Influence of Restrainer Piers on the Seismic Performance of Long Bridges with Equal-Height Piers
Pounding may occur between the main girders under the action of strong earthquakes, so as between main girders and abutments. This causes excessive longitudinal displacement of the main girder and unseating damage to bridges. Because long bridges in mountainous areas with high intensity are easy to...
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| Veröffentlicht in: | Mathematical problems in engineering 2021, Vol.2021, p.1-23 |
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| creator | Luo, Yuhu Li, Yongguang Wang, Xu Lu, Guangping |
| description | Pounding may occur between the main girders under the action of strong earthquakes, so as between main girders and abutments. This causes excessive longitudinal displacement of the main girder and unseating damage to bridges. Because long bridges in mountainous areas with high intensity are easy to unseat, the authors studied the influence of restrainer piers, expansion joint spacings (EJSs), and the span on the seismic performance of long bridges. The ABAQUS finite element software was used to simulate a bridge dynamic analysis model considering the elastoplasticity of the pounding effect of the pier and the beam. By inputting El-Centro, Northbridge, and Taft seismic waves, the time-history analysis of the seismic response of long bridges was carried out. The results indicated that a reasonable number of restrainer piers, an appropriate EJS, and a span could effectively reduce the maximum relative displacement of pier-beams. This behavior will improve the seismic performance of bridge structures. Moreover, for a 24-span equal-height beam bridge, the optimum seismic effect was obtained when 3 restrainer piers, an EJS of 70 mm, and a 50 m span were used. |
| doi_str_mv | 10.1155/2021/6651215 |
| format | Article |
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This causes excessive longitudinal displacement of the main girder and unseating damage to bridges. Because long bridges in mountainous areas with high intensity are easy to unseat, the authors studied the influence of restrainer piers, expansion joint spacings (EJSs), and the span on the seismic performance of long bridges. The ABAQUS finite element software was used to simulate a bridge dynamic analysis model considering the elastoplasticity of the pounding effect of the pier and the beam. By inputting El-Centro, Northbridge, and Taft seismic waves, the time-history analysis of the seismic response of long bridges was carried out. The results indicated that a reasonable number of restrainer piers, an appropriate EJS, and a span could effectively reduce the maximum relative displacement of pier-beams. This behavior will improve the seismic performance of bridge structures. Moreover, for a 24-span equal-height beam bridge, the optimum seismic effect was obtained when 3 restrainer piers, an EJS of 70 mm, and a 50 m span were used.</description><identifier>ISSN: 1024-123X</identifier><identifier>EISSN: 1563-5147</identifier><identifier>DOI: 10.1155/2021/6651215</identifier><language>eng</language><publisher>New York: Hindawi</publisher><subject>Bearings ; Bridge piers ; Bridges ; Earthquake damage ; Earthquakes ; Elastoplasticity ; Expansion joints ; Finite element method ; Friction ; Girders ; Mathematical models ; Mountainous areas ; Pounding ; Seismic effects ; Seismic response ; Seismic waves</subject><ispartof>Mathematical problems in engineering, 2021, Vol.2021, p.1-23</ispartof><rights>Copyright © 2021 Yuhu Luo et al.</rights><rights>Copyright © 2021 Yuhu Luo et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c294t-ff949033bb9f3f2c6a973f49fdc97c3c833a4ee53acbc9a05c72f9a3b343af253</cites><orcidid>0000-0003-2003-5641 ; 0000-0002-3250-5818 ; 0000-0002-0385-6280 ; 0000-0003-0977-3782</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,4024,27923,27924,27925</link.rule.ids></links><search><contributor>Wang, Hao</contributor><contributor>Hao Wang</contributor><creatorcontrib>Luo, Yuhu</creatorcontrib><creatorcontrib>Li, Yongguang</creatorcontrib><creatorcontrib>Wang, Xu</creatorcontrib><creatorcontrib>Lu, Guangping</creatorcontrib><title>Influence of Restrainer Piers on the Seismic Performance of Long Bridges with Equal-Height Piers</title><title>Mathematical problems in engineering</title><description>Pounding may occur between the main girders under the action of strong earthquakes, so as between main girders and abutments. 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This causes excessive longitudinal displacement of the main girder and unseating damage to bridges. Because long bridges in mountainous areas with high intensity are easy to unseat, the authors studied the influence of restrainer piers, expansion joint spacings (EJSs), and the span on the seismic performance of long bridges. The ABAQUS finite element software was used to simulate a bridge dynamic analysis model considering the elastoplasticity of the pounding effect of the pier and the beam. By inputting El-Centro, Northbridge, and Taft seismic waves, the time-history analysis of the seismic response of long bridges was carried out. The results indicated that a reasonable number of restrainer piers, an appropriate EJS, and a span could effectively reduce the maximum relative displacement of pier-beams. This behavior will improve the seismic performance of bridge structures. 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| subjects | Bearings Bridge piers Bridges Earthquake damage Earthquakes Elastoplasticity Expansion joints Finite element method Friction Girders Mathematical models Mountainous areas Pounding Seismic effects Seismic response Seismic waves |
| title | Influence of Restrainer Piers on the Seismic Performance of Long Bridges with Equal-Height Piers |
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