Research on Standardized Design of Assembled Pile-slab Road Struc- tures
IABSE Congress, Nanjing 2022: Bridges and Structures: Connection, Integration and HarmonisationIABSE Congress Reports（2022）
The assembled pile-slab road structure is a frame structure system composed of factory prefabri- cated plate girders and pipe piles, which has the advantages of fast construction, small footprint, and low environmental impact compared with the traditional earth roadbed. In order to develop a series of pile-slab road structures that can replace high-fill roadbeds, this paper studies the rea- sonable forms of pile-slab road structures suitable for replacing earth roadbeds in response to the needs of highway reconstruction and expansion and new construction. The reasonable form of pile-slab road structure travel lane plate is systematically analysed, and the reasonable upper and lower structure forms of pile-slab road structure are proposed. And for the need of assembly con- struction, the division method of the prefabricated sections of members is studied, and a series structure system of 6m~12m is established, which is suitable for application in road construction projects with tight land resources and has good comprehensive benefits. Finally, a standardized design method for pile-slab road structures is developed, which can provide guidance for the ap- plication of such assembled pile-slab road structures.
