Q: As the Chief Structural Engineer of Sichuan Architectural Design and Research Institute Co., Ltd., what outstanding projects and successful cases do you want to share? How do these projects standardize precast buildings? A: Yibin Jimi Intelligent Optoelectronic Industrial Park is a project that Premier Li Keqiang pays attention to, and is also the No.

The project will be started in January, the worst epidemic in 2020, and will be completed and put into use in one and a half years..

From the perspective of the formulation and implementation of precast building standards in the province, what work do you think needs to be carried out urgently? A: It is urgent to improve and unify the local standards for the whole process of precast buildings in Sichuan Province.

The Standard System for Fabricated Buildings in Sichuan Province, which is being prepared by our institute, shows that the current precast building standards are basically structure based, a small number of building envelope system structure standards, only one precast decoration standard, and there are no current local standards for equipment pipelines, integrated kitchen and bathroom.

Component standardization is the basis for the development of components, which needs to be improved urgently.

Tang Yuanxu, Chief Engineer (Structure) of Sichuan Architectural Design and Research Institute Co., Ltd., and Director of the Design Committee of Sichuan Fabricated Building Industry Association.

In order to accelerate the standardized construction of precast buildings and promote the transformation and upgrading of building industrialization, digitalization and intelligence, the Housing and Urban Rural Development Department of Sichuan Province, the Economic and Information Technology Department of Sichuan Province, the Science and Technology Department of Sichuan Province and the Market Supervision Administration of Sichuan Province jointly formulated and issued the Work Plan for Promoting the Standardized Construction of Fabricated Buildings in Sichuan Province in June 2022.

At present, our institute is assisting Chengdu Housing and Urban Rural Development Bureau to set up a project “Design Guide for Parts”, which is also the focus of work next year.

In 2022, the Work Plan for Promoting the Standardized Construction of Precast Buildings in the Province issued by the Department of Housing and Urban Rural Development and other departments clearly proposed to improve the standard system for the design, production, construction, decoration, acceptance and other links of precast buildings.

Q: As an expert in the field of structural design, how do you think practitioners in this field should change their thinking and jointly promote the development of standardization of precast building components? A: Structural design should change the design thinking and design method, actively improve the design process and information tools, and improve the design efficiency, so as to promote the informatization and intelligence of the entire building construction process.

As the head of the structural discipline, I adopted the cast steel structure scheme after the comparative analysis of multiple schemes.

It is generally reflected in the industry that the standardization of component design and large-scale production cannot be achieved, mainly because of the lack of positive design and reasonable planning in the early stage, resulting in a large number of special-shaped components, a large variety of molds, and various construction projects are not universal, causing serious waste; The low production efficiency of components affects the large-scale production and production capacity, which is also the main reason for the high cost of precast components and the difficulty in controlling the construction technology.

Q: As the director of the Design Committee of Sichuan Fabricated Building Industry Association, from the perspective of industry development, what hot and difficult issues do you focus on in the industry? What are your corresponding work plans? A: As the director of the Association’s Design Committee, I pay more attention to the standardization of parts and design standardization.

Based on the standardization of component dimensions and interfaces, and according to the logic of component assembly, the standardization of component parts is built into the design schemes of all projects in structural design, which can realize the advance of component design and production organization, separate from the promotion process of specific projects, and thus shorten the construction period.

1 project supervised by Yibin Municipal Government in 2020.

Strengthen policy guidance, formulate a standardized design guide for precast buildings, formulate a selection guide for the size and interface of recommended components, and guide the standardization of components; Regularly publish the information of parts and components through the official website or information platform to guide the selection of design and construction units.

The early development of precast buildings mainly focused on the prefabrication of structural systems, and the lack of supporting facilities such as enclosure systems, decoration, equipment pipelines, integrated kitchens and bathrooms resulted in incomplete industrial systems and overcapacity of structural components in some regions.

Personal Profile of Tang Yuanxu, Chief Engineer (Structure) of Sichuan Architectural Design and Research Institute Co., Ltd.

On behalf of Tencent, the structural design of the architectural engineering design project of Plot A and B in Chengdu won the first prize in the engineering survey and design industry; Tencent Chengdu Block A and Block B Building Engineering Design Project, Innovation Incubation Base (Industrial Headquarters Base) Phase I Project R&D Exhibition Center, Sichuan Provincial Standard for Defining Earthquake Resistant High rise Civil Building Engineering, and Sichuan Provincial Atlas of Existing Residential Elevator Addition won the first prize of Sichuan Provincial Excellence Award; The Trial Division of Sichuan Higher People’s Court, Xincheng Middle School, Huayuannian • Xiangnian Square and Huayuannian • Funian Square won the second prize of Sichuan Provincial Excellence Award.

Standing at the height of the precast building structure design industry, the Association provided reflections on the above issues from the perspectives of industry status, technological innovation, application transformation, etc.

In addition, in order to strengthen the technical exchange and sharing within the industry, the Special Committee for Design will hold technical exchange activities for member units every year to exchange and learn the cutting-edge technology and process of precast buildings and successful design experience.

Flat Steel Anchor

The technology systems of European, Japanese and other countries introduced from different regions are different, and the leading structural forms are different, so the technology gap is large.

After the policy was issued, the industry came to the crossroads of standardization transformation: why is it urgent to comprehensively promote standardization since the development of precast construction industry? How will the standardization requirements for component products and construction technology affect the market and even the development direction of the industry? How can relevant enterprises seize the development opportunity to win the future? In order to explore relevant issues, the Publicity Department of the Association interviewed Tang Yuanxu, the chief structural engineer of Sichuan Architectural Design and Research Institute Co., Ltd., and the director of the Design Committee of Sichuan Fabricated Building Industry Association.

The construction period is short, and the plant area is 200000 square meters.

Q: In the new situation of building industrialization, the concept of “standardization” is reflected in all aspects of the precast construction industry.