摘要
考虑箍筋对于纵筋锈胀具有的抑制作用,在对钢筋锈胀作用与保护层混凝土锈伤劣化过程进行分析的同时,依据箍筋位置应变状态构建了混凝土锈胀模型。通过对箍筋的锈胀抑制作用进行了影响和验证分析表明,当箍筋间距小于50 mm时,箍筋的锈胀抑制作用非常显著。
Considering the restraining effect of stirrups on corroded longitudinal bar＇ expansion, while analyzing corroded bar＇s expansion and corrosion-induced cover deterioration, a RC corrosion-expansion model is established based on the strain state of hoops＇ position. By influencing, validating and analyzing the stirrups＇ restraining effect on the corrosion-induced expansion, a result is gained. The result shows if the hoop＇s space length is under 50 mm, the restraining effect on corrosion-induced expansion is very obvious.
出处
《武汉理工大学学报》
EI
CAS
CSCD
北大核心
2008年第9期80-83,共4页
Journal of Wuhan University of Technology
基金
国家自然科学基金(50538070)
关键词
混凝土结构
锈胀力
耐久性设计
箍筋影响
RC structure
corrosion-expansion force
durability design
effect of stirrups
