结构工程师2023，Vol.39Issue(6)：214-228,15.
铁基形状记忆合金加固钢梁和混凝土梁的加固机理与研究进展
Strengthening Mechanism and Research Progress on Strengthening Steel Beam and RC Beam with Fe-based Shape Memory Alloys
摘要
Abstract
In civil engineering,steel or concrete beams need to be reinforced to increase its load-bearing capacity and service life due to damage,aging and bearing capacity degradation under service conditions.At present,the application of Fe-based shape memory alloys(Fe-SMA)to reinforce the structure has been proved to be an efficient and reliable method.This article reviews the shape memory properties,activation recovery properties and basic mechanical properties of Fe-SMA.And the principle of thermal excitation for structural reinforcement using Fe-SMA is described.On this basis,the connection methods between Fe-SMA members and the reinforced structure are reviewed from the aspects of reinforcing steel beams and concrete beams,and the existing research and applications are classified,analyzed and summarized according to the needs and purposes of reinforcement.Finally,in view of the shortcomings of the current research and application,this paper puts forward the perspectives that need to be researched,in order to promote the reasonable application of Fe-SMA in the field of civil engineering.关键词
铁基形状记忆合金/梁结构加固/材料性能/结构性能提升Key words
Fe-based shape memory alloys/reinforcement of beam structures/material performance/improvement of mechanical performance引用本文复制引用
强旭红,武亚鹏,姜旭,罗永峰..铁基形状记忆合金加固钢梁和混凝土梁的加固机理与研究进展[J].结构工程师,2023,39(6):214-228,15.基金项目
国家自然科学基金资助项目(52278206,52278207),国家重点研发计划重点专项(2020YFD1100400、2017YFB0304701),中央高校基本科研业务费(22120210577) （52278206,52278207）
