摘要
对目前聚丙烯纤维混凝土力学特性和作用机理等方面的研究成果进行归纳总结,肯定了聚丙烯纤维混凝土的增强机理,将其浇筑于异形柱框架柱脚及节点核心区等抗震薄弱部位并进行对比试验分析,研究表明应用聚丙烯纤维混凝土可以显著改善异形柱结构的破坏形态,并能有效提高异形柱结构的整体承载能力。
The research results at present with mechanical properties and action mechanism etc.of polypropylene fiber concrete were summa-rized,the enhancement mechanism of this kind concrete was affirmed.The polypropylene fiber concrete was poured into the weak part as columns bottom and joints core of frame with specially shaped columns,and the frame was experimented under low frequency cyclic loading,also com-pared with the frame poured ordinary conrete.It is shown that pouring the polypropylene fiber concrete into the weak part of the frame could im-prove the damage form of the structure with specially shaped columns,and enhance the whole bearing capacity of the structure.
出处
《混凝土》
CAS
CSCD
北大核心
2010年第4期79-82,共4页
Concrete
基金
国家自然科学基金项目(50878141)
关键词
聚丙烯纤维
混凝土
力学特性
异形柱
polypropylene fiber
concrete
mechanical properties
specially shaped column
