文档介绍:桥梁加固空心板底粘贴碳纤维布
: the article introduces the carbon fiber cloth in the application of bridge reinforcement. Through engineering examples, confirmed that the carbon fiber cloth in the practical application of bridge reinforcement and the feasibility of the project. Carbon fiber cloth is a kind of good performance of the new type composite materials. USES stickup carbon fiber strengthened repair reinforced concrete structure, brick masonry structure, have high strength, not increase structure self-respect, even tension, no distortion; Excellent durability and corrosive; Construction site not wet homework, construction is convenient; Period than traditional reinforcement method greatly shorten and many other advantages. Thus, the structure reinforcement renovation field, the advanced reinforcement technique got rapid development.
Keywords: carbon fiber cloth; Concrete hollow slab; Reinforcement engineering
碳纤维布已在混凝土构件、 木结构等加固工程中得到广泛应 用,碳纤维除了具有抗拉强度高,耐酸碱,易粘贴、不增加结构
自重及截面尺寸,施工质量易于保证等优点以外 , 由于碳纤维布
可弯曲缠绕成型,在桥梁加固空心板底粘贴碳纤维布效果更佳。
质量检验所有进场材料, 包括碳纤维片材和胶结材料, 应符
合质量标准, 并具有产品出厂合格证, 其各种性能指标及技术参
数均应符合本工程加固补强设计要求, 适合现场温度、 湿度条件。
这是保证工程质量的前提。 各工序的施工质量, 由施工员负责指
导、监督。每一工序完成后项目部进行自检,确认合格并提请监
理检查认可后才能进行下道工序,否则必须返修至合格为止。
卸荷由于碳纤维布弹模与钢筋相近, 故加固前应对所加固的
构件尽可能卸荷,来减少混凝土的变形,在最大荷载作用下,同
时进入承载能力极限状况,空心板上无任何荷载。
施工工艺
搭设工作平台该桥第六、七、八、九孔距离地面较高,采用
脚手架制作稳定骨架,在其上面铺设架板,四周设安全防护网,
以便确保施工安全。
定位放线 首先认真阅读设计施工