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体外预应力技术已经在国内外桥梁工程建设中得到广泛运用。为了保证预应力体外索的施工质量,国内外学者通过不断实践研究.总结出一套较为实用的体外预应力施工技术。本文笔者主要介绍了国内外桥梁工程中预应力体外索的施工关键技术,主要包括预应力体外索的施工技术,预应力体外索的二次更换技术以及国内外常用的预应力体外索的防护技术。
External prestressing technology has been widely used in the bridge construction at home and abroad. In order to ensure the construction quality of prestressed extracorporeal cable, domestic and foreign scholars through practice and research, summed up a set of more practical external prestressed construction technology. In this paper, the author mainly introduces the construction of key technologies of prestressed extra-corporeal cable in the bridge engineering at home and abroad, including the construction technology of prestressed extra-corporeal cable, the second replacement of prestressed extra-corporeal cable and the protection technology of prestressed extra-corporeal cable at home and abroad .