Advantages and disadvantages of light steel keel c

2022-07-22
  • Detail

With the development of China's modernization construction, light steel keel has been widely used in hotels, terminal buildings, passenger stations, stations, theatres, shopping malls, factories, office buildings, reconstruction of old buildings, indoor decoration settings, ceilings and other places in recent years. What are the advantages and disadvantages of light steel keel? How many kinds of light steel keels are there? Xiaobian will tell you in detail now

with the development of China's modernization construction, light steel keel has been widely used in hotels, terminal buildings, passenger stations, stations, theatres, shopping malls, factories, office buildings, old building reconstruction, indoor decoration settings, ceilings and other places in recent years. What are the advantages and disadvantages of light steel keel? How many kinds of light steel keels are there? Xiaobian will tell you in detail now

what is light steel keel

light steel keel is a new type of building material. With the development of China's modernization construction, light steel keel is widely used in hotels, terminal buildings, transportation stations, stations, amusement parks, shopping malls, factories, office buildings, old building reconstruction, indoor decoration settings, ceilings and other places. The light steel (baked paint) keel ceiling has the advantages of light weight, high strength, adaptability to waterproof, shockproof, dust-proof, sound insulation, sound absorption, constant temperature and other effects. At the same time, it also has the advantages of short construction period, simple construction and so on

light steel keel is a metal skeleton for construction, which is made of high-quality continuous hot-dip galvanized steel strip and rolled by cold bending process. It is used for modeling and decoration of non load-bearing walls and building roofs decorated with light boards such as paper gypsum board and decorative gypsum board. It is suitable for modeling and decoration of roofs of various buildings, basic materials of internal and external walls of buildings and scaffolding ceiling

classification of light steel keel

light steel keel has ceiling keel and partition keel according to purpose, and has V-shaped, C-shaped, T-shaped, L-shaped and U-shaped keels according to section form

the marking sequence of light steel keel is: product name, code, width and height of section shape, steel plate thickness and standard number. If the section shape is “ C” The ceiling keel with a width of 50mm, a height of 15mm and a steel plate thickness of 1.5mm is marked as: light steel keel for building

appearance quality the light steel keel should have a flat shape, clear edges and corners, and the notch should not have burrs and deformation that affect the use. The galvanized coating shall be free of defects such as peeling, bumping and falling off. For corrosion, damage, black spots, pitting and other defects, when tested according to the specified method, it shall comply with the provisions of table 2-81. During the appearance quality inspection, the visual inspection shall be carried out under the bright light at the place 0.5m away from the product. The surface of the light steel keel should be galvanized and rustproof, and its double-sided galvanized amount: the superior product should not be less than 120g/m * m

the main specifications of the partition keel are Q50, Q75 and Q100

the main specifications of ceiling keel are D38, D45, D50 and D60

advantages and disadvantages of light steel keel

I. advantages:

1. Its own weight is light. Light steel keel is a kind of light material. The self weight of the ceiling made of this material is only 3 ~ 4kg/m2. If the ceiling is composed of 9mm thick gypsum board, it is about 11kg/m2, which is 1/4 of the weight of the plastered ceiling. The self weight of the partition is 5kg/m2, and the partition wall composed of 12rnm thick gypsum board installed on both sides weighs about 25 ~ 27kg/m2, which is only equivalent to 1/10 of the mass of half brick wall

2. Excellent fire resistance. The fire resistance limit of the partition composed of light steel keel and 2 ~ 4 layers of gypsum board can reach 1.0 ~ 1.6h. Therefore, the light steel keel has excellent fire resistance

3. High construction efficiency. As the light steel keel is a kind of light material, the assembly construction method can be adopted. Therefore, its construction efficiency is high, and the general construction technology level can complete the partition of 3 ~ 4m2 per working day

4. The structure is safe and reliable. Because the light steel keel has the excellent characteristics of high strength and stiffness, the structure made of it is very safe and reliable. For example, when the partition keel with a width of 50 ~ 150mm is used to make a partition with a height of 3.25 ~ 6.oom, under the uniformly distributed load of 250 n/M0, the maximum deflection value of the partition keel can meet the requirements of the standard that is not greater than 1/20 of the height

5. Good impact resistance. The partition wall is composed of light steel keel and 9 ~ 18mm thick ordinary paper gypsum board. Its longitudinal breaking load is 390 ~ 850n, so its impact resistance is good

6. Good seismic performance. The light steel keel and surface layer are often fixed by the sliding connectors such as shooting nails, pop rivets and self tapping screws, which have good seismic performance. Under the action of seismic shear, the partition only produces support sliding, while the light steel keel and the surface itself bear little force and will not be damaged

7. It can improve the effect of heat insulation, sound insulation and indoor utilization. Because the light steel keel partition covers a small area, for example, the partition composed of Q75 light steel keel and two layers of 12mm gypsum board is only 99mm wide, but its thermal insulation performance is far more than a brick thick wall. If the light steel keel is filled with rock wool and other thermal insulation materials, its thermal insulation effect can be equivalent to a 37mm thick brick wall. Usually, this material is used in the partition walls or ceilings of entertainment places, meeting rooms, offices, etc., which can not only solve the problem of sound insulation and heat preservation, but also improve the indoor utilization rate

II. Disadvantages: it is composed of main keel, cladding keel and hanging fasteners. It needs to be leveled, so it needs a height of at least 100mm to 150mm, which takes up more top space. And there are also high requirements for the construction process, which can only be made into straight lines, which is not suitable for special modeling

summary of the editor: the relevant contents of the advantages and disadvantages of light steel keel will be introduced here first. There are two kinds of keels commonly used in the market: light steel keel and wood keel. The wood keel will not be introduced today. If you need knowledge about the difference between wood keel and light steel keel, you can continue to pay attention to the articles compiled by Xiaobian or pay attention to them, and relevant articles will be uploaded later

济南妇产医院

西安银屑病医院

北京眼科医院

Copyright © 2011 JIN SHI