摘要
为了研究和认识碳纤维加固钢筋混凝土梁板受弯性能,了解加固梁板的承载规律,提供必要的工程技术支持,对9片粘贴碳纤维加固公路桥梁用钢筋混凝土空心板进行了室内试验研究,在试验结果的基础上考察加固板承载过程中荷载及跨中挠度的变化规律,探讨碳纤维加固量、配筋率、锚固措施、加载历史和初始刚度等参数对加固空心板承载的影响,定性分析加固板承载能力和抗弯刚度的变化规律及其影响因素,形成碳纤维抗弯加固的基本认知并根据研究结论提出工程建议。
For the purpose of studying and understanding the flexural property of reinforced concrete beam or slab strengthened with carbon fiber reinforced polymer （CFRP）, and supporting the technical application in engineering, 9 hollow bridge-used slabs strengthened with CFRP are experimented and studied, and based on the experiment results, the flexural property of the strengthened hollow slabs are researched, the influence of some experimental parameters such as CFRP dosage, steel ratios etc. are studied, the orderliness and effect factors of flexural capability and stiffness are analyzed, some conclusion and suggestions for engineering are given as well in this paper.
出处
《公路工程》
2009年第1期30-34,共5页
Highway Engineering
基金
陕西省交通科技项目(01-19K)
关键词
空心板
碳纤维
加固
受弯性能
hollow slab
CFRP
strengthening
flexural property
