本文从发展、分类、形式、理论、工艺、科研等几个方面介绍无粘结体外配束后张法预应力混凝土的发展与现状。无粘结体外配束后张法预应力混凝土我国只在加固旧桥中应用过,在全国范围内这种新工艺尚很少采用,本文借国外资料及本人指导研究生做过的试验做一综合性的报导。 This paper introduces the development and status quo of post-tensioned post-tensioned prestressed concrete with unbonded body with several aspects of development, classification, form, theory, technology and research. Unbonded in vitro with post-tensioned prestressed concrete China only in the reinforcement of the old bridge used in this nationwide new technology is still rarely used, this article by foreign materials and I did a pilot to do a comprehensive test Sexual reports.