登录
注册
E-alert
登录
注册
E-alert
A STUDY ON APPLICATION OF STRENGTHENING OF FRAME BEAM WITH CARBON FIBER REINFORCED POLYMER AFTER FIRE
-
摘要: 对火灾后框架梁的加固方法进行可行性分析和技术经济量化分析，科学地选择加固方法碳纤维布加固框架梁。阐述碳纤维布加固框架梁的设计与计算、薄型防火隔热、施工工艺等。通过对框架梁加固前、后分别进行现场静载试验，检测分析对比框架梁的承载力、裂缝宽度、挠度等力学性能和变形性能的变化。结果表明:碳纤维布加固框架梁有效地提高了梁的抗弯和抗剪承载能力，延缓了裂缝的出现与发展，减小了裂缝宽度和挠度，提高了安全性、适用性、耐久性。Abstract: Based on the feasibility analysis and quantitative analysis of strengthening methods of frame beam after fire,the paper suggests a scientific strengthening method,i.e.,the carbon fiber reinforced polymer(CFRP).The paper then expounds the design and calculation of the strengthening with CFRP,the fire prevention and heat insulation with thin sheet,and the construction technology,etc.It is made a on-the-site static load test of frame beam before and after reinforcement,it is also examined and analysed the mechanical properties and deformation performance of the frame beam by comparing the bearing capacity,crack width and deflection.The research results show that frame beam with CFRP can improve the flexural capacity and shear-carrying capacity,delay the time of crack and minimize the crack width and deflection,which can ensure the security,applicability and durability.
-
[2] 肖德后,徐明,陈忠范.碳纤维加固混凝土结构耐火问题的研究现状[J].工业建筑,2008,38(10):94-98. 唐岱新,王凤来.土木工程结构检测鉴定与加固改造新进展及工程实例[M].北京: 中国建材工业出版社,2006. [3] 刘桦,王子全.建筑物补强的技术经济方法[J].工业建筑,2007,37(4):88-90. [4] 王文炜,赵国藩,黄承逵,等.碳纤维布加固已承受荷载的钢筋混凝土梁抗弯性能试验研究及抗弯承载力计算[J].工程力学,2004(4): 172-178. [5] 刘征.砖混办公楼改造加固设计[J].建筑技术,2009(1）:50 －52. [6] 吴波,王军丽.碳纤维布加固钢筋混凝土板的耐火性能试验研究[J].土木工程学报,2007(6):6-41. [7] 胡克旭,何桂生.碳纤维加固钢筋混凝土梁的防火试验研究[J].同济大学学报:自然科学版,2006(11): 1451-1456. [8] CECS 146∶ 2003 碳纤维片材加固混凝土结构技术规范[S]. [9] GB 503672006 混凝土结构加固设计规范[S]. 期刊类型引用(2)
1. 闫维明, 王瑾, 许维炳, 彭凌云, 张奎. 连接刚度对调频型颗粒阻尼器减震控制效果影响研究. 振动与冲击. 2018(03): 1-7 . 
百度学术2. 王瑾, 闫维明, 许维炳, 彭凌云, 张奎. 微细耗能颗粒对调频型颗粒阻尼器减震效果影响研究. 振动与冲击. 2017(13): 60-66+102 . 百度学术其他类型引用(0)
-
点击查看大图
计量
- 文章访问数: 103
- HTML全文浏览量: 5
- PDF下载量: 63
- 被引次数: 2
下载:
