At present, he is in charge of the national natural science foundation project "Research on fatigue mechanism and residual life evaluation method of orthotropic steel bridge deck", the Ministry of Education's new century outstanding talent support project "Research on static and fatigue performance of high-performance steel bridge" and the Fok Ying-tung Young Teachers Fund project "Research on static and fatigue performance of high-performance steel-concrete composite beam bridge". The project "Assessment of Fatigue Residual Life and Service Safety of Existing Steel Bridges" is funded by the authors of excellent doctoral dissertations in universities all over the country, and the sub-topics of highway engineering industry standard project "Code for Design of Highway Steel Structure Bridges", "Detailed Rules for Design and Construction of Steel-concrete Bridges", "Technical Guide for Design and Construction of Long-span Prestressed Concrete Girders" and "Load Standard for Highway Bridges" are compiled by the Ministry of Communications. The national western transportation science and technology project "Research on construction improvement technology and quality control method to improve bridge durability", "Research on bridge design load and safety appraisal load", Shaanxi transportation science and technology project "Research on the method of strengthening concrete bridge with steel plate-concrete combination and quality evaluation technology", "Research on safety evaluation of hollow slab and low box girder bridge based on fatigue fracture theory", Hebei transportation science and technology project "Research on safety management and evaluation technology system of highway girder bridge" and Nanjing subway prestressed concrete U-beam. Participated in scientific research projects include the national western transportation science and technology project "Research on damage assessment and safety and reliability assessment technology of concrete bridge" and "Research on reasonable and durable structure of concrete bridge".