Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models
Dynamic dam-foundation interaction is great important in the design and safety assessment of the dam structures. Two classic boundary conditions, i.e., the viscous-spring boundary and the viscous boundary, are employed to consider the radiation damping of the unbounded rock foundation. The input mod...
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2021/6660145 |
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| _version_ | 1832567424119996416 |
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| author | Denghong Chen Chunping Hou Feng Wang |
| author_facet | Denghong Chen Chunping Hou Feng Wang |
| author_sort | Denghong Chen |
| collection | DOAJ |
| description | Dynamic dam-foundation interaction is great important in the design and safety assessment of the dam structures. Two classic boundary conditions, i.e., the viscous-spring boundary and the viscous boundary, are employed to consider the radiation damping of the unbounded rock foundation. The input models of seismic excitation of the viscous-spring boundary and the viscous boundary are derived. The accuracy of the two boundary conditions in the dynamic analysis of the dam foundation is verified through the foundation analysis using an impulsive load. The influences of two boundary conditions and their earthquake input models on the seismic analysis of the Pine Flat and Jin’anqiao gravity dam-foundation-reservoir systems are then investigated. The results of displacements, hydrodynamic pressure, and principal stresses show that the agreement between the results of the viscous-spring boundary and viscous boundary is good. The relative errors of the two models in the Pine Flat and Jin’anqiao gravity dams are both less than 5%. They are both acceptable from an engineering point of view. |
| format | Article |
| id | doaj-art-0c6e8d15b3d24444b298446d7b216094 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-0c6e8d15b3d24444b298446d7b2160942025-02-03T01:01:25ZengWileyShock and Vibration1070-96221875-92032021-01-01202110.1155/2021/66601456660145Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input ModelsDenghong Chen0Chunping Hou1Feng Wang2State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin, China Institute of Water Resources and Hydropower Research, Beijing 100048, ChinaCollege of Civil Engineering & Architecture, China Three Gorges University, Yichang, Hubei 443002, ChinaCollege of Hydraulic & Environmental Engineering, China Three Gorges University, Yichang, Hubei 443002, ChinaDynamic dam-foundation interaction is great important in the design and safety assessment of the dam structures. Two classic boundary conditions, i.e., the viscous-spring boundary and the viscous boundary, are employed to consider the radiation damping of the unbounded rock foundation. The input models of seismic excitation of the viscous-spring boundary and the viscous boundary are derived. The accuracy of the two boundary conditions in the dynamic analysis of the dam foundation is verified through the foundation analysis using an impulsive load. The influences of two boundary conditions and their earthquake input models on the seismic analysis of the Pine Flat and Jin’anqiao gravity dam-foundation-reservoir systems are then investigated. The results of displacements, hydrodynamic pressure, and principal stresses show that the agreement between the results of the viscous-spring boundary and viscous boundary is good. The relative errors of the two models in the Pine Flat and Jin’anqiao gravity dams are both less than 5%. They are both acceptable from an engineering point of view.http://dx.doi.org/10.1155/2021/6660145 |
| spellingShingle | Denghong Chen Chunping Hou Feng Wang Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models Shock and Vibration |
| title | Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models |
| title_full | Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models |
| title_fullStr | Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models |
| title_full_unstemmed | Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models |
| title_short | Influences on the Seismic Response of the Gravity Dam-Foundation-Reservoir System with Different Boundary and Input Models |
| title_sort | influences on the seismic response of the gravity dam foundation reservoir system with different boundary and input models |
| url | http://dx.doi.org/10.1155/2021/6660145 |
| work_keys_str_mv | AT denghongchen influencesontheseismicresponseofthegravitydamfoundationreservoirsystemwithdifferentboundaryandinputmodels AT chunpinghou influencesontheseismicresponseofthegravitydamfoundationreservoirsystemwithdifferentboundaryandinputmodels AT fengwang influencesontheseismicresponseofthegravitydamfoundationreservoirsystemwithdifferentboundaryandinputmodels |