Reinforcement solution of damaged load-bearing frame structure in a coal power plant for additional loads

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-03-28 DOI:10.24425/ace.2024.148903

S. Skibicki, Tomasz Wróblewski, Wiesław Paczkowski, Krzysztof Kozieł, Marcin Matyl, Maciej Wisniowski

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Abstract

Significant subsoil deformation and additional loads from the new denitrification unit caused a major problem with the load-bearing capacity of the coal power plant. It was necessary to perform an advanced assessment of the technical condition of the structure. Laser scanning (LiDAR) were used to obtain detailed data upon structure. Based on the analysis of the point cloud, the location of the column axes was determined, which allowed to determine the global and local displacements of the structure. Spatial models of the structure were created. Non-linear analyses of the structure were carried out using two types of models: 1) global beam-shell 3D models of the boiler room used to calculate the magnitude of internal forces and deformations of the structure; 2) local beam-shell detailed models of selected structural elements. Based on the results of the calculations, necessary reinforcement of the structure was designed and successfully implemented. Advanced analysis of the structure using laser scanning, subsoil monitoring and complex numerical models made it possible to perform only local reinforcements of the entire complex structure.

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煤电厂受损承重框架结构承受额外荷载的加固方案

严重的底土变形和新建脱硝装置产生的额外荷载对煤电厂的承载能力造成了严重影响。有必要对结构的技术状况进行一次高级评估。通过激光扫描（LiDAR）获得了结构的详细数据。根据对点云的分析，确定了柱轴的位置，从而确定了结构的整体和局部位移。创建了结构的空间模型。使用两种模型对结构进行非线性分析：1) 用于计算结构内力和变形大小的锅炉房整体梁壳三维模型；2) 选定结构元素的局部梁壳详细模型。根据计算结果，设计并成功实施了必要的结构加固。利用激光扫描、底土监测和复杂的数字模型对结构进行了先进的分析，使整个复杂结构的局部加固成为可能。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.