{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:35:10Z","timestamp":1760060110723,"version":"build-2065373602"},"reference-count":32,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T00:00:00Z","timestamp":1753833600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Key R&amp;D Program of China","award":["2023YFB2604402","51978581","2025ZNSFSC1315"],"award-info":[{"award-number":["2023YFB2604402","51978581","2025ZNSFSC1315"]}]},{"name":"National Natural Science Foundation of China","award":["2023YFB2604402","51978581","2025ZNSFSC1315"],"award-info":[{"award-number":["2023YFB2604402","51978581","2025ZNSFSC1315"]}]},{"name":"Sichuan Science and Technology Program","award":["2023YFB2604402","51978581","2025ZNSFSC1315"],"award-info":[{"award-number":["2023YFB2604402","51978581","2025ZNSFSC1315"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Tall-pier girder bridges with fluid viscous dampers (FVDs) are widely used in earthquake-prone mountainous areas. However, the influence of higher-order modes and near-field earthquakes on tall piers has rarely been studied. Based on an asymmetric tall-pier girder bridge, a finite element model is established, and the parameters of FVDs are optimized using SAP2000. The higher-order mode effects on tall piers are explored by proportionally reducing the pier heights. The pulse effects of near-field earthquakes on FVD mitigation and higher-order modes are analyzed. The optimal FVDs can coordinate the force distribution among tall piers, effectively reducing displacement responses and internal forces. Due to higher-order modes, the internal force envelopes of tall piers exhibit concave-convex distributions. As pier heights decrease, the internal force envelopes gradually become linear, implying reduced higher-order mode effects. Long-period pulse-like motions produce the maximum seismic responses because the slender tall-pier bridge is sensitive to high spectral accelerations in medium-to-long periods. The higher-order modes are more easily excited by near-field motions with large spectral values in the high-frequency range. Overall, FVDs can simultaneously reduce the seismic responses of tall piers and diminish the influence of higher-order modes.<\/jats:p>","DOI":"10.3390\/sym17081209","type":"journal-article","created":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T10:55:37Z","timestamp":1753872937000},"page":"1209","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Seismic Performance of an Asymmetric Tall-Pier Girder Bridge with Fluid Viscous Dampers Under Near-Field Earthquakes"],"prefix":"10.3390","volume":"17","author":[{"given":"Ziang","family":"Pan","sequence":"first","affiliation":[{"name":"School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China"}]},{"given":"Qiming","family":"Qi","sequence":"additional","affiliation":[{"name":"School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China"}]},{"given":"Jianxian","family":"He","sequence":"additional","affiliation":[{"name":"School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China"}]},{"given":"Huaping","family":"Yang","sequence":"additional","affiliation":[{"name":"School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China"}]},{"given":"Changjiang","family":"Shao","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China"}]},{"given":"Wanting","family":"Gong","sequence":"additional","affiliation":[{"name":"School of Architecture and Civil Engineering, Chengdu University, Chengdu 610106, China"}]},{"given":"Haomeng","family":"Cui","sequence":"additional","affiliation":[{"name":"School of Civil Engineering, Southwest Jiaotong University, Chengdu 610031, China"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"04020118","DOI":"10.1061\/(ASCE)BE.1943-5592.0001665","article-title":"Shake table test on a long-span cable-stayed bridge with viscous dampers considering wave passage effects","volume":"26","author":"Guo","year":"2021","journal-title":"J. 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