摘要
在分段封闭箍筋小跨高比连梁配筋方案的基础上,利用无黏结技术提出一种改进方案,即在连梁端部h/4的连梁长度范围内,在受力纵筋外部套上塑料套管阻止钢筋与混凝土黏结,并用ANSYS 9.0分析了连梁的破坏形态、承载力、刚度、裂缝开展等性能.结果表明,改进方案与原方案相比具有更好的延性和耗能能力、较高的承载力,并且弯曲裂缝发展较充分.
Based on deep reinforced concrete coupling beam with closed stirrups section, using non-bonding technology, this paper presents an improved scheme, which among length of h/4 coupling beam＇s height, puts plastic sleeve around force longitudinal reinforcement to prevent adhesion between reinforcement and concrete, and using ANSYS 9.0 software analysizes failure modes, bearing capacities, stiffness, cracks and other capacities. Results show that deep reinforced concrete coupling beam with closed stirrups section has better ductility and energy dissipation capacity, higher capacity and more fully developed curve cracks compared with the original scheme.
出处
《河南大学学报（自然科学版）》
CAS
北大核心
2012年第3期321-325,共5页
Journal of Henan University:Natural Science
基金
河南省教育厅自然科学基金项目(2008A560001)
关键词
小跨高比连梁
改进方案
无黏结
仿真分析
deep reinforced concrete coupling beams
improved scheme
non bonding
simulation analysis
