He has served as director of china civil engineering society, member of Education Committee, Space Structure Committee, vice president of Space Steel Structure Association of China Steel Association and vice president of Residential Steel Structure Association. 1962 hyperbolic parabolic saddle-shaped unsolvable roof was successfully designed and studied for the first time in China and applied to the gymnasium project of Tianjin University. 1965 is the first welded hollow spherical joint grid structure in China, which was first applied to the roof of the auditorium of Tianjin Science and Technology Commission and enjoyed a high reputation. Now thousands of grid structures have been popularized, with remarkable social and economic benefits. More than 90% of the roofs of venues in the 1 1 Asian Games adopted this scientific research achievement. The monograph mainly includes twelve books, such as Structural Design of Flat Grid Structure. In recent years, the main research projects include: new grid structure and joints, calculation of various reticulated shell structures, assembled new grid structure, aluminum alloy spherical reticulated shell structure, super-long span (1> 100m) Single-layer steel dome reticulated shell tensegrity cable dome, retractable structure, detachable structure. * * * More than 0/00 papers have been published, and the award-winning projects include: Research on Four-column Grid Structure and Jacking Technology won the third prize of Excellent Scientific Research Achievements of the State Administration of Architecture, and the second prize of Design Code for Steel Structures won by the State Planning Commission. In recent years, Tianjin Power Grid Development Company was established, which created a good experimental research base for scientific research, teaching and training graduate students. More than 100 graduate students have been trained. Enjoy special state allowance. The first batch of registered structural engineers in China.