The China Steel Structure Association held a scientific and technological achievement evaluation meeting on the “Complete Construction Technology for the Overall Improvement of Large-scale and Complex-shaped Steel Structures with Uneven Rigidity”.
Recently, the China Steel Structure Association organized a video conference on the evaluation of scientific and technological achievements of the “Complete Construction Technology for the Overall Improvement of Large-scale Complex Special-shaped Steel Structures with Uneven Stiffness”. The project was completed by China Metallurgical (Shanghai) Steel Structure Technology Co., Ltd.
The evaluation meeting invited the chief expert of China Baowu Iron and Steel Group Co., Ltd. He Mingxuan, a professor-level senior engineer, as the team leader, Professor Luo Yongfeng from Tongji University, a professor-level senior engineer at CSSC Jiangnan Heavy Industry Co., Ltd., Associate Professor Song Zhensen from Shanghai Jiaotong University, and Shanghai No. Han Xiangke, chief engineer of Huazhong Company, is a member of the senior engineer. MCC (Shanghai) Steel Structure Technology Co., Ltd. Chief Engineer Li Min, Deputy Chief Engineer Liu Minglu, Dean of Design and Research Institute Luo Xinglong, Technical Section Chief Zhu Weijun, East China Company Deputy Chief Engineer Shi Lei and other project completion persons attended the meeting.
At the meeting, MCC (Shanghai) Steel Structure Technology Co., Ltd. Sui Bingqiang, on behalf of the project team, reported on the research background of the project, key innovative technologies and application of results. The evaluation committee members reviewed the technical data, after questioning and discussion, they believed that the project had studied the integrated construction technology of large and complex special-shaped steel structures with uneven rigidity based on the characteristics of the new Nanjing Art Museum project. The main innovations achieved are as follows:
(1) Developed a multi-point hybrid support lifting system for large and complex spatial structures with uneven rigidity, which solved the problem of uneven structural forces during the lifting process and ensured construction safety.
(2) Developed intelligent measurement and control technology, hydraulic lifting automatic synchronization correction technology and complex multi-point matching precision closing technology, and combined these technologies to apply to the lifting construction of large and complex space steel structures, achieving precise synchronization and precision in the lifting process Counterpoint.
(3) Developed the method of pre-arching correction for the integral lifting of the steel structure, and the method of assembling the ground of the irregular polygonal steel structure truss, which solved the problem of precise forming of the complex truss structure.
(4) The selection and layout optimization method of steel structure hoisting equipment based on the BIM model has been developed to improve the efficiency and accuracy of hoist selection.
The project has obtained 1 software copyright, 8 national invention patent acceptance and 1 utility model patent acceptance. The above results have been applied to steel structure projects such as the Nanjing Art Museum’s new museum project, which has significant economic and social benefits and environmental protection benefits, and has broad application prospects.
The evaluation committee believes that the project results have reached the international advanced level as a whole. Among them, the multi-point hybrid support lifting system, intelligent measurement and control technology, hydraulic lifting automatic synchronization correction technology and complex multi-point counterpart precision closing technology have reached the international leading level.
