Factory iron stairs are often called emergency stairs used to move out of the workplace when there is a problem inside the factory. Factory iron stairs are usually used to move with the stairs when the elevator equipment is broken. The exiting factory iron stairs are usually designed outdoors, convenient for moving and circulating air when a fire occurs. For high-rise buildings, the factory wrought iron bridge system is designed in the house and close to the elevator for convenience in movement and easy identification in times of emergency.
Considered to be important in every factory building, so there are standards and regulations for construction. With the main purpose of ensuring the safety of workers in the event of an incident.
Standard size of factory iron stairs
The distance from the emergency stairs to the farthest room, excluding toilets and bathrooms, must comply with regulations.
+ Distance is 50m for rooms between February and February with two exits, 25m for rooms with only one elevator, or auxiliary exits.
+ Distance 40m between two ladders or exits, 25m for rooms with only one ladder or one way out to public houses.
+ Width of emergency exits and corridors is specified: 0.8m for the door, 1m for the entrance of the door; 1.4m for corridor: 1.05m for stairs.
+ The height of doors and walkways is not lower than 2m; for basements, the vacuum floor must be lower than 1.9m; roof basement not lower than 1.5m
+ Fire ladder must meet: Width is at least 0.7m; The largest slope relative to the horizontal is not greater than 500, the ladder has a handrail of 0.8m high
+ Number of stairs: Greater than 3 and smaller than 18 steps, do not use a spiral staircase with fan-shaped stairs to make an escape ladder, the largest angle of inclination of the ladder is 1:1.75.
Must ensure 2 escape routes
High-rise offices must have 2 escape routes to ensure the work of people in the factory. The standard for the exiting iron stairs must be at one fee, the other fee is the design of the balcony.
Go from the rooms on the first floor directly out.
The load-bearing structure and cover must have a fire resistance limit of not less than 60 minutes. Because when there is a problem, the large number of people moving by the emergency stairs is quite large, so there must be a structure that can bear a rather large load.
The chat compartment must automatically close and be made of non-HCays materials, with fire resistance levels greater than 45 minutes. Since this door has the role of optimal fire suppression when traveling on the emergency ladder, the fireproof material has a very important position and must definitely be selected according to the design of the exit stairs.
There must be a projection system on the stairs when there is a problem
The ladder must be well ventilated, so the face should not be placed on the floors and there should be an exit to the roof
Step 1: Based on construction drawings and construction survey
Step 2: Through the table peeled off the estimated cost of the quotation to give a preliminary construction plan
Step 3: Design detailed drawings finalizing the official construction plan drawings (item contract)
Step 4: Manufacturing stairs at the factory
Step 5: Transport to the construction site and complete the acceptance test.
- In the process of building iron stairs, we have a full range of machines to support quality and fast construction. In the construction design of the way to the exit ladder or iron stairs, there must be fireproof exit doors.
- The main material used for the exit ladder is stainless iron, and must be checked and maintained periodically
- Depending on the type of office building, the exit has different width and height
- Stairs must have at least one side with handrails. The height of the handrails of the stairs from the tip of the stairs must not be less than 0.9m .
The cost of construction of outdoor iron stairs depends on many different factors. Therefore, the price list for the construction of the factory iron stairs is for reference only in a basic case. Construction price of factory emergency stairs is affected by the price of raw materials (iron, steel ..), labor cost at the time of construction, large or small scale of demand.
+ Iron stairs include details of stainless iron handrails, iron columns according to the pattern, 16 phis, bends multiplied by 1.5, installation of 2-layer finishing paint. The unit price for this item ranges from 1,000,000 to 1,400,000/md for a separate calculation
+ Stainless steel stairs: wooden handrails, imported stainless steel columns and stainless steel braces on both sides, transparent 12.7, bends multiplied by 1.5, this type of stairs is popular on the market today because of its simple characteristics. Modern, yet simple. The unit price of this item is 1,100,000 – 1,400,000 VND/md The main pillar is calculated separately
+ Glass stairs include: wooden handrail, 10mm tempered glass, imported stainless steel column, elbow x system 1.5. Unit price 1,300,000 - 1,500,000 VND/md Main pillar separately
The price of the factory iron stairs mentioned above does not include VAT. The quotation is for reference only, but through it, the Customer can estimate the construction cost for this item for the factory.
Note: Before designing and constructing stairs, it is necessary to prepare a number of factors.
+ Data on construction site
+ Data about the whole office building, factory, people and structural data
+ Construction plan on safety and construction progress
+ Presenting project design drawings with detailed design of stairs close to the factory
+ Describe relevant drawings and stairs drawings in accordance with standards and regulations.
+ Thorough analysis of construction design drawings.
+ Design emergency exit ladder to ensure space structure, load-bearing structure and meet standards as prescribed.
