无粘结预应力技术在圆形筒仓中的应用  

Unbonded prestressing technology in circular silos

作　　者：杨燕艳[1] 陈茜[1] 

机构地区：[1]中国建筑科学研究院,北京100013

出　　处：《河南城建学院学报》2012年第4期20-23,共4页Journal of Henan University of Urban Construction

摘　　要：采用无粘结预应力技术建造大型或特大型圆形筒仓,能解决普通混凝土结构钢筋用量较多的问题,而且较容易实现筒仓结构的承载力和抗裂要求,具有很好的经济效果。环形锚具的运用,可以不设置扶壁柱,节约锚具数量及锚下垫板。以工程实例介绍无粘结预应力混凝土圆形筒仓的设计思路。Using unbonded prestressing technology to build large or extra large round silo can solve the prob- lem of ordinary concrete structural steel consumption and more easily meets the need of carrying capacity of the silo structure and cracking requirements, which has a good economic effects. You cannot set the supporting pi- lasters using ring anchors in order to save anchor quantity and the plate under anchor. The author presents a case study design of bonded prestressed concrete circular silos.

关 键 词：无粘结预应力 圆形筒仓 算例分析 结构设计 环形锚具 

分 类 号：TU757.4[建筑科学—建筑技术科学]