综述现代预应力技术在我国城市桥梁建设的创新发展

本文回顾和总结了21世纪前10年现代预应力技术在我国城市桥梁建设的创新发展。从设计理念、设计思想上,以及新技术、新材料、新工艺及其应用情况等方面来展示创新情况,并给出了4个典型工程案例。本文对现代预应力技术在城市桥梁建设的应用和发展作出了展望,积极倡议建造反映21世纪第二个10年科技水平的新型桥梁结构,推进我国向世界桥梁建设强国的目标迈进。

Summary about Innovation and Development of Modern Prestressed Technique in City Bridge Construction of Our Country

This paper reviewed and summarized the innovation development of modem prestressed technique of city bridge construction in the first decade of 21 st century in our country. The innovation was shown from the design con- cept, design thought, new technology, new material, new craft and its application situation. Then four typical engi- neering cases were presented. The development and application of modem prestressed technique in city bridge-construc- tion were forecasted. The new kind of bridge structure which could initiatively reflect the science and technology in the secend decade of 21 st century was proposed in positive.