1. scientific research in scientific research, the main research directions are: (1) structural behavior research of long-span bridges; (2) Research on fatigue and stability of bridge steel structure; (3) Research on detection and evaluation theory and reinforcement technology of existing bridges and new bridges. He has presided over or participated in more than 20 scientific research projects (including 2 national natural science foundation projects, 2 national scientific research projects 1, 2 Sichuan provincial projects 1 and 2 major horizontal scientific research projects). Published more than 10 papers in core journals or publicly published academic journals. 2. Teaching and personnel training focus on many courses, such as introduction to bridge engineering, theory and design of long-span bridges, steel structures, steel bridges, etc. Participate in compiling textbooks such as Railway Works, Introduction to Bridge Engineering, Design and Construction of Steel Bridges, Steel Structures, and Long-span Suspension Bridges. During the period from 1999 to 2004, I participated in the compilation of the railway encyclopedia "Works and Engineering", which was entrusted by the Ministry of Railways and edited by the School of Civil Engineering of our school, with a total of160,000 words.

* * * Directed 16 graduate students, 8 of whom have graduated.