埋入式SMA丝聚合物梁自修复能力试验研究  

Experimental study on self-repair capability of SMA wires polymer beam

作　　者：孙丽[1] 周建鸿[1] 高倩倩[1] 

机构地区：[1]沈阳建筑大学土木工程学院,辽宁沈阳110168

出　　处：《福州大学学报（自然科学版）》2013年第4期439-443,共5页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(51178277);教育部新世纪优秀人才支持计划资助项目(NCET-12-1013);辽宁省教育厅优秀人才计划资助项目(LR2012018);沈阳科技局高新技术产业发展与科技攻关计划资助项目(F11-163-9-00)

摘　　要：为比较埋入式SMA聚合物梁中Ni-Ti合金丝对梁承载能力的影响以及Ni-Ti合金丝的无粘结长度对梁自修能力的影响,设计了两种类型的聚合物梁,且对两种类型的梁中三种不同无粘结长度的梁进行了试验研究.试验结果表明,聚合物梁中埋入Ni-Ti合金丝后,随着无粘结长度的增加,梁的承载力有一定提高;聚合物梁中SMA丝在足够有效的无粘结长度下,裂缝可以实现自修,且无粘结长度越长,裂缝修复效果越好.In order to compare the influence of Ni-Ti alloy wire on the bearing capacity of the embedded SMA polymer beam and the influence of unbounded length on the beam self-repair capability,two types of polymer beams are designed.And two types of beams with three different unbounded lengths are studied.The results show that the bearing capacity of the beam has been improved to some extent after it was embedded in the Ni-Ti alloy wire with increasing of the unbounded length;when SMA wires in the polymer beams has enough effective unbounded length,the cracks can achieve self-repair,and the longer of the unbounded length,the better of the crack repair situation.

关 键 词：梁 无粘结 聚合物 自修复 

分 类 号：TU375.1[建筑科学—结构工程]