摘要
我国混凝土结构用钢筋种类繁多 ,强度偏低 ,部分钢筋延性太差 ,已难以适应混凝土结构发展的需要。基于混凝土结构对受力钢筋的要求 ,从强度、延性、质量稳定性、锚固性能、施工适应性及经济等方面对现有钢筋进行了分析比较。根据我国国情及建筑市场的变化 ,提出了大力推广强度为 4 0 0MPa的Ⅲ级钢筋 ,发展小直径Ⅱ ,Ⅲ级钢筋 ,优化或淘汰冷加工钢筋 ,发展与钢筋有关的配套技术等建议。可供建筑设计部门及治金企业参考。
On the basis of the main requirements of load bearing reinforcements in concrete structures,an analytical comparsion for strength,ductility,stability of quality,anchoring performance,suitability of construction and economics etc. between existing steel bars has been made.According to the national conditions of our country and the great changes of building construction market at present,some proposals concerning with the popularization of grade Ⅲ steel bar with strength of 400 MPa,developing the small diameter grade Ⅱ,Ⅲ steel bars,optimizing or eliminating the cold drawn steel bars and to make further advances on forming a complete set technology for reinforcement of steel bars etc.are also presented.
出处
《建筑结构》
CSCD
北大核心
2000年第7期52-54,共3页
Building Structure
关键词
混凝土结构
钢筋
选择
concrete structure
steel bar
selection