consumption is large, the electrical circuit is not laid in a standard way, and the phenomenon of illegal installation of electrical equipment and private connection of electrical circuit is relatively serious, and even the power distribution device is directly installed on the combustible wooden components.
Take reliable fire prevention technical measures such as fire separation and safe evacuation for temporary buildings and projects under construction.
The layout is unreasonable and the temporary buildings are built in violation of regulations, which are staggered and affect the safety layout.
Inflammables and dangerous goods such as wood chips, shavings, paint, blowtorch, etc.
Temporary buildings on the construction site have low fire resistance rating because they are mostly made of movable plates, color steel, wood, linoleum, etc., and most of them are Grade III and Grade IV buildings.
In particular, there are a large number of flammable decoration materials stacked on the decoration site, flammable insulation materials are used for some external walls of buildings, and flammable and explosive dangerous materials such as paint are stored.
Some projects under construction randomly stack building materials and construction waste, increasing the fire load and blocking the fire lane; Scaffolds and safety protection materials erected outside the built buildings were not removed in time, which occupied the fire separation between buildings.
Fire prevention measures for dormitories and office buildings (1) The combustion performance of building components is Grade A.
2.
3.
seriously hinder the passage of fire engines, which may delay the fire fighting time.
The fire protection design of the project under construction shall be determined according to the construction nature, building height, building scale and structural characteristics.
02 Construction in progress 1.
often exist in the temporary room.
The use of fire and electricity is disorderly, and the phenomenon of overloading, pulling and pulling wires and using electric heating appliances is widespread.
Fire risk analysis of flammable and combustible buildings 01 Temporary buildings 1.
In general, there is a lack of fire water source in the temporary buildings on the construction site of the construction project.
The construction site usually has only temporary fire water source.
Flammable and combustible buildings include temporary buildings and projects under construction in accordance with Technical Code for Fire Safety on Construction Site of Construction Projects (GB50720-2011).
Second, the area of temporary houses is large and there are many people.
At the same time, the constructors are highly mobile, with low education level, have not received strict management and fire safety knowledge training, have not mastered basic fire knowledge, and have poor self prevention and self rescue ability.
First, the fire separation is occupied, which blocks the passage of fire engines, and the warehouse, dormitory, office, kitchen and canteen are adjacent to each other.
Oxygen and acetylene are frequently used by the construction unit, and some electric welding and gas welding workers work without certificates.
I.
The staggered and adjacent temporary buildings and fences or building materials, construction waste, etc.
The temporary buildings refer to the non permanent buildings built on the construction site to serve the construction, including office rooms, dormitories, kitchens, canteens, generator rooms, power transformation and distribution rooms, warehouses and other important places.
The evacuation exits are short and blocked.
The nature of the production and operation of personnel entering and leaving the highly mobile construction site makes the construction workers often in a decentralized and mobile state, and the construction processes cross each other, which is inconvenient for management.
Protection measures are lacking, and there are combustibles that do not clean up the site or construction while using.
The fire separation of the projects under construction is not in place.
II.
Fire safety management is not in place.
The indoor temporary wiring is complex, which is easy to cause electric leakage, short circuit, unstable contact point and spark.
