水渣通廊构件锈蚀检测及抗拉性能分析  

CORROSION DETECTION AND TENSILE PERFORMANCE ANALYSIS OF WATER SLAG CORRIDOR COMPONENTS

作　　者：贾建彪 辛雷 魏妍婧 庄志有 姜国庆 JIA Jianbiao;XIN Lei;WEI Yanjing;ZHUANG Zhiyou;JIANG Guoqing(Inspection and Certification Co.,Ltd.MCC,Beijing 100044,China;School of Civil Engineering,Beijing Jiaotong University,Beijing 100044,China)

机构地区：[1]中冶检测认证有限公司,北京100044 [2]北京交通大学土木建筑工程学院,北京100044

出　　处：《低温建筑技术》2025年第3期65-69,共5页Low Temperature Architecture Technology

基　　金：国家自然科学基金项目(52478120)。

摘　　要：为评估某钢厂大跨钢桁架水渣通廊锈蚀构件的抗拉性能,明确锈蚀形貌对承载能力的影响,文中采用双目结构光系统对4根锈蚀构件进行锈蚀检测,并结合有限元模型反映其锈蚀形貌特征。检测结果显示,桁架端部斜腹杆锈蚀最严重,残余厚度仅为初始的56.17%,桁架中部腹杆残余厚度在初始厚度的80.33%~86.17%。通过非线性有限元分析,发现考虑锈蚀形貌特征的局部精细化杆件有限元模型塑性变形能力显著低于均匀锈蚀假设时的计算结果,中部竖腹杆承载力下降时,杆件总变形较均匀锈蚀模型减少17.3%。研究可为工业厂房锈蚀构件的精准检测、抗拉性能评估及维护策略制定提供理论与技术参考。To evaluate the tensile performance of corroded components in a large-span steel truss water slag corridor of a steel plant and clarify the impact of corrosion morphology on load-bearing capacity,a binocular structured light system was used to inspect four corroded components,and a finite element model was employed to reflect their corrosion characteristics.The inspection results indicate that the diagonal web members at the truss ends exhibited the most severe corrosion,with a residual thickness of only 56.17%of the initial value,while the residual thickness of the web members in the truss midsection ranged from 80.33%to 86.17%of the initial thickness.Nonlinear finite element analysis revealed that the plastic deformation capacity of the localized refined rod model,which considers corrosion morphology characteristics,was significantly lower than that of the uniform corrosion assumption.When the load-bearing capacity of the central vertical web member decreased,the total deformation of the component was reduced by 17.3%compared to the uniform corrosion model.These findings provide theoretical and technical references for the precise detection,tensile performance evaluation,and maintenance strategy formulation of corroded components in industrial buildings.

关 键 词：双目结构光 锈蚀检测 锈蚀形貌 局部精细化模型 

分 类 号：TU392[建筑科学—结构工程]