Editor’s NoteIn order to facilitate the faster and better dissemination and promotion of innovative highlights such as new policies, new concepts, new technologies, new materials, new products, new projects, and new experiences in the industry, and to promote the sustainable and healthy development of prefabricated buildings, our industry platform has opened a new column – “Architecture Talk” since November last year. The column is presented in the form of text recordings of character dialogues, as well as audio, video, and images. The content includes local discussions, expert discussions (high-end interviews), corporate discussions, and project discussions. It has been published for more than 20 issues so far. Please kindly invite all prefabricated building demonstration cities, prefabricated building industry base enterprises, national prefabricated building industry technology innovation alliance enterprises and experts, prefabricated building demonstration projects, prefabricated building technology innovation bases, etc. across the country to actively contribute articles or provide interview leads.Contact email 546665581@qq.comContact phone number: 010-66238815What we recommend in this issue is:Focus on the first prefabricated steel structure high-rise building in South China: Kumak Building project
GuideShenzhen asThe first batch of prefabricated building demonstration cities in ChinaIn recent years, relevant policies have been continuously implemented, industrial supporting facilities have been continuously improved, and market enthusiasm has continued to rise. Prefabricated building projects have shown scale growth, and currently the total area of prefabricated buildings in the city has exceededone thousand and three hundredTen thousand square meters of prefabricated building projects that have passed technical certification at the city and district levels have been completedeightyMore than one.The project to be revealed in this issue is full of honors and extraordinary significance: Guangdong Provincethe first batchPrefabricated building demonstration project, 2018 Guangdong Province Steel Structure Gold Award“Guangdong Steel Award”South China regionthe first buildingPrefabricated steel structure high-rise building, Shenzhenthe first onePrefabricated steel structure projects certified through technology …..It isKumak Building ProjectLet’s learn about it together!
Project OverviewThe Kumak Building project is located in the Technology Industrial Park of Guangming New District, Shenzhen. The east side is a high-end talent room, the south side is an open space, the west side is a photoelectric enterprise accelerator, and the north side is the Jinxinnong Building. It is 2500 meters away from Guangming Street Station on Metro Line 6 (under construction).The main body of this project is a fully assembled steel structure, with prefabricated components including prefabricated steel columns, prefabricated steel beams, and prefabricated steel stairs, where the steel columns are steel-concrete columns. All prefabricated components are made into finished parts by the processing plant and assembled on site uniformly. It has the characteristics of light structural weight, good overall performance, and green and sustainable materials.The floor slab adopts reinforced steel truss floor support plate cast-in-place floor slab, and the prefabricated components include prefabricated reinforced steel truss floor support plate. Prefabricated components on each floor are processed uniformly by the factory and assembled on site. Eliminate the need for concrete floor scaffolding, formwork installation, and dismantling work.The interior and exterior walls adopt prefabricated wall panels, and the prefabricated components include prefabricated ALC lightweight interior wall panels and prefabricated ALC lightweight exterior wall panels. Prefabricated components are uniformly processed by professional manufacturers and assembled on site. Eliminating the traditional masonry and plastering processes, the wall materials are green and sustainable.This prefabricated structural engineering project has successively won the “Guangdong Steel Award”, “Prefabricated Design Stage Certification”, and “Prefabricated System Certification Opinion”.
Construction unit:Shenzhen Kumak New Technology Co., LtdShenzhen Jinxin Green Building Co., Ltd. (Construction Agency)Design Unit:South China Chuangtu Design Co., LtdConstruction general contractor:China Construction Seventh Engineering Bureau Co., LtdComponent production unit:Shenzhen Jinxin Green Building Co., LtdChangxing BIM Construction Yitong Co., LtdDongguan Zhenyu Steel Structure Engineering Co., LtdBIM tutorial position for supervision sheet:Shenzhen Hechuang Construction Engineering Consulting Co., LtdStandardized designStandardized design of building types and layoutsThis project consists of one individual research and development office building, with a 3-storey podium and a 17 story tower. Among them, 4 floors are elevated floors and 5-17 floors are standard floors. The roof of the tower is a sky garden.
Standardized design of prefabricated componentsThe prefabricated components of the project’s steel structure include prefabricated steel columns, prefabricated steel beams, and prefabricated steel stairs. The prefabricated steel components are further designed according to the construction drawings, and a three-dimensional model of the steel structure is created using Tekla structure software. The detailed processing drawings of individual components are output, and the nodes are clear and distinct.The main floor slab of the project adopts a combination of steel truss floor slabs, and the prefabricated steel truss floor slabs are processed according to the layout plan provided in the design drawings.
The main wall panels of the project are prefabricated ALC lightweight exterior wall panels and prefabricated ALC lightweight interior wall panels. The prefabricated ALC lightweight wall panels are processed according to the layout plan provided in the design drawings.
Application of prefabricated technologyPrefabricated steel componentsThe main structure of this project is made of all steel, with prefabricated steel columns connected by welding, and prefabricated steel beams and stairs connected by high-strength bolts.
Prefabricated steel truss floor slabThe floor slab is cast-in-place using steel truss formwork, and bolts are welded onto the steel beams.
Prefabricated ALC lightweight exterior wall panelPrior to installation of prefabricated ALC lightweight exterior wall panels, channel steel shall be pre embedded in the floor slab. The ALC exterior wall panels shall be connected to the angle steel and pre embedded parts by welding. The prefabricated ALC lightweight exterior wall panels shall be fixed to the angle steel by welding with hook bolts.
Prefabricated ALC lightweight interior wall panelBefore installing prefabricated ALC lightweight interior wall panels, 200mm guide walls need to be poured on the walls of bathrooms, tea rooms, etc. The bottom of the interior wall panels should be fixed with pre mixed mortar, and the top of the panels should be anchored with pipe clamps.
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