自密实混凝土在大直径异形钢管结构中的设计与应用  

Design and Application of Self-compacting Concrete in Large Diameter Special Section Steel Tubular Structure

作　　者：潘伯林 李俊[2] 蔡可键[2] 刘铁 温小栋[2] 

机构地区：[1]宁波东部新城开发投资有限公司,浙江宁波315040 [2]宁波工程学院建筑工程学院,浙江宁波315016

出　　处：《施工技术》2015年第3期10-14,共5页Construction Technology

基　　金：宁波市建设科技项目(甬建发[2012]237号)

摘　　要：宁波中银大厦大直径异形钢管结构采用自密实混凝土,在自密实混凝土原材料选择、配合比设计、混凝土施工过程中的质量控制等方面进行了试验研究。工程实践证明,自密实混凝土能够很好地解决大直径异形钢管结构混凝土施工中钢管和混凝土脱空的技术难题。Self-compacting concrete is adopted in large diameter special section steel tubular structures of Ningbo Zhongyin Bulding. The selection of self-compacting concrete raw materials is researched and tested, as well as the design of mix proportion and the quality control in the process of concrete construction. The project example proves that the self-compacting concrete can solve technical problems of concrete and steel pipe in large diameter special section steel tubular structure.

关 键 词：高层建筑 混凝土 自密实混凝土 钢管 配合比 

分 类 号：TU755[建筑科学—建筑技术科学]