◇ Develop and popularize ZC-470 3600 vertical seam aluminum galvanized roofing system. During the construction process, the roof panel is made on site and the whole panel is laid. By connecting the roof purlin with the sliding bearing, the stress damage of the roof panel caused by thermal expansion and cold contraction is avoided, and the technology of prefabricated holes with fat nails is developed, which effectively avoids the shortcoming of easy expansion in the process of roof laying. 3600 vertical seam bite connection. The roofing system has many advantages, such as long service life, good self-cleaning performance, good airtight and waterproof performance, high efficiency and energy saving, remarkable load-bearing and wind-resistant performance, good temperature adaptability, safety, stability, accuracy and stability. , which has been recognized by customers and widely used in engineering practice. The typical project is the joint workshop of Alfaco Zhongbei Vacuum (Shenyang) Co., Ltd.
◇ The roof lighting board is made of new glass fiber reinforced plastic, which is waterproof and fireproof, and has high light transmittance, which can be consistent with the shape of the roof panel and realize effective connection with the roof panel; In terms of construction technology, the middle bracket is used for support, and the joint surface with the roof panel adopts a double-layer waterproof system, that is, the foam rod is bonded and filled with water-stop tape first, and then the weather-resistant structural adhesive is injected between the color plate and the filled rod for sealing, so as to ensure the effective connection and sealing with the roof panel and achieve the best waterproof effect.
◇ A new flexible waterproof material, Detai cover plate, is selected for the protruding parts of the roof, such as the hole of the roof fan, which is characterized by aging resistance, convenient installation, synchronous deformation with thermal expansion and cold contraction of the roof, and outstanding waterproof performance; In the construction technology, the flexible material is directly fixed with the roof by color battens, and then sealed, which is simpler and more effective than the traditional technology of making skeleton first and then sealing, which improves the construction efficiency and ensures the quality at the same time. The above roof system has been accepted and adopted by most users.
The company developed and popularized ZC-300 aluminum-zinc plated profiled steel plate. The profiled steel plate is mainly used for wall maintenance, with smooth surface and good integrity, which has the decorative effect of metal curtain wall, making the building facade beautiful and generous, with no exposed screws on the whole plate, and good corrosion resistance and decoration. The typical project is the workshop project of Heat Treatment and Gear Machinery Division of Shenyang Blower Group Co., Ltd. (see Annex II for details).
The company cooperates with Canada and other North American countries to develop and promote light prefabricated residential systems. Based on the cold-formed thin-walled steel structure system, the building system is an assembled wall (system) which is made of 0.4 ~ 3.3 mm thick hot-dip galvanized steel plates rolled into thin-walled steel ribs with C-shaped and U-shaped cross sections, and then assembled into wallboard, floor slab, roof truss and other components through "factory" large-scale production, and quickly assembled on site. The system does not need welding and painting in the construction site, and has the characteristics of light weight, large span and good wind and earthquake resistance.
◇ The technical center of the company designed and built the bus shelter on Hunnan Avenue in Shenyang, and the dish-shaped bus stop sign booth designed by the staff of the technical center was decorated on Hunnan Avenue in June 2008, showing the development status of the steel structure industry in Shenyang, the ancient capital of China during the Olympic Games (see Annex 3 for details).
In view of the special geographical factors of sudden snowstorm in Northeast China, the company carried out experimental research on the mechanical properties and design method of cold-formed thin-walled Z-beam continuous purlin, improved the structural mode and design method of truss purlin, and achieved good results in practice, which was widely used in engineering practice and achieved good social and economic benefits.
In addition, the internal force calculation of portal frame support system is also studied, and a more economical and reasonable design result is obtained by considering the longitudinal force transmission ability of purlins in the support system. Under the guidance of the concept of "scientific management and technological innovation", the company always regards independent innovation as the core of technological research and development, and has carried out research and development from the following four aspects, and achieved initial results:
◇ While accumulating the design experience of steel structure residence, research and use the modular design, detailed decomposition design software and three-dimensional simulation software of steel structure installation of steel structure residence to further improve the design and installation level of steel structure residence.
◇ Taking the high-rise residential building with steel-concrete composite structure in Zone D of Fan Hua Commercial Plaza in Shenyang as an example, through the design analysis of multi-storey steel structure, and comparing with the current structural building scheme, this paper optimizes the design from three aspects: steel frame beam, column, structural scheme, architecture and structural scheme, and studies the architecture and structural scheme suitable for high-rise steel structure residential building. Through the above research, from the perspective of unit steel consumption and steel frame construction quantity, it can be concluded that optimization from structural scheme is the best optimization design method, which can effectively reduce unit steel consumption and beam-column joints, and give play to the advantages of high strength and fast construction speed of steel structure.
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◇ Cooperate with Baosteel to build a steel structure residence, and the developed steel plate shear wall with joints has become the first seismic defense line of the building structure, with excellent seismic performance. During an earthquake, plastic deformation occurs first, which consumes seismic energy to protect the main structure; The new technology-the new outer tube joint has high bearing capacity, excellent seismic performance, simple processing, convenient construction, easy industrial production and improved industrialization.
◇ Conduct the following research on the steel structure energy-saving residential system:
(1) Study the energy-saving residence with H-beam steel structure to form a representative building system;
(2) Research on energy-saving measures: By developing light-weight thermal insulation external wall panels suitable for steel structure characteristics, adopting effective thermal insulation materials and components, selecting efficient and energy-saving heating methods, and individualized energy-saving apartment design, the energy-saving indicators required by the state can be achieved;
(3) Study the layout scheme of steel structure residence, provide practical and comfortable plane layout of steel structure, that is, reasonable spatial organization, and truly embody the "people-oriented" steel structure design concept;
(4) Further research on the steel structure building system, including steel frame structure, central support structure, eccentric support structure, steel frame-concrete core tube, steel frame-concrete shear wall, etc., analyze and compare various structural systems, determine the appropriate structural form of steel structure residence, determine the optimal joint structure, and realize the factory production of components;
(5) Develop waterproof, impervious, heat insulation, light weight, firmness, good decorative effect, environmental protection requirements, easy assembly and construction, and economical and reasonable wallboard system;
(6) Discuss the cooperation between buildings, structures and equipment pipelines through practical projects, and determine the laying methods and practices of pipelines.