摘要
为了修复装配式简支空心板梁桥的铰缝病害,采用体外横向预应力对其进行加固,通过有限元模拟计算以及静载试验对加固效果进行了分析评估,结果表明:体外横向预应力有效改善了空心板梁桥的荷载横向分布,增强了板间的横向联系,铰缝病害得到修复,可为类似桥梁的维修、加固提供借鉴。
In order to fix the hinge joints problems of fabricated simply-supported hollow-slab bridge, external transverse prestress was applied for reinforcement. The reinforcement effect was assessed by finite element numerical simulation and static load test. The results indicate that external transverse prestress effectively improves the transverse distribution of load on hollowslab bridge, and the diseases in hinge joints are avoided, which provides reference for similar bridge projects.
出处
《筑路机械与施工机械化》
2014年第9期79-82,85,共5页
Road Machinery & Construction Mechanization
关键词
空心板梁桥
体外横向预应力
加固效果
有限元
hollow-slab bridge
external transverse prestress
reinforcement effect
finite element
