摘要
为了更好地了解波纹钢加固混凝土管涵的力学性能,采用钢筋混凝土管作为既有管涵,通过试验确定了5个试件的试验承载力,了解了波纹钢管的作用,分析了偏心加固对加固管承载力的影响,提出了一种估算偏心加固管承载力的方法。研究结果表明:加固后的管涵承载能力主要取决于混凝土管和填充混凝土,波纹钢管发挥的作用很小;偏心加固管的承载力低于同心加固管;改进的“滑移理论”较为合理,文中提出的偏心加固管承载力分析方法的理论结果与试验结果的误差小于22.3%。
In order to better understand the performance of the concrete pipe culvert reinforced by corrugated steel pipes,experiments were conducted on existing reinforced concrete pipes to determine the test-loading capacity of five specimens and understand the role of corrugated steel pipes.The influence of eccentric reinforcement on the loading capacity of the slip-lined pipe was explored and concluded with an approach to estimate the loading capacity of the reinforced pipes.The results show that the loading capacity of the concrete pipe culvert reinforced by corrugated steel pipes mainly depends on the concrete pipes and the grout,and corrugated steel pipes plays a very small role.The loading capacity of an eccentric reinforced pipe was lower than that of a concentric reinforced pipe.The improved fully slip approach is reasonable,and the errors between the theoretical results calculated with the approach for analyzing a vertical eccentric reinforced pipe proposed in this paper and experimental results is less than 22.3%.
作者
李百建
朱良生
李勇
符锌砂
葛婷
LI Baijian;ZHU Liangsheng;LI Yong;FU Xinsha;GE Ting(School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,Guangdong,China;Department of Civil Engineering,Tianhe College of Guangdong Polytechnic Normal University,Guangzhou 510540,Guangdong,China;School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,Jiangsu,China)
出处
《华南理工大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2020年第2期58-68,共11页
Journal of South China University of Technology(Natural Science Edition)
基金
国家自然科学基金资助项目(51808370,51778242)
湖南省交通运输厅科技进步与创新计划项目(201539)
2017年广州市交通投资集团项目~~
关键词
管涵加固
内衬法
混凝土管涵
力学机理
室内试验
pipe culvert reinforcement
slip-lining
concrete pipe culvert
mechanical mechanism
laboratory tests
