SMA环向预应力结构原理研究  

RESEARCH ON STRUCTURAL PRINCIPLE OF RING PRE-STRESS BASED SMA

作　　者：韩西[1] 余志刚[1] 钟厉[1] 

机构地区：[1]重庆交通大学土木建筑学院,重庆400074

出　　处：《工业建筑》2007年第z1期325-327,436,共4页Industrial Construction

基　　金：重庆市自然科学基金资助项目(批准号:CSTC2005BB6116)

摘　　要：基于混凝土的轴向抗压强度是随另外两向应力的增加而增加的原理,以形状记忆合金的形状记忆效应为基础,提出一种新型的预应力结构——SMA环向预应力结构,并提出SMA环向预应力结构在应用推广之前必须解决的问题以及研究方向。According to the principle of axial compressive strength of concrete increases with the increase of other biaxial stresses,and on the basis of the shape memory effect,a new type pre-stress structure-the ring pre-stress structure of SMA was put forward,it is also pointed out in the paper that some problems should be solved before the ring pre-stress structure of shape memory alloy are popularized and applied,as well as the research direction concerned.

关 键 词：环向预应力 形状记忆合金 螺旋箍筋 双向应力 新结构 

分 类 号：TU378[建筑科学—结构工程]