Stability Analysis of Marine Scaffold Under Coupled Environmental Loads
Structural instability in marine scaffold systems often causes serious economic losses and casualties. In this study, a multi-parameter coupled model was established based on the MIDAS GEN finite element analysis platform to investigate the influence mechanisms of key parameters on the overall stabi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/13/6/1141 |
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| _version_ | 1850168124020621312 |
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| author | Pengkai Wang Gang Yao Yang Yang Haiyang Qin |
| author_facet | Pengkai Wang Gang Yao Yang Yang Haiyang Qin |
| author_sort | Pengkai Wang |
| collection | DOAJ |
| description | Structural instability in marine scaffold systems often causes serious economic losses and casualties. In this study, a multi-parameter coupled model was established based on the MIDAS GEN finite element analysis platform to investigate the influence mechanisms of key parameters on the overall stability of marine scaffold systems. To quantify the impact levels of the key parameters, a sensitivity analysis framework was established using an orthogonal experimental design approach and the corresponding compliance detection index and instability early-warning mechanisms were proposed. The results indicate that the overall stability of the scaffold system initially increases and then decreases with the rise in the adjustable base height. Variations in the cantilever length of the adjustable bracket within the range of 100–650 mm have no significant effect on the system’s overall stability. The absence of diagonal brace at the bottom, top, and facade ends significantly reduces structural stability. Increased vertical offset markedly degrades stability, whereas horizontal offset within ±5 mm has a negligible effect. The key parameters affecting the structural stability, ranked in descending order of significance, are as follows: absence of diagonal braces, verticality offset of the vertical bar, height of the adjustable base, horizontality offset of the horizontal bar, and cantilever length of the adjustable bracket. Finally, an early-warning assessment system for the scaffold structure was established. The research findings provide valuable guidance for optimizing marine scaffold design, enhancing construction safety, and formulating relevant standards and specifications. |
| format | Article |
| id | doaj-art-6b5a0aefe09f4daab3790de012d706c0 |
| institution | OA Journals |
| issn | 2077-1312 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-6b5a0aefe09f4daab3790de012d706c02025-08-20T02:21:03ZengMDPI AGJournal of Marine Science and Engineering2077-13122025-06-01136114110.3390/jmse13061141Stability Analysis of Marine Scaffold Under Coupled Environmental LoadsPengkai Wang0Gang Yao1Yang Yang2Haiyang Qin3School of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaSchool of Civil Engineering, Chongqing University, Chongqing 400045, ChinaStructural instability in marine scaffold systems often causes serious economic losses and casualties. In this study, a multi-parameter coupled model was established based on the MIDAS GEN finite element analysis platform to investigate the influence mechanisms of key parameters on the overall stability of marine scaffold systems. To quantify the impact levels of the key parameters, a sensitivity analysis framework was established using an orthogonal experimental design approach and the corresponding compliance detection index and instability early-warning mechanisms were proposed. The results indicate that the overall stability of the scaffold system initially increases and then decreases with the rise in the adjustable base height. Variations in the cantilever length of the adjustable bracket within the range of 100–650 mm have no significant effect on the system’s overall stability. The absence of diagonal brace at the bottom, top, and facade ends significantly reduces structural stability. Increased vertical offset markedly degrades stability, whereas horizontal offset within ±5 mm has a negligible effect. The key parameters affecting the structural stability, ranked in descending order of significance, are as follows: absence of diagonal braces, verticality offset of the vertical bar, height of the adjustable base, horizontality offset of the horizontal bar, and cantilever length of the adjustable bracket. Finally, an early-warning assessment system for the scaffold structure was established. The research findings provide valuable guidance for optimizing marine scaffold design, enhancing construction safety, and formulating relevant standards and specifications.https://www.mdpi.com/2077-1312/13/6/1141marine scaffoldmulti-parameter coupling modelsensitivity analysiscompliance indicatorsinstability warning mechanism |
| spellingShingle | Pengkai Wang Gang Yao Yang Yang Haiyang Qin Stability Analysis of Marine Scaffold Under Coupled Environmental Loads Journal of Marine Science and Engineering marine scaffold multi-parameter coupling model sensitivity analysis compliance indicators instability warning mechanism |
| title | Stability Analysis of Marine Scaffold Under Coupled Environmental Loads |
| title_full | Stability Analysis of Marine Scaffold Under Coupled Environmental Loads |
| title_fullStr | Stability Analysis of Marine Scaffold Under Coupled Environmental Loads |
| title_full_unstemmed | Stability Analysis of Marine Scaffold Under Coupled Environmental Loads |
| title_short | Stability Analysis of Marine Scaffold Under Coupled Environmental Loads |
| title_sort | stability analysis of marine scaffold under coupled environmental loads |
| topic | marine scaffold multi-parameter coupling model sensitivity analysis compliance indicators instability warning mechanism |
| url | https://www.mdpi.com/2077-1312/13/6/1141 |
| work_keys_str_mv | AT pengkaiwang stabilityanalysisofmarinescaffoldundercoupledenvironmentalloads AT gangyao stabilityanalysisofmarinescaffoldundercoupledenvironmentalloads AT yangyang stabilityanalysisofmarinescaffoldundercoupledenvironmentalloads AT haiyangqin stabilityanalysisofmarinescaffoldundercoupledenvironmentalloads |