钢筋混凝土结构的工作寿命设计-针对氯盐污染环境  

Service life design of reinforced concrete structures exposed to chloride environment

作　　者：赵筠[1] 

机构地区：[1]挪威埃肯集团公司北京代表处,北京100027

出　　处：《混凝土》2004年第1期3-15,21,共14页Concrete

摘　　要：　混凝土耐久性现在正在向定量化发展,同时正在融入钢筋混凝土结构可靠度和工作寿命设计体系。通过将氯盐污染、氯离子渗透和导致钢筋锈蚀,转换为与时间相关的环境荷载与结构劣化进程,目前已形成具有实用价值、可操作的结构工作寿命设计体系。本文介绍了这方面最新进展,包括氯盐污染对结构的破坏作用,氯离子渗透数学模型与主要参数,以结构混凝土耐久性为基础的工作寿命、可靠度概念和理论计算方法,以及设计高耐久性钢筋混凝土结构的技术路线。Concrete durability is being quantified,and becoming part of reliability and service life design of reinforced concrete structures.On the basis of transferring the exposure chloride load,chloride penetration and resulted rebar corrosion into the time related environmental load and structure deterioration process,a practical system of service life design for structure has been established.In this paper,the latest development in this field has been reviewed,including the chloride's damaging effect on reinforced concrete structures,mathematical model for describing chloride ion penetration into concrete and the major parameters,the concept of service life & reliability of structure based on concrete durability,the theoretical method of calculation,designing durable reinforced concrete structures.

关 键 词：工作寿命 钢筋锈蚀 氯盐污染 氯离子 钢筋混凝二结构 高性能混凝土 HPC 结构可靠度 

分 类 号：TU375[建筑科学—结构工程]