Abstract:On the basis of summarizing the advantages and disadvantages of existing prestressing concrete technology, the concepts of pre-bending double prestressing composite beam, pre-bending prestressing steel reinforcement concrete, pre-bending non-bonding prestressing concrete, and cross-tensioning prestressing concrete technology are proposed. Among them, the cross-tensioned prestressed concrete technology combines good usability, economy of materials and simplicity of construction, and has good technical and economic benefits and prospects for popularization and application.