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Seismic performance evaluation of a novel shape-optimized composite metallic yielding damper

•A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed.•SCMYD can dissipate energy in multi-levels of earthquakes by shear and bending parts.•Optimization methods can eliminate stress concentrations and reduce material waste.•SCMYD is superior in energy consumption capacity...

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Published in:Engineering structures 2022-10, Vol.268, p.114714, Article 114714
Main Authors: Wang, Jiachen, Men, Jinjie, Zhang, Qian, Fan, Dongxin, Zhang, Zhiyong, Huang, Chao-Hsun
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cited_by cdi_FETCH-LOGICAL-c343t-cc957a678c915c8c724edeb2905a23652a7e386977393e70020dab2ba4b6f403
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container_start_page 114714
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creator Wang, Jiachen
Men, Jinjie
Zhang, Qian
Fan, Dongxin
Zhang, Zhiyong
Huang, Chao-Hsun
description •A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed.•SCMYD can dissipate energy in multi-levels of earthquakes by shear and bending parts.•Optimization methods can eliminate stress concentrations and reduce material waste.•SCMYD is superior in energy consumption capacity and hysteresis stability.•SCMYD has the best performance when the yield load ratio of the shear part is 0.4. A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed to improve the energy dissipation capacity under multiple levels of earthquakes. The SCMYD was developed by combining the shear and the bending part in parallel, where the bending part is arranged symmetrically on both sides of the shear part to restrain the out-of-plane deformation under large displacements. In SCMYD, the yielding of the shear part is designed to consume seismic energy under minor earthquakes, while the collective plastic deformation of the shear and bending parts are used to dissipate inputting energy under major earthquakes. In addition, the shear and bending parts were shape-optimized to improve fatigue performance and material utilization. The corresponding design formulas of the SCMYD were also derived. Furthermore, the effectiveness of the optimization and the seismic performance of the SCMYD were evaluated by the cyclic loading test in terms of failure mode, combined hysteretic behavior, and energy dissipation. Additionally, the effect of the yield load ratio of the shear part (β) on the seismic performance of the SCMYD is discussed. Results demonstrated that the shear and bending parts are able to achieve a uniform stress distribution after optimization, while the design formula is also available for the preliminary design of SCMYD. Compared to conventional metallic yielding dampers, the SCMYD is superior with regard to hysteresis stability, loading and energy dissipation capacity. Besides, the SCMYD is capable of consuming energy under both minor and major earthquakes as intended and exhibits desirable seismic performance when the β value is 0.4. The research findings are expected to provide a reference for the design and real-world applications of the SCMYD.
doi_str_mv 10.1016/j.engstruct.2022.114714
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A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed to improve the energy dissipation capacity under multiple levels of earthquakes. The SCMYD was developed by combining the shear and the bending part in parallel, where the bending part is arranged symmetrically on both sides of the shear part to restrain the out-of-plane deformation under large displacements. In SCMYD, the yielding of the shear part is designed to consume seismic energy under minor earthquakes, while the collective plastic deformation of the shear and bending parts are used to dissipate inputting energy under major earthquakes. In addition, the shear and bending parts were shape-optimized to improve fatigue performance and material utilization. The corresponding design formulas of the SCMYD were also derived. Furthermore, the effectiveness of the optimization and the seismic performance of the SCMYD were evaluated by the cyclic loading test in terms of failure mode, combined hysteretic behavior, and energy dissipation. Additionally, the effect of the yield load ratio of the shear part (β) on the seismic performance of the SCMYD is discussed. Results demonstrated that the shear and bending parts are able to achieve a uniform stress distribution after optimization, while the design formula is also available for the preliminary design of SCMYD. Compared to conventional metallic yielding dampers, the SCMYD is superior with regard to hysteresis stability, loading and energy dissipation capacity. Besides, the SCMYD is capable of consuming energy under both minor and major earthquakes as intended and exhibits desirable seismic performance when the β value is 0.4. The research findings are expected to provide a reference for the design and real-world applications of the SCMYD.</description><identifier>ISSN: 0141-0296</identifier><identifier>EISSN: 1873-7323</identifier><identifier>DOI: 10.1016/j.engstruct.2022.114714</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Bending fatigue ; Composite metallic yielding damper ; Cyclic loading test ; Cyclic loads ; Design optimization ; Earthquake dampers ; Earthquakes ; Energy dissipation ; Failure modes ; Performance evaluation ; Plastic deformation ; Preliminary designs ; Seismic activity ; Seismic energy ; Seismic performance ; Seismic response ; Seismic stability ; Shape optimization ; Shear ; Stress distribution</subject><ispartof>Engineering structures, 2022-10, Vol.268, p.114714, Article 114714</ispartof><rights>2022 Elsevier Ltd</rights><rights>Copyright Elsevier BV Oct 1, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c343t-cc957a678c915c8c724edeb2905a23652a7e386977393e70020dab2ba4b6f403</citedby><cites>FETCH-LOGICAL-c343t-cc957a678c915c8c724edeb2905a23652a7e386977393e70020dab2ba4b6f403</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Wang, Jiachen</creatorcontrib><creatorcontrib>Men, Jinjie</creatorcontrib><creatorcontrib>Zhang, Qian</creatorcontrib><creatorcontrib>Fan, Dongxin</creatorcontrib><creatorcontrib>Zhang, Zhiyong</creatorcontrib><creatorcontrib>Huang, Chao-Hsun</creatorcontrib><title>Seismic performance evaluation of a novel shape-optimized composite metallic yielding damper</title><title>Engineering structures</title><description>•A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed.