by Recently, the “special-shaped column double steel plate composite shear wall residential building system” independently designed and developed by China Construction Science and Engineering Co., Ltd.
and Tianjin University has been successfully applied in the project construction, which provides a solution for the application of steel structure cast building in the field of high-rise residence.
Based on the existing core product system of precast buildings and the steel structure R & D team of Tianjin University, CSCEC science and Engineering Co., Ltd.
has developed a new precast building system “special-shaped column double steel plate composite shear wall residential building system” suitable for high-rise residential buildings in combination with its own industrial characteristics.
Next, Let’s learn about the “special-shaped column double steel plate composite shear wall residential building system” 01.
The overall design technology of the five core technologies and new system.
Through simulation, derivation, analysis and calculation formula, put forward the design method based on computer design software, efficient joint connection technology innovation, and put forward the column beam connection π joint The connection node between shear wall and floor slab is convenient for processing and installation.
The steel plate shear wall connection screw with full professional overall integrated technology fully considers the unity of fire prevention, electromechanical and interior decoration to realize the structural system, electromechanical system The perfect combination of the built-in system and the automatic manufacturing technology, the components adopt the profile tempering welding, and all adopt the automatic welding to realize the industrial production.
The handover treatment technology of non-homogeneous materials is deeply studied.
The connection between the special-shaped column, steel beam and wallboard is further solved Sound insulation and other problems improve building comfort and durability.
The research and development of the system has effectively solved the five major problems existing in the current steel structure precast housing, such as imperfect structural system, insufficient standardization, short boards in the enclosure system, unpopular precast decoration and inconvenient construction.
02.
Recognized by the industry, CSCEC has published 13 papers on the key technologies and innovations of the system, Obtained 8 patents.
In addition, the technical standard for residential buildings with special-shaped columns and double steel plate composite shear walls (Draft for approval) edited by the company has been approved and officially released by the association and will be implemented on March 1, 2022; The technical specification for concrete filled rectangular steel tubular composite special-shaped column structure (T / cecs825-2021), which is jointly compiled, shall come into force on August 1, 2021.
03.
Practical application of achievements at present, the system has been successfully applied to the structural design and calculation model of ▲ 5# building project of Qingdun 9# plot 5# building in xiaojiajiang District, Beilun District, Ningbo, with CSCEC north region as the design consulting unit.
The project is a steel structure residential building, with a construction area of about 6000 square meters, 11 floors, a bottom floor height of 4.5 meters and a standard floor height of 2.9 meters, The total height is 32.3m (cornice), the plane length of the standard floor is 43.8m, the width is 11.9m, and the layout is three ladders and six households.
▲ 5# building structure design · calculation model the project has completed the capping of the main structure, which is a successful case of the application of “special-shaped column double steel plate composite shear wall residential building system” to steel structure buildings.
It has been included in the resource database of domestic well-known real estate enterprises and the guidelines for precast steel structure residential system in Ningbo, and will be popularized and applied in more precast residential projects.
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