NiTi形状记忆合金环向预应力混凝土结构强化现象的研究  

Study on the strengthening of NiTi SMA ring pre-stress concrete structure

作　　者：钟厉[1] 邓兰兰[1] 韩西[1] 余志刚[1] 杨明理[1] 

机构地区：[1]重庆交通大学,重庆400074

出　　处：《混凝土》2008年第1期29-31,共3页Concrete

基　　金：重庆市自然科学基金(CSTC2005BB6116)

摘　　要：采用NYL-80型压力试验机进行抗压试验,用YJ-26型静态电阻应变仪测量各级荷载下对应的横竖向应变,同时观察和记录试件的破坏现象,研究了NiTi形状记忆合金环向预应力混凝土结构的强化现象。结果表明SMA环向预应力混凝土柱与同等条件的普通混凝土柱相比,其极限荷载和抗裂性能都有较大的提高。The strengthening of NiTi SMA ring pre-stress concrete structure was mainly studied by testing compressive strength, measuring axial and lateral strain,as well as analyzing its broken phenomena.It shows that NiTi SMA ring pre-stress concrete columns are improved both in crack load and ultimate load as compared with plain concrete columns in the same condition.

关 键 词：形状记忆合金 形状记忆效应 镍钛合金 环向预应力 混凝土 强化 

分 类 号：TU528.01[建筑科学—建筑技术科学]