•SCMYD can dissipate energy in multi-levels of earthquakes by shear and bending parts.•Optimization methods can eliminate stress concentrations and reduce material waste.•SCMYD is superior in energy consumption capacity and hysteresis stability.•SCMYD has the best performance when the yield load ratio of the shear part is 0.4. A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed to improve the energy dissipation capacity under multiple levels of earthquakes. The SCMYD was developed by combining the shear and the bending part in parallel, where the bending part is arranged symmetrically on both sides of the shear part to restrain the out-of-plane deformation under large displacements. In SCMYD, the yielding of the shear part is designed to consume seismic energy under minor earthquakes, while the collective plastic deformation of the shear and bending parts are used to dissipate inputting energy under major earthquakes. In addition, the shear and bending parts were shape-optimized to improve fatigue performance and material utilization. The corresponding design formulas of the SCMYD were also derived. Furthermore, the effectiveness of the optimization and the seismic performance of the SCMYD were evaluated by the cyclic loading test in terms of failure mode, combined hysteretic behavior, and energy dissipation. Additionally, the effect of the yield load ratio of the shear part (β) on the seismic performance of the SCMYD is discussed. Results demonstrated that the shear and bending parts are able to achieve a uniform stress distribution after optimization, while the design formula is also available for the preliminary design of SCMYD. Compared to conventional metallic yielding dampers, the SCMYD is superior with regard to hysteresis stability, loading and energy dissipation capacity. Besides, the SCMYD is capable of consuming energy under both minor and major earthquakes as intended and exhibits desirable seismic performance when the β value is 0.4. The research findings are expected to provide a reference for the design and real-world applications of the SCMYD.</description><subject>Bending fatigue</subject><subject>Composite metallic yielding damper</subject><subject>Cyclic loading test</subject><subject>Cyclic loads</subject><subject>Design optimization</subject><subject>Earthquake dampers</subject><subject>Earthquakes</subject><subject>Energy dissipation</subject><subject>Failure modes</subject><subject>Performance evaluation</subject><subject>Plastic deformation</subject><subject>Preliminary designs</subject><subject>Seismic activity</subject><subject>Seismic energy</subject><subject>Seismic performance</subject><subject>Seismic response</subject><subject>Seismic stability</subject><subject>Shape optimization</subject><subject>Shear</subject><subject>Stress distribution</subject><issn>0141-0296</issn><issn>1873-7323</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNqFkE1LxDAQhoMouK7-BgOeW_PRNu1xWfyCBQ_uUQhpOl1T2qYm6cL6641UvHqay_s-M_MgdEtJSgkt7rsUxoMPbtYhZYSxlNJM0OwMrWgpeCI44-doRWhGE8Kq4hJded8RQlhZkhV6fwPjB6PxBK61blCjBgxH1c8qGDti22KFR3uEHvsPNUFip2AG8wUN1naYrDcB8ABB9X2EnAz0jRkPuFFDBF6ji1b1Hm5-5xrtHx_22-dk9_r0st3sEs0zHhKtq1yoQpS6orkutWAZNFCziuSK8SJnSgAvi0oIXnEQ8XTSqJrVKquLNiN8je4W7OTs5ww-yM7ObowbJRO0IpznLIspsaS0s947aOXkzKDcSVIif0zKTv6ZlD8m5WIyNjdLE-IPRwNOem0gimqMg5htrPmX8Q1Y6oHv</recordid><startdate>20221001</startdate><enddate>20221001</enddate><creator>Wang, Jiachen</creator><creator>Men, Jinjie</creator><creator>Zhang, Qian</creator><creator>Fan, Dongxin</creator><creator>Zhang, Zhiyong</creator><creator>Huang, Chao-Hsun</creator><general>Elsevier Ltd</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7ST</scope><scope>8BQ</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>SOI</scope></search><sort><creationdate>20221001</creationdate><title>Seismic performance evaluation of a novel shape-optimized composite metallic yielding damper</title><author>Wang, Jiachen ; 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A novel shape-optimized composite metallic yielding damper (SCMYD) is proposed to improve the energy dissipation capacity under multiple levels of earthquakes. The SCMYD was developed by combining the shear and the bending part in parallel, where the bending part is arranged symmetrically on both sides of the shear part to restrain the out-of-plane deformation under large displacements. In SCMYD, the yielding of the shear part is designed to consume seismic energy under minor earthquakes, while the collective plastic deformation of the shear and bending parts are used to dissipate inputting energy under major earthquakes. In addition, the shear and bending parts were shape-optimized to improve fatigue performance and material utilization. The corresponding design formulas of the SCMYD were also derived. Furthermore, the effectiveness of the optimization and the seismic performance of the SCMYD were evaluated by the cyclic loading test in terms of failure mode, combined hysteretic behavior, and energy dissipation. Additionally, the effect of the yield load ratio of the shear part (β) on the seismic performance of the SCMYD is discussed. Results demonstrated that the shear and bending parts are able to achieve a uniform stress distribution after optimization, while the design formula is also available for the preliminary design of SCMYD. Compared to conventional metallic yielding dampers, the SCMYD is superior with regard to hysteresis stability, loading and energy dissipation capacity. Besides, the SCMYD is capable of consuming energy under both minor and major earthquakes as intended and exhibits desirable seismic performance when the β value is 0.4. The research findings are expected to provide a reference for the design and real-world applications of the SCMYD.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.engstruct.2022.114714</doi></addata></record>
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subjects Bending fatigue
Composite metallic yielding damper
Cyclic loading test
Cyclic loads
Design optimization
Earthquake dampers
Earthquakes
Energy dissipation
Failure modes
Performance evaluation
Plastic deformation
Preliminary designs
Seismic activity
Seismic energy
Seismic performance
Seismic response
Seismic stability
Shape optimization
Shear
Stress distribution
title Seismic performance evaluation of a novel shape-optimized composite metallic yielding damper
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