以预应力技术促进结构混凝土可持续发展  

Using prestressed technology to promote constructive concrete sustainable development

作　　者：屠月辉[1] 朱龙[1] 

机构地区：[1]天津钢铁有限公司,天津300301

出　　处：《金属制品》2009年第1期1-3,共3页Metal Products

摘　　要：介绍我国混凝土及预应力技术的现状，混凝土年用量为24亿-30亿m^3，混凝土及预应力混凝土结构约占全部工程结构的90％；采用预应力混凝土技术，使用1860MPa甚至2100MPa级别的钢绞线，受力钢筋用量可节约3／4，混凝土用量可节省30％～50％；为使结构混凝土技术及使用可持续发展，需提供优质系列预应力钢材；讨论我国预应力技术的发展方向。To introduce the present situation of concrete and prestressed technology in China. Concrete annual consumption is 2.4 - 3.0 billion stere. Concrete and prestressed concrete structure almost occupy 90% of all engineering construction. The consumption of stressed steel reinforcement can be saved 3/4, concrete can be saved 30% - 50% by adopting prestressed concrete technology and using 1 860 MPa even 2 100 MPa grade stranded wire. The good quality series prestressed steel should be supplied for the sustainable development of structure concrete technology and its usage. The development orientation of domestic prestressed technology is discussed.

关 键 词：预应力技术 预应力钢材 预应力钢绞线 预应力构件 结构混凝土 

分 类 号：TU528.571[建筑科学—建筑技术科学]