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Lu Ban was born in the state of Xiaoying (now Tengzhou City, Shandong Province) during the Warring States period
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Lu Ban is a great inventor of handicraft technology and invention in the history of Chinese civilization
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He is the representative of “craftsman spirit”
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At present, the spirit of craftsman is more in line with the needs of the development of the times, and has become an important force to breed and nourish “made in China” and “built in China”, which has important value of the times and extensive social significance“ Luban Award, established in 1987, is an award guided by the Ministry of housing and urban rural development and selected by China Construction Industry Association
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It is the highest honor award for engineering quality in China’s construction industry
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On the occasion of international labor day, in order to further inherit the craftsman spirit and carry forward Luban culture, “construction technology” specially released the album of “Luban Award project observation” to enjoy the first batch of Luban Award projects from 2020 to 2021 with the majority of fans【 Luban Prize project tour No.2 On March 18, a27 plot (1 building, 2 building, underground garage) of Dingjiazhuang phase II (including Liutang) affordable housing project was completed, “Star project” Nanjing Dingjiazhuang indemnificatory housing of East China company of China Construction Second Engineering Bureau once again received the good news of the award
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The research and application of high quality industrialized construction technology of indemnificatory housing formed by the project team’s summary and research won the third prize of science and technology progress award of China Society of architecture
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It stood out from 61 large-scale complex and commercial projects and won the first prize of national green building innovation award, leading the country! Affordable housing is an important livelihood project in China, but there are many problems, such as unreasonable building space layout, low construction efficiency, poor engineering quality, poor living quality and so on
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The research and application of high-quality industrialized construction technology for indemnificatory housing carried out by Nanjing Dingjiazhuang phase II indemnificatory housing project and Nanjing Baishui indemnificatory housing project meet the high-quality requirements of practicability, economy and durability of indemnificatory housing, forming a key technology system with Jiangsu characteristics and leading the construction of indemnificatory housing
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Nanjing Dingjiazhuang affordable housing project provides comprehensive demonstration and experience for the large-scale popularization and application of prefabricated technology in affordable housing in China
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The project has also won the Luban Award of China Construction Engineering, the gold award of Zhan Tianyou excellent residential district and the first prize of national green building innovation award
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Five cores! What are the strengths of the award-winning “research and application of high quality industrialized construction technology for affordable housing”? We should also start with five core technologies
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01 the variable design method of standardization and modularization can be described as the assembly “high-level” playing method, which is equivalent to creating “variable magic space” in each security room
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Conventional prefabricated buildings mostly adopt wet connection mode, with dense shear wall layout and basically unchangeable internal functional space
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In order to meet the potential needs of future households, the project team adopts dry connection and prestressed concrete technology, and uses the characteristics of prestressed concrete structure, such as small section, light weight, high stiffness, high crack resistance, good durability and material saving, Reduce the number of beam members
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At the same time, by improving the degree of standardization and generalization of non stressed components and interior parts, the future users can evolve from one room and one living room to two rooms and one living room
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In addition, it can also be transformed into a suitable old apartment or entrepreneurial space for young people according to the needs, realizing the variable apartment design in the whole life cycle
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02 “three functions” integrated external wall thermal insulation system project developed a sandwich external wall thermal insulation system integrating decoration, thermal insulation and waterproof
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The thermal performance of different connection structures at the joints of the sandwich insulation exterior wall panel is simulated parametrically, and the connection nodes are optimized
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The edge sealing technology of polyurethane insulation panel integrating thermal insulation and waterproof is proposed innovatively, which significantly improves the heat insulation and waterproof ability of the horizontal joints of the prefabricated sandwich insulation exterior wall, and effectively solves the problems of obvious thermal bridge at the joints of the prefabricated sandwich insulation exterior wall It is difficult to solve the problem of water seepage
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03 improve the grouting observation technology of prefabricated shear wall sleeve connection, add high-level grouting compensation observation pipe in the shear wall, after grouting, the slurry in the grouting compensation observation pipe drops, which can play the role of grouting reinjection and confirm whether the slurry in the sleeve is full, the grouting plumpness can reach 100%, and effectively improve the construction quality and engineering quality of vertical component sleeve grouting connection
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04 high performance composite sandwich insulation maintenance structure project applies prefabricated sandwich insulation exterior wall panel, which integrates the functions of load-bearing, enclosure, thermal insulation, waterproof, fireproof and decoration, and realizes green construction without plastering, masonry and external scaffold
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It is the first large-scale project adopting prefabricated sandwich insulation composite exterior wall in Jiangsu Province, which completely solves the problem of external insulation easy to fall off
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05 assembly decoration integration technology as the first large-scale assembly decoration design and construction project in Jiangsu Province, the project applies the assembly decoration technology system based on calcium silicate composite board system
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The assembled “building blocks” are not only limited to beams, walls, composite floors, balcony, stairs and other components, but also fully use the standardized design, industrial production, indoor decoration Assembly construction can be described as “LEGO house” from inside to outside
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Each house adopts eight integrated systems: floor, wall, ceiling, suit door, quick installation water supply, thin drainage, bathroom and kitchen
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In short, all these decoration raw materials are made into parts in the factory and then transported to the site for combined installation
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The assembly rate of partition wall, kitchen, toilet and railing has reached 100%
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The application of assembly decoration also completely “bid farewell” to the dry operation of cement mortar, and put an end to the common quality problems such as hollowing and cracking of ceramic tiles
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In the traditional decoration, a 55 square meter building takes at least two or three months, while the prefabricated decoration can be completed in 10 days by three workers, which greatly improves the delivery schedule
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Through the adoption of a number of innovative technologies, the accumulated cost of the project is about 10 million
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Source: East China company of China Construction Second Engineering Bureau
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