Steel frame lightweight roof panel, a large-span truss roof structure 19CJ18/09CG11

Description :

　　Steel frame lightweight roof panel is a large-span truss roof structure

　　Steel frame lightweight roof panel is a large-span truss roof structure

　　Sound insulation: The average sound insulation of the board is above 40 dB, meeting the requirements of sound insulation for advanced acoustic buildings such as studios. 7) Durability: the selection of materials and construction practices are carefully designed and combined, so that the design service life of the product can reach 50 years. The core plate is made of inorganic materials, with good stability and anti-aging, and its service life is equivalent to that of concrete materials. The diameter of the cold drawn steel wire at the bottom of the plate is 3 mm~5 mm, the protective layer is more than 20 mm, and the moisture absorption rate is lower than 0.1%. The plate has strong resistance to acid, alkali and other gases. After repeated freezing and thawing, the volume and strength have almost no change. 8) Explosion relief: meets the requirements of special building explosion relief and fragility. Multiple experiments have shown that during the explosion process, the steel frame still remains on the main structure of the building, and the core material is instantly crushed, achieving the purpose of venting without causing further damage. 9) Seismic resistance: Lightweight panels are beneficial for seismic resistance, and with reasonable seismic node design, they can meet the seismic fortification intensity requirements of level 8. Moreover, when an earthquake occurs, the panels cause less secondary disasters, making them an ideal component material for buildings in earthquake prone areas. 10) Energy saving and environmental protection: The core material is mainly natural inorganic material, which does not release toxic and harmful substances, and the board has good breathability, making living healthy and comfortable. It belongs to the product of comprehensive resource utilization. 11) Quick installation and easy use: With fast installation speed and fewer construction steps, it can greatly shorten the construction period. Customization can be made according to actual needs. It can meet special usage requirements such as opening holes and hanging, and the board is a skylight, providing a convenient and reasonable solution for supporting construction such as fan equipment, lightning protection systems, and secondary decoration. 12) Easy maintenance: The board is transported to the site and directly lifted to the installation site. If there is any damage, the manufacturer's matching raw materials can be used for on-site mixing and repair. And it can be partially replaced during later use without damaging the overall structure. The construction process of 3 steel skeleton lightweight panels in this project uses steel structural beams in the middle of the roof, and steel skeleton lightweight panels for the roof panels. The plan is to use a 200 ton on-site crane for the installation of beams, and the steel frame lightweight slab will be laid in the direction from the eaves to the ridge using an on-site tower crane, as shown in Figure 1. Figure 1 Layout of Roof Structure Steel Skeleton Lightweight Composite Roof Panel Staircase Structure See Staircase Structure See Section 3.1 Reference Code 1) GB 50205-2001 Code for Acceptance of Construction Quality of Steel Structures Engineering; 2) GB50018-2002 Technical Specification for Cold formed Thin walled Steel Structures; 3) JGJ 12-2006 Technical Specification for Lightweight Aggregate Concrete Structures; 4) GB 50207-2012 Code for Acceptance of Roof Engineering Quality; 5) 09CJ20, 09CG12 steel frame lightweight plate; 6) GB 50009-2012 Code for Load of Building Structures. 3.2 Installation process structure retesting → roof panel hoisting → adjustment of panel joints → welding → jointing → self inspection → acceptance. 3.3 Preparation Work 1) Reasonably allocate labor force, equip management personnel and auxiliary labor force according to the progress and quality requirements of the construction project, and form a project team mainly composed of welders, roof panel installers, riggers, and steel structure installers. Responsible for the specific arrangement and organizational management of roof panel installation work,

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