Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges
Soil-steel composite bridges (SSCBs) are commonly utilized as overpasses. In the majority of existing studies, the transverse structural performance of SSCBs is primarily focused on, while neglecting their longitudinal structural performance. The aims of this paper are to clarify the longitudinal pr...
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Elsevier
2025-07-01
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| Series: | Case Studies in Construction Materials |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2214509524013007 |
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| author | Yu Zhang Baodong Liu Weiming Sun Lingwen Meng |
| author_facet | Yu Zhang Baodong Liu Weiming Sun Lingwen Meng |
| author_sort | Yu Zhang |
| collection | DOAJ |
| description | Soil-steel composite bridges (SSCBs) are commonly utilized as overpasses. In the majority of existing studies, the transverse structural performance of SSCBs is primarily focused on, while neglecting their longitudinal structural performance. The aims of this paper are to clarify the longitudinal properties and compensate for the paucity of research on the longitudinal structural performance of SSCBs. In current study, field tests were conducted on a SSCB case bridge in a mining area, both in the construction stage and post-construction stage. Subsequently, longitudinal differences in the structural settlements, deformations, and hoop strains were analyzed. Additionally, a refined three-dimensional finite element model was developed and verified to analyze the transfer behavior of soil pressure above the structure along the longitudinal direction. The results indicate that in the construction stage, the difference in the soil-covered height primarily account for the differences in structural performances along the longitudinal direction. At the end of backfilling, the settlements, deformations, and hoop strains in the middle section are all greater than those in the end sections. In the post-construction stage, further developments of longitudinal structural characteristics occur due to creep deformation of the foundation soil and disturbances from mining trucks. One year after construction, the structural characteristics have stabilized. The maximum settlement reaches −1.014 m and the maximum settlement difference reaches 0.365 m. The differential settlement ratio, at 0.62 %, remains within the 1 % limit specified in the CHBDC code. Due to longitudinal settlement differences, the soil pressure in the higher settlement zone is transferred to the lower settlement zone by the longitudinal soil arching effect, which benefits the load-bearing capacity of SSCBs. |
| format | Article |
| id | doaj-art-75323e8c982e453795dfd79cabbf9d36 |
| institution | DOAJ |
| issn | 2214-5095 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-75323e8c982e453795dfd79cabbf9d362025-08-20T02:51:00ZengElsevierCase Studies in Construction Materials2214-50952025-07-0122e0414810.1016/j.cscm.2024.e04148Experimental and numerical study on longitudinal structural performance of soil-steel composite bridgesYu Zhang0Baodong Liu1Weiming Sun2Lingwen Meng3School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, ChinaSchool of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; Corresponding author.School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China; China Railway Bridge & Tunnel Technologies Co., Ltd., Nanjing, Jiangsu 210061, ChinaHengshui Yitong Pipe Industry Co., Ltd., Hengshui, Hebei 053400, ChinaSoil-steel composite bridges (SSCBs) are commonly utilized as overpasses. In the majority of existing studies, the transverse structural performance of SSCBs is primarily focused on, while neglecting their longitudinal structural performance. The aims of this paper are to clarify the longitudinal properties and compensate for the paucity of research on the longitudinal structural performance of SSCBs. In current study, field tests were conducted on a SSCB case bridge in a mining area, both in the construction stage and post-construction stage. Subsequently, longitudinal differences in the structural settlements, deformations, and hoop strains were analyzed. Additionally, a refined three-dimensional finite element model was developed and verified to analyze the transfer behavior of soil pressure above the structure along the longitudinal direction. The results indicate that in the construction stage, the difference in the soil-covered height primarily account for the differences in structural performances along the longitudinal direction. At the end of backfilling, the settlements, deformations, and hoop strains in the middle section are all greater than those in the end sections. In the post-construction stage, further developments of longitudinal structural characteristics occur due to creep deformation of the foundation soil and disturbances from mining trucks. One year after construction, the structural characteristics have stabilized. The maximum settlement reaches −1.014 m and the maximum settlement difference reaches 0.365 m. The differential settlement ratio, at 0.62 %, remains within the 1 % limit specified in the CHBDC code. Due to longitudinal settlement differences, the soil pressure in the higher settlement zone is transferred to the lower settlement zone by the longitudinal soil arching effect, which benefits the load-bearing capacity of SSCBs.http://www.sciencedirect.com/science/article/pii/S2214509524013007Soil-steel composite bridgeCorrugated steel structureLongitudinal structural performanceLongitudinal soil arching effectField testFinite element modeling |
| spellingShingle | Yu Zhang Baodong Liu Weiming Sun Lingwen Meng Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges Case Studies in Construction Materials Soil-steel composite bridge Corrugated steel structure Longitudinal structural performance Longitudinal soil arching effect Field test Finite element modeling |
| title | Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges |
| title_full | Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges |
| title_fullStr | Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges |
| title_full_unstemmed | Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges |
| title_short | Experimental and numerical study on longitudinal structural performance of soil-steel composite bridges |
| title_sort | experimental and numerical study on longitudinal structural performance of soil steel composite bridges |
| topic | Soil-steel composite bridge Corrugated steel structure Longitudinal structural performance Longitudinal soil arching effect Field test Finite element modeling |
| url | http://www.sciencedirect.com/science/article/pii/S2214509524013007 |
| work_keys_str_mv | AT yuzhang experimentalandnumericalstudyonlongitudinalstructuralperformanceofsoilsteelcompositebridges AT baodongliu experimentalandnumericalstudyonlongitudinalstructuralperformanceofsoilsteelcompositebridges AT weimingsun experimentalandnumericalstudyonlongitudinalstructuralperformanceofsoilsteelcompositebridges AT lingwenmeng experimentalandnumericalstudyonlongitudinalstructuralperformanceofsoilsteelcompositebridges |