Chongqing light steel villa cost, Chongqing light steel villa manufacturer, prefabricated bathroom (design, construction)

Driven by the rapid development of society and economy, the public's requirements for residential building structures are gradually increasing, which makes the built structures need to have strong application functions on the basis of ensuring quality. At present, the application of light steel structures in residential buildings is becoming more and more extensive, which plays an important role in improving the lightness and durability of residential structures. Application of light steel structure in residential buildings 1. Application of steel structure design ideas in residential buildings In order to make the steel structure safer and more reliable, in the design, it is necessary to ensure that the steel structure has sufficient stiffness and strength, and at the same time, it must be consistent with the building's It meets the requirements of use and has a certain durability. In the preparation of the structural plan, the principle of saving materials should be followed, and the weight of the steel structure should be reduced without affecting the reliability of the structure. 2. Construction preparation before installation of multi-layer light steel structure Before the construction of light steel structure, the steel components to be used should be re-checked, including component welding inspection certificate, welding material quality certificate, steel material material inspection certificate, etc. During the on-site inspection work, the installation location and number of each steel component should be determined based on the component lofting drawings and design drawings, and they should be stacked reasonably according to the type, so as to facilitate the smooth implementation of the installation work. In addition, it is necessary to check the specifications and quantities of accessories, friction surfaces of joints, quality of weld grooves, position and diameter of bolt holes, angles and positions of connecting plate parts, geometric dimensions of steel members, etc., which can effectively reduce the size modification in high-altitude operations number of times. In order to effectively control the quality of light steel structure construction, the friction surface of the component should be processed by sandblasting method first, and the test piece should be extracted and used in the anti-slip coefficient test. Secondly, in the process of bolts entering the site, the design of relevant material specifications and models and the condition of the factory certificate should be checked, and the rationality of the bolt connection ratio should be ensured, and the pre-tension test should be carried out in an orderly manner. It is worth noting that the column foundation on site should be reviewed before installation, and the elevation datum plane of the embedded bolts and the positioning axis of the column center line should be checked to ensure that they can meet the specified standards. 3. The application of safety assurance measures in steel structure construction Before construction, do a good job in safety technical disclosure, and assign safety management personnel to manage the construction personnel and machinery and equipment on the construction site: Before the operation, carefully check whether the construction tools, machinery and equipment are Complete, especially for safety devices, to increase the inspection efforts to see if they are working properly. When working at heights, it is forbidden to place materials and tools at will, and they must be placed in a safe place: send a special person to instruct the lifting on site to ensure the stability of the lifting or lowering of steel components, and it is strictly forbidden for operators to perform emergency braking operations: strengthen the mechanical and electrical equipment. Rainproof measures shall not allow non-professionals to operate electromechanical equipment. 4. Installation of high-strength bolts The main connecting equipment of steel structures is high-strength bolts, and its detection and installation are important contents of light steel structure construction. Generally, when storing, shipping and supplying high-strength bolts, the principle of light handling should be followed to effectively prevent contamination and damage to the bolts. In the process of installation, it should be ensured that it can pass through the hole freely, and the perforation cannot be hammered, and the direction of the perforation should be consistent, ensure that there is a washer on one side of the nut, and the bolt connection plate should have a flat contact surface. In addition, when tightening the bolts of the upper beam of the same column, the upper beam should be tightened first, then the lower beam should be tightened, and the middle beam should be tightened: when tightening the bolts of the same beam, the primary and secondary beams should be tightened in sequence. bolt. If there are structural reasons such as square tube supports and stair columns, it is difficult to use the electric wrench part, you can use a long-handled force measuring wrench to tighten the bolts, and carefully check the bolts at the beam-column connections on each floor. 5. Node design and material selection of residential buildings In the system of light steel structure, the design of structural parts such as nodes and components of residential buildings is very critical, and designers should pay attention to it. The design of light steel structure joints mainly includes: column-to-column joints, beam-to-column joints, beam-to-beam joints, column cap joints, column foot joints, etc. In the whole design process, the node structure should be guaranteed to be reliable and safe, and a stable, simple and safe construction process should be selected as much as possible, which can greatly reduce the connection of on-site welds. The light steel joints are divided into three parts: semi-rigid joints, rigid joints, and hinged joints according to the characteristics of force transmission.It is widely used in residential building design. 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