New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall
Base-isolated buildings subjected to extreme earthquakes or near-fault pulse-like earthquakes can exceed their design gap distance and impact against the surrounding moat wall. Based on equating energy dissipation and maximum collision compression deformation of isolated structure with the Hertz-dam...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2014/151237 |
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| _version_ | 1832556644551098368 |
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| author | Yang Liu Wen-Guang Liu Xin Wang Wen-Fu He Qiao-Rong Yang |
| author_facet | Yang Liu Wen-Guang Liu Xin Wang Wen-Fu He Qiao-Rong Yang |
| author_sort | Yang Liu |
| collection | DOAJ |
| description | Base-isolated buildings subjected to extreme earthquakes or near-fault pulse-like earthquakes can exceed their design gap distance and impact against the surrounding moat wall. Based on equating energy dissipation and maximum collision compression deformation of isolated structure with the Hertz-damp model and Kevin-Voigt model in the process of collision, an equivalent linear impact model (ELIM) is proposed to better predict impact response of seismic isolated structure. The formula of the equivalent linear stiffness of ELIM is theoretically derived. The effectiveness of ELIM is verified by comparing the results of numerical analyses with the results of pounding experiments. Four near-fault earthquakes are selected to validate rationality and accuracy of the proposed model using numerical analysis. The results indicate that the proposed linear model can nearly capture impact behavior of isolated structure in simulating the pounding-involved structural response. |
| format | Article |
| id | doaj-art-e70666ca768741b399d61f225fbe13d2 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-e70666ca768741b399d61f225fbe13d22025-02-03T05:44:48ZengWileyShock and Vibration1070-96221875-92032014-01-01201410.1155/2014/151237151237New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat WallYang Liu0Wen-Guang Liu1Xin Wang2Wen-Fu He3Qiao-Rong Yang4Department of Civil Engineering, Shanghai University, Shanghai 200072, ChinaDepartment of Civil Engineering, Shanghai University, Shanghai 200072, ChinaSchool of Mechanicals, Shanghai Dianji University, 1350 Ganlan Road, Shanghai, ChinaDepartment of Civil Engineering, Shanghai University, Shanghai 200072, ChinaDepartment of Civil Engineering, Shanghai University, Shanghai 200072, ChinaBase-isolated buildings subjected to extreme earthquakes or near-fault pulse-like earthquakes can exceed their design gap distance and impact against the surrounding moat wall. Based on equating energy dissipation and maximum collision compression deformation of isolated structure with the Hertz-damp model and Kevin-Voigt model in the process of collision, an equivalent linear impact model (ELIM) is proposed to better predict impact response of seismic isolated structure. The formula of the equivalent linear stiffness of ELIM is theoretically derived. The effectiveness of ELIM is verified by comparing the results of numerical analyses with the results of pounding experiments. Four near-fault earthquakes are selected to validate rationality and accuracy of the proposed model using numerical analysis. The results indicate that the proposed linear model can nearly capture impact behavior of isolated structure in simulating the pounding-involved structural response.http://dx.doi.org/10.1155/2014/151237 |
| spellingShingle | Yang Liu Wen-Guang Liu Xin Wang Wen-Fu He Qiao-Rong Yang New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall Shock and Vibration |
| title | New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall |
| title_full | New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall |
| title_fullStr | New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall |
| title_full_unstemmed | New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall |
| title_short | New Equivalent Linear Impact Model for Simulation of Seismic Isolated Structure Pounding against Moat Wall |
| title_sort | new equivalent linear impact model for simulation of seismic isolated structure pounding against moat wall |
| url | http://dx.doi.org/10.1155/2014/151237 |
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