Influence of apparent wave velocity on seismic performance of a super-long-span triple-tower suspension bridge
dc.contributor.author | Wang, Hao | |
dc.contributor.author | Li, Jian | |
dc.contributor.author | Tao, Tianyou | |
dc.contributor.author | Wang, Chunfeng | |
dc.contributor.author | Li, Aiqun | |
dc.date.accessioned | 2016-12-05T19:30:44Z | |
dc.date.available | 2016-12-05T19:30:44Z | |
dc.date.issued | 2015-06-25 | |
dc.identifier.citation | Wang, H., Li, J., Tao, T., Wang, C., & Li, A. (2015). Influence of apparent wave velocity on seismic performance of a super-long-span triple-tower suspension bridge. Advances in Mechanical Engineering, 7(6), 1687814015589464. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/22147 | |
dc.description.abstract | As one of the main characteristics of seismic waves, apparent wave velocity has great influence on seismic responses of long-span suspension bridges. Understanding these influences is important for seismic design. In this article, the critical issues concerning the traveling wave effect analysis are first reviewed. Taizhou Bridge, the longest triple-tower suspension bridge in the world, is then taken as an example for this investigation. A three-dimensional finite element model of the bridge is established in ABAQUS, and the LANCZOS eigenvalue solver is employed to calculate the structural dynamic characteristics. Traveling wave effect on seismic responses of these long-span triple-tower suspension bridges is investigated. Envelopes of seismic shear force and moment in the longitudinal direction along the three towers, relative displacements between the towers and the girder, and reaction forces at the bottoms of the three towers under different apparent wave velocities are calculated and presented in detail. The results show that the effect of apparent wave velocity on the seismic responses of triple-tower suspension bridge fluctuates when the velocity is lower than 2000 m/s, and the effects turn stable when the velocity becomes larger. In addition, the effects of traveling wave are closely related to spectral characteristics and propagation direction of the seismic wave, and seismic responses of components closer to the source are relatively larger. Therefore, reliable estimation of the seismic input and apparent wave velocity according to the characteristics of the bridge site are significant for accurate prediction of seismic responses. This study provides critical reference for seismic analysis and design of long-span triple-tower suspension bridges. | en_US |
dc.publisher | SAGE Publications | en_US |
dc.rights | This article is distributed under the terms of the Creative Commons Attribution 3.0 License (http://www.creativecommons.org/licenses/by/3.0/) which permits any use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (http://www.uk.sagepub.com/aboutus/openaccess.htm). | en_US |
dc.rights.uri | http://www.creativecommons.org/licenses/by/3.0/ | |
dc.subject | Apparent wave velocity | en_US |
dc.subject | seismic performance | en_US |
dc.subject | triple-tower suspension bridges | en_US |
dc.subject | non-uniform ground motion | en_US |
dc.subject | propagation direction | en_US |
dc.title | Influence of apparent wave velocity on seismic performance of a super-long-span triple-tower suspension bridge | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Li, Jian | |
kusw.kudepartment | Civil, Environmental & Architectural Engineering | en_US |
dc.identifier.doi | 10.1177/1687814015589464 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item meets KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess |
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