Research on Seismic Input Method of Layered Ground Foundation
The seismic input of layered foundation is an essential part of seismic analysis of structure- foundation system. Most of the traditional seismic input methods only consider the first reflection process of seismic waves at the interface of different media, ignoring the subsequent reflection and refr...
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| Veröffentlicht in: | IEEE access 2021, Vol.9, p.54820-54830 |
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| creator | Bi, Zhonghui Cui, Binghui Zhai, Yafei |
| description | The seismic input of layered foundation is an essential part of seismic analysis of structure- foundation system. Most of the traditional seismic input methods only consider the first reflection process of seismic waves at the interface of different media, ignoring the subsequent reflection and refraction propagation process, which can not truly reflect the wave propagation process in the layered foundation. This paper proposes a new seismic input method for layered foundation, considering all reflected and refracted waves. Firstly, the viscous-spring artificial boundary model of the layered foundation is established, which can simulate the absorption of scattered waves and the elastic recovery capacity of semi-infinite foundation at the same time. Then, based on the wave mechanics theory, the equivalent nodal force calculation formula is derived to realize the vibration input of layered ground. Finally, the calculation results of the layered foundation and two-way surge tower engineering are verified. The results show that: compared to the traditional input method, the method proposed in this paper has a significant influence on the seismic response of layered foundation, and the method in this paper can better meet the accuracy requirements of engineering earthquake resistance, which provides an effective and practical calculation method for seismic analysis of layered foundation structure. |
| doi_str_mv | 10.1109/ACCESS.2021.3070479 |
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Most of the traditional seismic input methods only consider the first reflection process of seismic waves at the interface of different media, ignoring the subsequent reflection and refraction propagation process, which can not truly reflect the wave propagation process in the layered foundation. This paper proposes a new seismic input method for layered foundation, considering all reflected and refracted waves. Firstly, the viscous-spring artificial boundary model of the layered foundation is established, which can simulate the absorption of scattered waves and the elastic recovery capacity of semi-infinite foundation at the same time. Then, based on the wave mechanics theory, the equivalent nodal force calculation formula is derived to realize the vibration input of layered ground. Finally, the calculation results of the layered foundation and two-way surge tower engineering are verified. The results show that: compared to the traditional input method, the method proposed in this paper has a significant influence on the seismic response of layered foundation, and the method in this paper can better meet the accuracy requirements of engineering earthquake resistance, which provides an effective and practical calculation method for seismic analysis of layered foundation structure.</description><identifier>ISSN: 2169-3536</identifier><identifier>EISSN: 2169-3536</identifier><identifier>DOI: 10.1109/ACCESS.2021.3070479</identifier><identifier>CODEN: IAECCG</identifier><language>eng</language><publisher>Piscataway: IEEE</publisher><subject>Buildings ; Damping ; Earthquake resistance ; Elastic recovery ; Elastic scattering ; equivalent nodal force ; Force ; Layered foundation ; Numerical models ; Reflection ; Refracted waves ; refraction ; Seismic analysis ; Seismic response ; Seismic surveys ; Seismic waves ; Solid modeling ; viscous-spring artificial boundary ; Wave mechanics ; Wave propagation ; Wave reflection</subject><ispartof>IEEE access, 2021, Vol.9, p.54820-54830</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c408t-7cdc2c9a3185ae2466f53975a598ab039f47b12e423cb9561b0c6e9eb7a6c6523</citedby><cites>FETCH-LOGICAL-c408t-7cdc2c9a3185ae2466f53975a598ab039f47b12e423cb9561b0c6e9eb7a6c6523</cites><orcidid>0000-0001-8382-2752</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9393343$$EHTML$$P50$$Gieee$$Hfree_for_read</linktohtml><link.rule.ids>314,776,780,860,2096,4010,27610,27900,27901,27902,54908</link.rule.ids></links><search><creatorcontrib>Bi, Zhonghui</creatorcontrib><creatorcontrib>Cui, Binghui</creatorcontrib><creatorcontrib>Zhai, Yafei</creatorcontrib><title>Research on Seismic Input Method of Layered Ground Foundation</title><title>IEEE access</title><addtitle>Access</addtitle><description>The seismic input of layered