Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs
［Objective］Construction deviation can affect project outcomes to varying degrees, making it necessary to study the impact of such deviations on the structural dimensions and vibration reduction performance of steel spring floating slabs. ［Method］Focusing on the on-site construction deviation issues...
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| Format: | Article |
| Language: | zho |
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Urban Mass Transit Magazine Press
2024-12-01
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| Series: | Chengshi guidao jiaotong yanjiu |
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| Online Access: | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.036.html |
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| _version_ | 1846127837991403520 |
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| author | ZHANG Yu WANG Jianxi GUO Qing WANG Xiaoman CUI Zeyi |
| author_facet | ZHANG Yu WANG Jianxi GUO Qing WANG Xiaoman CUI Zeyi |
| author_sort | ZHANG Yu |
| collection | DOAJ |
| description | ［Objective］Construction deviation can affect project outcomes to varying degrees, making it necessary to study the impact of such deviations on the structural dimensions and vibration reduction performance of steel spring floating slabs. ［Method］Focusing on the on-site construction deviation issues during the cast-in-place steel spring floating slab installation in curved sections of metro tunnels, a multi-process mapping theoretical model is established using mathematical geometry methods. By considering deviation combinations of different working conditions, the deviation ranges for the base and floating slab thicknesses are analyzed. Within these ranges, a dynamics model is built using ABAQUS software to evaluate the impact of construction deviations on vibration reduction performance. ［Result & Conclusion］When the tunnel centerline deviates, the base thickness ranges from 75.72 to 281.75 mm, and the floating slab thickness ranges from 278.28 mm to 325.00 mm. Within the base thickness deviation, the peak of the rail vibration response is concentrated in the low-frequency range below 12.50 Hz. The greatest impact on vibration reduction performance occurs when the base thickness is 65 mm, reducing the vibration reduction performance by 23.90%. Within the floating slab thickness deviation range, the peak of rail vibration response is concentrated in the low-frequency range below 3.15 Hz. The greatest impact on vibration reduction performance occurs when the floating slab thickness decreases to 45 mm, reducing the vibration reduction performance by 24.24%. |
| format | Article |
| id | doaj-art-b77d4097d7414fa4b547798bdd0e2c8d |
| institution | Kabale University |
| issn | 1007-869X |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Urban Mass Transit Magazine Press |
| record_format | Article |
| series | Chengshi guidao jiaotong yanjiu |
| spelling | doaj-art-b77d4097d7414fa4b547798bdd0e2c8d2024-12-11T08:28:04ZzhoUrban Mass Transit Magazine PressChengshi guidao jiaotong yanjiu1007-869X2024-12-01271222422910.16037/j.1007-869x.2024.12.036Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating SlabsZHANG Yu0WANG Jianxi1GUO Qing2WANG Xiaoman3CUI Zeyi4State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Railway University, 050043, Shijiazhuang, ChinaState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Railway University, 050043, Shijiazhuang, ChinaState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Railway University, 050043, Shijiazhuang, ChinaState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Railway University, 050043, Shijiazhuang, ChinaState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering Structures, Shijiazhuang Railway University, 050043, Shijiazhuang, China［Objective］Construction deviation can affect project outcomes to varying degrees, making it necessary to study the impact of such deviations on the structural dimensions and vibration reduction performance of steel spring floating slabs. ［Method］Focusing on the on-site construction deviation issues during the cast-in-place steel spring floating slab installation in curved sections of metro tunnels, a multi-process mapping theoretical model is established using mathematical geometry methods. By considering deviation combinations of different working conditions, the deviation ranges for the base and floating slab thicknesses are analyzed. Within these ranges, a dynamics model is built using ABAQUS software to evaluate the impact of construction deviations on vibration reduction performance. ［Result & Conclusion］When the tunnel centerline deviates, the base thickness ranges from 75.72 to 281.75 mm, and the floating slab thickness ranges from 278.28 mm to 325.00 mm. Within the base thickness deviation, the peak of the rail vibration response is concentrated in the low-frequency range below 12.50 Hz. The greatest impact on vibration reduction performance occurs when the base thickness is 65 mm, reducing the vibration reduction performance by 23.90%. Within the floating slab thickness deviation range, the peak of rail vibration response is concentrated in the low-frequency range below 3.15 Hz. The greatest impact on vibration reduction performance occurs when the floating slab thickness decreases to 45 mm, reducing the vibration reduction performance by 24.24%.https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.036.htmlmetrosteel spring floating slabconstruction deviationdamping performance |
| spellingShingle | ZHANG Yu WANG Jianxi GUO Qing WANG Xiaoman CUI Zeyi Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs Chengshi guidao jiaotong yanjiu metro steel spring floating slab construction deviation damping performance |
| title | Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs |
| title_full | Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs |
| title_fullStr | Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs |
| title_full_unstemmed | Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs |
| title_short | Influence of Construction Deviations on Structural Dimensions and Vibration Reduction Performance of Steel Spring Floating Slabs |
| title_sort | influence of construction deviations on structural dimensions and vibration reduction performance of steel spring floating slabs |
| topic | metro steel spring floating slab construction deviation damping performance |
| url | https://umt1998.tongji.edu.cn/journal/paper/doi/10.16037/j.1007-869x.2024.12.036.html |
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