Research on the technical system of long-span green bridge construction

In order to promote the development of green and low-carbon construction of bridges and help the high-quality development of the transportation industry, based on the concept of life cycle, on the basis of in-depth analysis and clear definition of the concept connotation of green long-span bridges, the general requirements for green bridge construction are proposed, and the green construction technology system of long-span bridges is constructed from 17 aspects of three dimensions of bridge design, construction, maintenance and operation, and the technical points of long-span green bridges are put forward from three perspectives of design, construction, maintenance and operation. The results show that: (1) Green bridges should adapt to the development requirements of green transportation in the new era from four aspects: whole-process green, all-factor protection, all-round durability and full-life economy. (2) Through the implementation of the technical points of green design, green construction, and green operation and maintenance of long-span bridges, the high-quality development of bridges in the new era can be promoted. The research results provide technical guidance for the green and low-carbon development of bridges in the new era, which is conducive to promoting the implementation of the concept of green development and ecological civilization in the transportation industry.