2、 Aiming at the key technical problems of the complete set of technology for precast steel structure buildings, the project team has carried out systematic research in recent 6 years, and the main innovative achievements are as follows: 1 The building standardization design technology of GSIN cast steel structure building is established, and the standardized residential and office buildings suitable for GSIN cast steel structure system are developed.

The economic and social benefits and environmental protection benefits are significant, and have broad application prospects.

On December 15, 2021, the scientific and technological achievement evaluation meeting of “GSIN cast steel structure building complete set technology research and engineering application” was grandly held in Crowne Plaza Shenzhen.

According to the official report of China Steel Structure Association, China Steel Structure Association held the scientific and technological achievement evaluation meeting of “GSIN cast steel structure building complete set technology research and engineering application” (click the text to view the link)..

Research and develop the “three plate” system technology of GSIN cast steel structure building: put forward the bearing floor form and selection method of GSIN cast steel structure system; A new precast reinforced concrete floor and its design method are developed; The design method of light slab building system (including curtain wall) of GSIN cast steel structure system is established.

3、 The research results have been demonstrated and applied in many office buildings, hospitals, schools and residential buildings such as kumak building in Shenzhen and ningxiyue mansion in Yancheng, Jiangsu.

“Innovation and self-improvement”, Jinxin Lvjian will work together with scientific research partners to continue to explore and move forward in the field of promoting the commercialization of cast steel structures.

3.

The complete set of construction technology of GSIN cast steel structure building is established: the digital life cycle management scheme of GSIN cast steel structure system is put forward; A solution for the standardization of components and joints of low-rise and multi-layer GSIN cast steel structures is established.

Professor Yue Qingrui, academician of Chinese Academy of engineering, was invited as the leader of the expert group of the scientific research achievement evaluation meeting.

The expert group believes that the achievement has reached the international advanced level on the whole, among which the precast steel structure frame through core plate beam column connection technology and the new precast reinforced concrete floor slab and steel beam connection technology have reached the international leading level.

Their seismic performance is tested and analyzed by finite element method, and the corresponding design methods are given.

Evaluation opinions of the expert group I.

At the meeting, the expert group strictly reviewed the technical data of the results, listened to the report of research results, and reviewed six international and domestic leading novelty search reports of the results.

Wang Lijun, a national master of engineering survey and design, Hou Zhaoxin, a national master of engineering survey and design, was the deputy leader, Professor Wang Zhan of South China University of technology, and Zhang Liangping, a master of survey and design in Guangdong Province, Professor Zhang Sumei of Harbin Institute of Technology (Shenzhen) and Professor Chen Zhenming, chief engineer of CSCEC Steel Structure Engineering Co., Ltd., are members of the expert group.

4.

Round Bar Ferrule

The evaluation materials submitted are complete, informative and meet the evaluation requirements.

The structural selection and connection nodes of GSIN cast steel structure buildings are developed: for different types of buildings such as hospitals, schools, office buildings and residences, the structural selection standards of cast steel structure and the selection standards of beam column joints are put forward; The L-shaped wide leg composite special-shaped column system and its connection joints and through core plate connection joints suitable for cast steel structure system are developed.

The evaluation meeting was presided over by Li Qingwei, Secretary General of China Steel Structure Association.

2.

After inquiry and discussion, the expert group believes that “this achievement has reached the international advanced level on the whole, among which the through core plate beam column connection technology of cast steel structure frame and the connection technology of new precast reinforced concrete floor and steel beam have reached the international leading level.” The scientific and technological achievement of “GSIN cast steel structure building complete set technology research and engineering application” is the scientific research and application achievement jointly developed by Jinxin green construction in the past 10 years in conjunction with Tsinghua University and other colleges and enterprises.

It is in the development process of Jinxin, In 2018, academician Zhou Xuhong led the expert group to identify that the “complete set of technology system of Jinxin green building cast steel structure light plate building” has reached the domestic advanced level.