Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil
The straight part of the corrugated steel plate (CSP) pipe-arch structure in soil may cause local buckling instability due to insufficient load-bearing capacity. Recently, composite CSP pipe-arch has been widely utilized to enhance structural stability, and their stability needs to be thoroughly inv...
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MDPI AG
2024-10-01
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| author | Chengwen Che Pingping Hu Feng Shi Pengsen Xu Junxiu Liu Kai Li |
| author_facet | Chengwen Che Pingping Hu Feng Shi Pengsen Xu Junxiu Liu Kai Li |
| author_sort | Chengwen Che |
| collection | DOAJ |
| description | The straight part of the corrugated steel plate (CSP) pipe-arch structure in soil may cause local buckling instability due to insufficient load-bearing capacity. Recently, composite CSP pipe-arch has been widely utilized to enhance structural stability, and their stability needs to be thoroughly investigated. This paper studies the local buckling stability problem of the straight part of composite CSP pipe-arch in soil by simplifying the soil support and introducing the inter-layer bonding effect. Based on elastic stability theory, a theoretical mechanical model of composite CSP pipe-arch was proposed. The Rayleigh–Ritz method and the semi-combined composite structure stiffness approximation were used to derive the critical buckling conditions for the straight part of the composite CSP pipe-arch. Through numerical calculation and influencing factors analysis, it is concluded that the critical buckling load of the straight part of the composite CSP pipe-arch structure is affected by the elastic modulus, thickness, Poisson’s ratio, rotational restraint stiffness and side length of the straight part of the material. In particular, it is found that as the inter-layer bonding coefficient increases, the critical buckling load is improved, while the critical buckling wave number is mainly influenced by the width of the straight part, elastic modulus, and inter-layer bonding coefficient. Additionally, we discussed the coupling effect of several key parameters on the stability of the structure. The results of this study offer theoretical foundations and guidance for the application of composite CSP pipe-arch in soil engineering, such as culverts, tunnels, and pipeline transportation. |
| format | Article |
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| institution | OA Journals |
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| language | English |
| publishDate | 2024-10-01 |
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| spelling | doaj-art-b07ee308efa4483d949cc92ab7bedcec2025-08-20T02:11:09ZengMDPI AGBuildings2075-53092024-10-011410329010.3390/buildings14103290Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in SoilChengwen Che0Pingping Hu1Feng Shi2Pengsen Xu3Junxiu Liu4Kai Li5China First Highway Engineering Co., Ltd., Beijing 100024, ChinaChina First Highway Engineering Co., Ltd., Beijing 100024, ChinaCollege of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaCollege of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaCollege of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaCollege of Civil Engineering, Anhui Jianzhu University, Hefei 230601, ChinaThe straight part of the corrugated steel plate (CSP) pipe-arch structure in soil may cause local buckling instability due to insufficient load-bearing capacity. Recently, composite CSP pipe-arch has been widely utilized to enhance structural stability, and their stability needs to be thoroughly investigated. This paper studies the local buckling stability problem of the straight part of composite CSP pipe-arch in soil by simplifying the soil support and introducing the inter-layer bonding effect. Based on elastic stability theory, a theoretical mechanical model of composite CSP pipe-arch was proposed. The Rayleigh–Ritz method and the semi-combined composite structure stiffness approximation were used to derive the critical buckling conditions for the straight part of the composite CSP pipe-arch. Through numerical calculation and influencing factors analysis, it is concluded that the critical buckling load of the straight part of the composite CSP pipe-arch structure is affected by the elastic modulus, thickness, Poisson’s ratio, rotational restraint stiffness and side length of the straight part of the material. In particular, it is found that as the inter-layer bonding coefficient increases, the critical buckling load is improved, while the critical buckling wave number is mainly influenced by the width of the straight part, elastic modulus, and inter-layer bonding coefficient. Additionally, we discussed the coupling effect of several key parameters on the stability of the structure. The results of this study offer theoretical foundations and guidance for the application of composite CSP pipe-arch in soil engineering, such as culverts, tunnels, and pipeline transportation.https://www.mdpi.com/2075-5309/14/10/3290corrugated steel plate pipe-archcomposite structureinter-layer bondinglocal buckling stabilitycritical buckling load |
| spellingShingle | Chengwen Che Pingping Hu Feng Shi Pengsen Xu Junxiu Liu Kai Li Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil Buildings corrugated steel plate pipe-arch composite structure inter-layer bonding local buckling stability critical buckling load |
| title | Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil |
| title_full | Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil |
| title_fullStr | Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil |
| title_full_unstemmed | Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil |
| title_short | Local Stability Analysis of a Composite Corrugated Steel Plate Pipe-Arch in Soil |
| title_sort | local stability analysis of a composite corrugated steel plate pipe arch in soil |
| topic | corrugated steel plate pipe-arch composite structure inter-layer bonding local buckling stability critical buckling load |
| url | https://www.mdpi.com/2075-5309/14/10/3290 |
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