大气腐蚀环境下钢构件抗力退化模型  

Deterioration Model for Resistance of Steel Member in Atmospheric Environment

作　　者：罗立胜 陈志华[1] 赵小龙[2] 张杨 LUO Lisheng;CHENZhihua;ZHAO Xiaolong;ZHANG Yang(Department of Civil Engineering,Tianjin University,Tianjin 300072, China;Department of Civil Engineering,Haitian University, Haikou 570228, China)

机构地区：[1]天津大学土木工程系,天津300072 [2]海南大学土木工程系,海口570228

出　　处：《结构工程师》2019年第2期52-58,共7页Structural Engineers

基　　金：海南省自科基金(518QN213);国家自然科学基金(51808176);海南大学科研启动基金项目(KYQD(ZR)1715)

摘　　要：处于腐蚀环境中的钢构件,不可避免地存在由于腐蚀引起的抗力退化,但目前缺乏相关研究,故研究腐蚀引起的钢构件抗力退化具有重要的价值。首先选择合适的抗力退化模型,然后总结分析了影响腐蚀钢构件抗力的因素,据此建立了钢材腐蚀深度计算公式,进而推导建立了常用截面带腐蚀参数几何特性计算公式,并结合已有研究得到的腐蚀钢材力学性能参数,建立了腐蚀钢构件抗力退化模型。Owing to the corrosion of atmosphere,resistance of steel member deteriorate inevitably. However, relevant study was insufficient, so research on deterioration model for resistance of steel member have great significance. Firstly, the appropriate modeling method to describe the resistance deteriorate with time was chosen ,then the influencing factors for resistance of corroded steel member were summarized and analyzed. The formula for corrosion depth of steel member was established. And formula with corrosion parameters for geometric characteristics of common were also derived. Furthermore, on the basis of mechanical property parameters of corrosive steel which was proposed by previous research, the deterioration model for resistance of steel member in atmospheric environment was built.

关 键 词：腐蚀环境 腐蚀等级 腐蚀深度 退化模型 

分 类 号：TU511.3[建筑科学—建筑技术科学]