What performance should grid accessories have?

What performance should grid accessories have?

Due to its high-quality characteristics such as large span, wide coverage, and light structure, steel structure grid structures should ensure good stability and safety during the processing of grid components. Currently, it has become a widely used structural form and is widely welcomed by the public. The selection of grid materials is also very convenient, with most of them using Q235 steel and Q345 steel.

Seismic resistance: Because most buildings are designed with relatively low floors, there is a strong difference in slope information between the buildings. Different frame structures have different safety system performance, which can be different at the beginning of use. In many cases, natural protective covers are formed, which can have sufficient time to prepare to escape during house vibration, Its inherent structure is particularly good. The processing of grid frames is conducted based on the requirements formulated by different merchants for technological research.

Wind resistance: Lightweight steel structure buildings have light weight, high strength, good overall rigidity, and strong deformation ability. The self weight of a building is only one-fifth of that of a brick concrete structure, which can withstand hurricanes of 70 meters per second and effectively protect life and property.

Durability: All light steel residential structures are composed of a cold-formed thin-walled steel component system, and the steel ribs are made of super anti-corrosion high-strength cold-rolled galvanized sheet, effectively avoiding the impact of steel plate corrosion during construction and use, and increasing the service life of light steel components. The structural life can reach 100 years.

Thermal insulation: The insulation material used is mainly fiberglass cotton, which has a good insulation effect. The insulation board used for the exterior wall effectively avoids the phenomenon of "cold bridge" on the wall, achieving better insulation effect. The thermal resistance value of R15 insulation cotton with a thickness of about 100mm can be equivalent to that of a 1m thick brick wall.

Health: Dry construction, reducing environmental pollution caused by waste, 100% recycling of building steel structure materials, and most of other supporting materials, in line with current environmental awareness; All materials are green building materials that meet the requirements of the ecological environment and are beneficial to health. High temperature furnaces are the most widely used among many furnaces.

There are steel pipes. The interface form of two types of members, angle steel, is now commonly used in the form of steel pipes. The detection method and allowable error value of deviation of welding balls, bolt balls, high-strength bolts and rods shall be in accordance with the provisions of the Standard for Quality Inspection and Assessment of Grid structural engineering (JGJ78). The inspection of steel grid structures can be divided into items such as the bearing capacity of nodes, welds, dimensions and deviations, unevenness of members, winding of steel grid structures, and grid support. The unevenness of the axis of the members in the steel grid frame can be detected by pulling wires, and its unevenness shall not exceed one thousandth of the length of the members. The grid support can be inspected by observation or by the user using a steel ruler. The support should be stable and reliable; The bottom cushion block (or pad) of the support should be free from defects, damage, and instability.