Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel
Critical for the seismic safety of immersed tunnels is the magnitude of deformation and force developing in the segment joints. To investigate the seismic performance of segment joint in immersed tunnel, this paper presents a series of shaking table arrays tests that were performed on a microconcret...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2022-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2022/1095986 |
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| _version_ | 1832551254275915776 |
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| author | Xueming Zhang Linlin Song Hongjuan Chen Shicai Chen Zhinan Hu Yong Li |
| author_facet | Xueming Zhang Linlin Song Hongjuan Chen Shicai Chen Zhinan Hu Yong Li |
| author_sort | Xueming Zhang |
| collection | DOAJ |
| description | Critical for the seismic safety of immersed tunnels is the magnitude of deformation and force developing in the segment joints. To investigate the seismic performance of segment joint in immersed tunnel, this paper presents a series of shaking table arrays tests that were performed on a microconcrete tunnel model embedded in the soil. The tests take account of the uniform and wave passage effect in different apparent wave velocity of longitudinal seismic excitation. The result showed that the wave passage effect had a great impact on axial force, bending moment and deformation of joints. The comparison showed that structural response under nonuniform earthquake excitation is larger than that under uniform excitation. The simplified model was established in ABAQUS for numerical analysis. The soil around the tunnel was simplified as spring-damper, the tunnel was simplified as beam element, and the joint was simulated by nonlinear spring. The numerical simulation results were in good agreement with the experimental data. In addition, the model was analyzed by changing input apparent wave velocity, joint stiffness and joint number. The results showed that the deformation of joints was smaller and the deformation of flexible joints was greater under high apparent wave velocity. |
| format | Article |
| id | doaj-art-62b4fb6049d84bc1b20fe2a2adf2c5ac |
| institution | Kabale University |
| issn | 1875-9203 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-62b4fb6049d84bc1b20fe2a2adf2c5ac2025-02-03T06:01:52ZengWileyShock and Vibration1875-92032022-01-01202210.1155/2022/1095986Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed TunnelXueming Zhang0Linlin Song1Hongjuan Chen2Shicai Chen3Zhinan Hu4Yong Li5State Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresInstitute of GeophysicsThe Ministry of Education Laboratory of City and Project Safety and Disaster AlleviationState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresState Key Laboratory of Mechanical Behavior and System Safety of Traffic Engineering StructuresCritical for the seismic safety of immersed tunnels is the magnitude of deformation and force developing in the segment joints. To investigate the seismic performance of segment joint in immersed tunnel, this paper presents a series of shaking table arrays tests that were performed on a microconcrete tunnel model embedded in the soil. The tests take account of the uniform and wave passage effect in different apparent wave velocity of longitudinal seismic excitation. The result showed that the wave passage effect had a great impact on axial force, bending moment and deformation of joints. The comparison showed that structural response under nonuniform earthquake excitation is larger than that under uniform excitation. The simplified model was established in ABAQUS for numerical analysis. The soil around the tunnel was simplified as spring-damper, the tunnel was simplified as beam element, and the joint was simulated by nonlinear spring. The numerical simulation results were in good agreement with the experimental data. In addition, the model was analyzed by changing input apparent wave velocity, joint stiffness and joint number. The results showed that the deformation of joints was smaller and the deformation of flexible joints was greater under high apparent wave velocity.http://dx.doi.org/10.1155/2022/1095986 |
| spellingShingle | Xueming Zhang Linlin Song Hongjuan Chen Shicai Chen Zhinan Hu Yong Li Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel Shock and Vibration |
| title | Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel |
| title_full | Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel |
| title_fullStr | Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel |
| title_full_unstemmed | Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel |
| title_short | Shaking Table Test Investigation on Seismic Performance of Joint Model of Immersed Tunnel |
| title_sort | shaking table test investigation on seismic performance of joint model of immersed tunnel |
| url | http://dx.doi.org/10.1155/2022/1095986 |
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