摘要
桥梁的静挠度反映桥梁结构整体竖向刚度,是桥梁安全性评价的重要指标,也是桥梁荷载试验必须检查的项目.针对中小跨径桥梁,采用水准测量法和悬锤法分别对小跨径梁桥、拱桥进行了静挠度观测.通过实测数据,分析了两种测量方法的误差特性,总结了两种方法的优缺点,并提出了两种方法的选择依据,为桥梁荷载试验静挠度观测方案的选择提供参考.
The static deflection of the bridge reflects the overall vertical stiffness of the bridge structure. It is an important parameter of bridge safety evaluation. And it is an item that must be checked in bridge load test. For small and medium span bridges, the static deflection of small span girder bridge and arch bridge is measured by leveling method and suspension hammer method respectively. Through the measured data, the error characteristics of the two measurement methods were analyzed. The advantages and disadvantages of the two methods were summarized. The reason of choosing them was put forward. It provides reference for the selection of static deflection observation scheme of bridge load test.
作者
祝新念
李斌
ZHU Xinnian;LI Bin(School of Civil and Architectural Engineering, Hunan Institute of Science and Technology, Yueyang 414006, China)
出处
《湖南理工学院学报（自然科学版）》
CAS
2019年第1期55-59,共5页
Journal of Hunan Institute of Science and Technology(Natural Sciences)
基金
湖南省教育厅一般项目(14C0513)
关键词
荷载试验
静挠度
悬锤法
水准测量法
load test
static deflection
leveling method
suspension hammer method
