What is the performance of grid accessories?

       Due to the characteristics of large span, wide coverage and light structure, the steel structure grid parts should be processed to ensure its good stability and safety. At present, it has become a widely used structural form and is widely welcomed by the public. The selection of grid material is also very convenient, most of which are Q235 steel and Q345 steel.

       Seismic resistance: because most of them are designed as low floors, so there is a strong difference between the slopes of houses and other information. If different frame structures are adopted, there is a difference between the performance of safety systems, which can be different at the beginning of application. In many cases, natural protective covers will be formed, which can be used in the vibration of houses With enough time to prepare to flee, its structure is particularly good. Grid processing is based on the requirements of different businesses to carry out the process research.

       Wind resistance: light steel structure building has light weight, high strength, good overall rigidity and strong deformation ability. The self weight of the building is only one fifth of that of the brick concrete structure, which can resist the hurricane of 70 meters per second, so that life and property can be effectively protected.

       Durability: the residential structure of light steel structure is composed of cold-formed thin-walled steel member system, and the steel bone is made of super anti-corrosion high-strength cold-rolled galvanized steel plate, effectively avoiding the influence of steel plate corrosion in the process of construction and use, and increasing the service life of light steel members. The structural life can be up to 100 years.

       Thermal insulation: glass fiber cotton is the main thermal insulation material, with good thermal insulation effect. The insulation board used for the external wall can effectively avoid the phenomenon of "cold bridge" of the wall and achieve better insulation effect. The thermal resistance of R15 insulation cotton with the thickness of about 100mm can be equivalent to the brick wall with the thickness of 1m.

       Health: dry operation construction to reduce the environmental pollution caused by waste. The steel structure materials of the house can be 100% recycled, and most of other supporting materials can also be recycled, meeting the current environmental awareness; all materials are green building materials, meeting the requirements of ecological environment, which is conducive to health. High temperature furnace is the most widely used among many furnaces.

There are steel pipes. The interface form of two kinds of bar members of angle steel is more common now in the form of steel pipe. The inspection method and allowable error value of welding ball, bolt ball, high-strength bolt and bar deviation shall be in accordance with the provisions of jgj78. The inspection of steel grid can be divided into the bearing capacity of nodes, welds, dimensions and deviations, the unevenness of members, the curvature of steel grid and the support of grid. The unevenness of the axis of the member in the steel grid can be detected by the method of pulling wire, and its unevenness shall not exceed one thousandth of the length of the member. The grid support can be inspected by observation or by steel ruler. The support shall be stable and reliable; the cushion block (or plate) at the bottom of the support shall be free of defects, damages and instabilities.