foundation is an essential part of seismic analysis of structure- foundation system. Most of the traditional seismic input methods only consider the first reflection process of seismic waves at the interface of different media, ignoring the subsequent reflection and refraction propagation process, which can not truly reflect the wave propagation process in the layered foundation. This paper proposes a new seismic input method for layered foundation, considering all reflected and refracted waves. Firstly, the viscous-spring artificial boundary model of the layered foundation is established, which can simulate the absorption of scattered waves and the elastic recovery capacity of semi-infinite foundation at the same time. Then, based on the wave mechanics theory, the equivalent nodal force calculation formula is derived to realize the vibration input of layered ground. Finally, the calculation results of the layered foundation and two-way surge tower engineering are verified. The results show that: compared to the traditional input method, the method proposed in this paper has a significant influence on the seismic response of layered foundation, and the method in this paper can better meet the accuracy requirements of engineering earthquake resistance, which provides an effective and practical calculation method for seismic analysis of layered foundation structure.</description><subject>Buildings</subject><subject>Damping</subject><subject>Earthquake resistance</subject><subject>Elastic recovery</subject><subject>Elastic scattering</subject><subject>equivalent nodal force</subject><subject>Force</subject><subject>Layered foundation</subject><subject>Numerical models</subject><subject>Reflection</subject><subject>Refracted waves</subject><subject>refraction</subject><subject>Seismic analysis</subject><subject>Seismic response</subject><subject>Seismic surveys</subject><subject>Seismic waves</subject><subject>Solid modeling</subject><subject>viscous-spring artificial boundary</subject><subject>Wave mechanics</subject><subject>Wave propagation</subject><subject>Wave reflection</subject><issn>2169-3536</issn><issn>2169-3536</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><sourceid>ESBDL</sourceid><sourceid>RIE</sourceid><sourceid>DOA</sourceid><recordid>eNpNkE1rwzAMhs3YYGXrL-jFsHM6f8R2fNihhLYrdAzW7WwcR1lT2riz00P__ZKllOkgCaH3kXgRmlAypZTo51mezzebKSOMTjlRJFX6Bo0YlTrhgsvbf_09Gse4I11k3UioEXr5gAg2uC32Dd5AHQ-1w6vmeGrxG7RbX2Jf4bU9Q4ASL4M_NSVe9Nm2tW8e0V1l9xHGl_qAvhbzz_w1Wb8vV_lsnbiUZG2iXOmY05bTTFhgqZSV4FoJK3RmC8J1laqCMkgZd4UWkhbESdBQKCudFIw_oNXALb3dmWOoDzacjbe1-Rv48G1saGu3B0OV6JlAtWIpBVWUqqOBIEJJ62zZsZ4G1jH4nxPE1uz8KTTd-4YJyrnOpJDdFh-2XPAxBqiuVykxve1msN30tpuL7Z1qMqhqALgqNNecp5z_AlycfFU</recordid><startdate>2021</startdate><enddate>2021</enddate><creator>Bi, Zhonghui</creator><creator>Cui, Binghui</creator><creator>Zhai, Yafei</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Most of the traditional seismic input methods only consider the first reflection process of seismic waves at the interface of different media, ignoring the subsequent reflection and refraction propagation process, which can not truly reflect the wave propagation process in the layered foundation. This paper proposes a new seismic input method for layered foundation, considering all reflected and refracted waves. Firstly, the viscous-spring artificial boundary model of the layered foundation is established, which can simulate the absorption of scattered waves and the elastic recovery capacity of semi-infinite foundation at the same time. Then, based on the wave mechanics theory, the equivalent nodal force calculation formula is derived to realize the vibration input of layered ground. Finally, the calculation results of the layered foundation and two-way surge tower engineering are verified. The results show that: compared to the traditional input method, the method proposed in this paper has a significant influence on the seismic response of layered foundation, and the method in this paper can better meet the accuracy requirements of engineering earthquake resistance, which provides an effective and practical calculation method for seismic analysis of layered foundation structure.</abstract><cop>Piscataway</cop><pub>IEEE</pub><doi>10.1109/ACCESS.2021.3070479</doi><tpages>11</tpages><orcidid>https://orcid.org/0000-0001-8382-2752</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Buildings Damping Earthquake resistance Elastic recovery Elastic scattering equivalent nodal force Force Layered foundation Numerical models Reflection Refracted waves refraction Seismic analysis Seismic response Seismic surveys Seismic waves Solid modeling viscous-spring artificial boundary Wave mechanics Wave propagation Wave reflection |
| title | Research on Seismic Input Method of Layered Ground Foundation |
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