超长混凝土结构不设缝技术研究  

RESEARCH ON TECHNIQUE OF ULTRA-LONG CONCRETE STRUCTURE WITHOUT JOINTS

作　　者：朱晗迓 

机构地区：[1]深圳市建筑设计研究总院第三设计院,广东深圳518031

出　　处：《低温建筑技术》2007年第5期59-61,共3页Low Temperature Architecture Technology

摘　　要：通过对温度作用和混凝土收缩作用进行定性分析,并借助通用有限元程序对其进行定量分析,提出了对于超长结构不设缝的分析方法。最后结合工程实例,分析了预应力对于提高混凝土抗裂,减少结构中伸缩缝的作用。工程实践表明取得了较好的效果。Because of temperature change and shrinkage of concrete, temperature joints have to be set for the ultra - long concrete structures. It destroys the integration of the buildings. By both qualitative and quantitative analysis with FEM, the technique of ultra - long concrete structure without joints was researched and the effect of prestress were also analyzed. At last, the practice was introduced, which showed good effect.

关 键 词：超长结构 温度应力 收缩应力 预应力技术 

分 类 号：TU37[建筑科学—结构工程]