基于桥梁改造的新旧混凝土结构植筋加固粘接技术研究  

Research on Reinforcement Bonding Technology for New and Old Concrete Structures with Rebar Planting Based on Bridge Renovation

作　　者：项沛 Xiang Pei(Xi'an Railway Vocational and Technical Institute,Xi'an,Shaanxi 710600,China)

机构地区：[1]西安铁路职业技术学院,陕西西安710600

出　　处：《西安轨道交通职业教育研究》2024年第2期56-60,共5页Xi'an Rail Transit Vocational Education Research

摘　　要：随着桥梁承受荷载的增加与老化程度的加深,一些桥梁已成危桥,其使用安全性得不到保障,因此对其进行加固与改造是非常必要的。植筋技术是一种在混凝土结构中植入钢筋进行粘接加固的桥梁改造技术,在实际加固工程中较受欢迎。阐述了旧危桥梁新旧混凝土结构加固设计的基本要求与方法,植筋技术原理与加固步骤,探究了新旧混凝土结构植筋技术加固实践,并对该技术应用下新旧混凝土结合面的抗剪强度进行实验设计与测试,提出旧危桥梁加固改造措施和建议。With the increase in load and the deepening of aging in bridges,some bridges have become dangerous,and their safety cannot be guaranteed.Therefore,it is very necessary to reinforce and renovate these bridges.Rebar planting technology,which involves embedding steel bars into concrete structures for bonding reinforcement,is a popular method in actual reinforcement projects.This paper describes the basic requirements and methods for the reinforcement design of old and dangerous bridges'new and old concrete structures,the principles and steps of rebar planting technology,and explores the practical application of rebar planting technology for reinforcing new and old concrete structures.It also designs and tests the shear strength of the bonding surface between new and old concrete under this technology,proposing measures and suggestions for the reinforcement and renovation of old and dangerous bridges.

关 键 词：桥梁改造 新旧混凝土 植筋技术 抗剪强度 粘接加固 

分 类 号：TQ437*.1[化学工程]