{"title":"考虑非线性动态分析方法的海啸作用下 SDOF 结构的损伤谱","authors":"Xiaolan Pan, Zhongyao Lin, Lianpeng Zhang, Zhi Zheng","doi":"10.1142/s1793431123500343","DOIUrl":null,"url":null,"abstract":"<p>This paper studies the damage spectra of single-degree-of-freedom (SDOF) systems for tsunami loading. The 2011 Tohoku tsunami wave traces are computed and obtained by adopting the Cornell Multi-grid Coupled Tsunami (COMCOT) model and are further verified by the Tohoku Tsunami Joint Survey (TTJS) data. The tsunami response analyses of SDOF systems are conducted taking into account the dynamic analysis method. The classical ductility damage is considered as the damage performance. The damage spectra are computed for five force reduction factors and 791 tsunami loadings. The effects of inundation depths, hysteretic model, post-yield stiffness ratio, <span><math altimg=\"eq-00001.gif\" display=\"inline\" overflow=\"scroll\"><mi>α</mi></math></span><span></span>, viscous damping ratio, <span><math altimg=\"eq-00002.gif\" display=\"inline\" overflow=\"scroll\"><mi>ξ</mi></math></span><span></span>, are explored and interpreted scientifically and statistically. The results demonstrate that the effect of the hysteretic model, force reduction factor, <i>R</i>, post-yield stiffness ratio, <span><math altimg=\"eq-00003.gif\" display=\"inline\" overflow=\"scroll\"><mi>α</mi></math></span><span></span>, viscous damping ratio, <span><math altimg=\"eq-00004.gif\" display=\"inline\" overflow=\"scroll\"><mi>ξ</mi></math></span><span></span>, on the damage of the structure is evident. Comparison with the static method and influence analysis of structural damping indicate the necessity for the application of the dynamic method. A simplified predictive formulation is developed for the evaluation of structural damage for tsunami loadings.</p>","PeriodicalId":50213,"journal":{"name":"Journal of Earthquake and Tsunami","volume":null,"pages":null},"PeriodicalIF":2.1000,"publicationDate":"2024-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Damage Spectra of SDOF Structures Under Tsunami Actions Considering the Nonlinear Dynamic Analysis Method\",\"authors\":\"Xiaolan Pan, Zhongyao Lin, Lianpeng Zhang, Zhi Zheng\",\"doi\":\"10.1142/s1793431123500343\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This paper studies the damage spectra of single-degree-of-freedom (SDOF) systems for tsunami loading. The 2011 Tohoku tsunami wave traces are computed and obtained by adopting the Cornell Multi-grid Coupled Tsunami (COMCOT) model and are further verified by the Tohoku Tsunami Joint Survey (TTJS) data. The tsunami response analyses of SDOF systems are conducted taking into account the dynamic analysis method. The classical ductility damage is considered as the damage performance. The damage spectra are computed for five force reduction factors and 791 tsunami loadings. The effects of inundation depths, hysteretic model, post-yield stiffness ratio, <span><math altimg=\\\"eq-00001.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>α</mi></math></span><span></span>, viscous damping ratio, <span><math altimg=\\\"eq-00002.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>ξ</mi></math></span><span></span>, are explored and interpreted scientifically and statistically. The results demonstrate that the effect of the hysteretic model, force reduction factor, <i>R</i>, post-yield stiffness ratio, <span><math altimg=\\\"eq-00003.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>α</mi></math></span><span></span>, viscous damping ratio, <span><math altimg=\\\"eq-00004.gif\\\" display=\\\"inline\\\" overflow=\\\"scroll\\\"><mi>ξ</mi></math></span><span></span>, on the damage of the structure is evident. Comparison with the static method and influence analysis of structural damping indicate the necessity for the application of the dynamic method. A simplified predictive formulation is developed for the evaluation of structural damage for tsunami loadings.</p>\",\"PeriodicalId\":50213,\"journal\":{\"name\":\"Journal of Earthquake and Tsunami\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.1000,\"publicationDate\":\"2024-01-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Earthquake and Tsunami\",\"FirstCategoryId\":\"89\",\"ListUrlMain\":\"https://doi.org/10.1142/s1793431123500343\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"GEOCHEMISTRY & GEOPHYSICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Earthquake and Tsunami","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1142/s1793431123500343","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"GEOCHEMISTRY & GEOPHYSICS","Score":null,"Total":0}
Damage Spectra of SDOF Structures Under Tsunami Actions Considering the Nonlinear Dynamic Analysis Method
This paper studies the damage spectra of single-degree-of-freedom (SDOF) systems for tsunami loading. The 2011 Tohoku tsunami wave traces are computed and obtained by adopting the Cornell Multi-grid Coupled Tsunami (COMCOT) model and are further verified by the Tohoku Tsunami Joint Survey (TTJS) data. The tsunami response analyses of SDOF systems are conducted taking into account the dynamic analysis method. The classical ductility damage is considered as the damage performance. The damage spectra are computed for five force reduction factors and 791 tsunami loadings. The effects of inundation depths, hysteretic model, post-yield stiffness ratio, , viscous damping ratio, , are explored and interpreted scientifically and statistically. The results demonstrate that the effect of the hysteretic model, force reduction factor, R, post-yield stiffness ratio, , viscous damping ratio, , on the damage of the structure is evident. Comparison with the static method and influence analysis of structural damping indicate the necessity for the application of the dynamic method. A simplified predictive formulation is developed for the evaluation of structural damage for tsunami loadings.
期刊介绍:
Journal of Earthquake and Tsunami provides a common forum for scientists and engineers working in the areas of earthquakes and tsunamis to communicate and interact with one another and thereby enhance the opportunities for such cross-fertilization of ideas. The Journal publishes original papers pertaining to state-of-the-art research and development in Geological and Seismological Setting; Ground Motion, Site and Building Response; Tsunami Generation, Propagation, Damage and Mitigation, as well as Education and Risk Management following an earthquake or a tsunami.
We welcome papers in the following categories:
Geological and Seismological Aspects
Tectonics: (Geology - earth processes)
Fault processes and earthquake generation: seismology (earthquake processes)
Earthquake wave propagation: geophysics
Remote sensing
Earthquake Engineering
Geotechnical hazards and response
Effects on buildings and structures
Risk analysis and management
Retrofitting and remediation
Education and awareness
Material Behaviour
Soil
Reinforced concrete
Steel
Tsunamis
Tsunamigenic sources
Tsunami propagation: Physical oceanography
Run-up and damage: wave hydraulics.