The effect of the stiffener pitch on the stress-strain state of the crane beam elements
Introduction. A study of the stress-strain state of split crane beams was carried out, the features of loading from the crane rollers and the effect on the stress-strain state of crane beam elements in terms of formation of fatigue cracks in the upper compressed zone of the wall were highlighted. Th...
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Moscow State University of Civil Engineering (MGSU)
2024-06-01
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| Online Access: | https://www.vestnikmgsu.ru/jour/article/view/288 |
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| author | V. S. Markeev V. V. Zverev I. A. Zajcev |
| author_facet | V. S. Markeev V. V. Zverev I. A. Zajcev |
| author_sort | V. S. Markeev |
| collection | DOAJ |
| description | Introduction. A study of the stress-strain state of split crane beams was carried out, the features of loading from the crane rollers and the effect on the stress-strain state of crane beam elements in terms of formation of fatigue cracks in the upper compressed zone of the wall were highlighted. The main objective of the study is to search for the features of the crane beam construction of cranes with heavy operation mode, to search for methods of modernization of design features in order to prevent/minimize the development of fatigue cracks.Materials and methods. The research is based on long-term experience in the operation of crane beams of heavy and especially heavy operating modes of cranes, data from conclusions based on the results of surveys of building structures, conclusions on industrial safety of hazardous production facilities, scientific publications. Based on the design schemes of existing and actually operated crane beams of the metallurgical enterprise, a computational model of the structure under study was developed in the computational complex of strength analysis of structures by the method of finite element analysis.Results. The stress-strain state of crane beam structures of cranes with heavy and especially heavy operating modes is analyzed, the influence of the position of the crane roller on the condition of various parts of the crane beam structure: walls, belts and ribs is studied. The regularity in the work of structural elements is derived when the frequency of the transverse ribs of crane beams changes. Assumptions are made to solve the strength problem of the formation of unacceptable fatigue cracks in the upper compressed zone of the crane beam wall.Conclusions. Based on the results of numerical analysis of the stress-strain state of the crane beam construction model, data are presented indicating the previously unknown peculiarities of crane beams operation. A hypothesis is given for solving the strength problem of the formation of unacceptable fatigue cracks in the upper compressed zone of the crane beam wall. |
| format | Article |
| id | doaj-art-5654b6cc969e4c3bad462c09656767d8 |
| institution | Kabale University |
| issn | 1997-0935 2304-6600 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Moscow State University of Civil Engineering (MGSU) |
| record_format | Article |
| series | Vestnik MGSU |
| spelling | doaj-art-5654b6cc969e4c3bad462c09656767d82025-01-09T08:22:50ZengMoscow State University of Civil Engineering (MGSU)Vestnik MGSU1997-09352304-66002024-06-0119687889110.22227/1997-0935.2024.6.878-891128The effect of the stiffener pitch on the stress-strain state of the crane beam elementsV. S. Markeev0V. V. Zverev1I. A. Zajcev2Lipetsk State Technical University (LGTU)Lipetsk State Technical University (LGTU)Lipetsk State Technical University (LGTU)Introduction. A study of the stress-strain state of split crane beams was carried out, the features of loading from the crane rollers and the effect on the stress-strain state of crane beam elements in terms of formation of fatigue cracks in the upper compressed zone of the wall were highlighted. The main objective of the study is to search for the features of the crane beam construction of cranes with heavy operation mode, to search for methods of modernization of design features in order to prevent/minimize the development of fatigue cracks.Materials and methods. The research is based on long-term experience in the operation of crane beams of heavy and especially heavy operating modes of cranes, data from conclusions based on the results of surveys of building structures, conclusions on industrial safety of hazardous production facilities, scientific publications. Based on the design schemes of existing and actually operated crane beams of the metallurgical enterprise, a computational model of the structure under study was developed in the computational complex of strength analysis of structures by the method of finite element analysis.Results. The stress-strain state of crane beam structures of cranes with heavy and especially heavy operating modes is analyzed, the influence of the position of the crane roller on the condition of various parts of the crane beam structure: walls, belts and ribs is studied. The regularity in the work of structural elements is derived when the frequency of the transverse ribs of crane beams changes. Assumptions are made to solve the strength problem of the formation of unacceptable fatigue cracks in the upper compressed zone of the crane beam wall.Conclusions. Based on the results of numerical analysis of the stress-strain state of the crane beam construction model, data are presented indicating the previously unknown peculiarities of crane beams operation. A hypothesis is given for solving the strength problem of the formation of unacceptable fatigue cracks in the upper compressed zone of the crane beam wall.https://www.vestnikmgsu.ru/jour/article/view/288crane beamheavy crane operation modestress-strain statefatigue crackupper compressed zone of the wallpitch of transverse ribsreinforcement of crane beams |
| spellingShingle | V. S. Markeev V. V. Zverev I. A. Zajcev The effect of the stiffener pitch on the stress-strain state of the crane beam elements Vestnik MGSU crane beam heavy crane operation mode stress-strain state fatigue crack upper compressed zone of the wall pitch of transverse ribs reinforcement of crane beams |
| title | The effect of the stiffener pitch on the stress-strain state of the crane beam elements |
| title_full | The effect of the stiffener pitch on the stress-strain state of the crane beam elements |
| title_fullStr | The effect of the stiffener pitch on the stress-strain state of the crane beam elements |
| title_full_unstemmed | The effect of the stiffener pitch on the stress-strain state of the crane beam elements |
| title_short | The effect of the stiffener pitch on the stress-strain state of the crane beam elements |
| title_sort | effect of the stiffener pitch on the stress strain state of the crane beam elements |
| topic | crane beam heavy crane operation mode stress-strain state fatigue crack upper compressed zone of the wall pitch of transverse ribs reinforcement of crane beams |
| url | https://www.vestnikmgsu.ru/jour/article/view/288 |
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