Mass ratio factor in control performance of optimum tuned liquid dampers

IF 1.8 3区工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY Structural Design of Tall and Special Buildings Pub Date : 2023-10-05 DOI:10.1002/tal.2063

Ayla Ocak, Gebrail Bekdaş, Sinan Melih Nigdeli

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Abstract

Summary Tuned liquid dampers provide structure control with the help of the liquid mass in tanks that are attached to the structure. The mass ratio affects the optimum tuned liquid damper (TLD) parameters. This study examines the effect of mass ratio on the control performance of TLD devices in providing seismic control of structures with different damping ratios. For this purpose, TLD devices with different mass ratios were placed on two different single‐story steel and reinforced concrete structure models, and their performance under earthquake excitation was investigated. TLD parameters for obtaining the optimum displacement level in the 0.5‐ and 1.0‐s structure natural period for both structure types were optimized with the Jaya algorithm (JA), which is a metaheuristic algorithm. By using the optimum TLD parameters, the structural displacement and total acceleration values were obtained by the critical earthquake analysis. When the results are examined, it is understood that TLD mass increase from a 20% mass ratio for both structure types and selected structure periods does not have a significant effect on TLD control performance.

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最佳调谐液体阻尼器控制性能的质量比因子

调谐液体阻尼器通过与结构相连的储罐中的液体质量来提供结构控制。质量比影响调谐液体阻尼器(TLD)的最佳参数。本研究考察了质量比对TLD装置控制性能的影响，以提供不同阻尼比结构的地震控制。为此，将不同质量比的TLD装置放置在两种不同的单层钢和钢筋混凝土结构模型上，研究了它们在地震作用下的性能。采用Jaya算法(JA)对两种结构类型在0.5‐s和1.0‐s结构自然周期内获得最佳位移水平的TLD参数进行了优化。利用最优TLD参数，通过临界地震分析得到结构位移和总加速度值。研究结果表明，无论是结构类型还是所选结构周期，TLD质量增加20%对TLD控制性能都没有显著影响。

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来源期刊

Structural Design of Tall and Special Buildings 工程技术-工程：土木

CiteScore

5.30

自引率

4.20%

发文量

审稿时长

6-12 weeks

期刊介绍： The Structural Design of Tall and Special Buildings provides structural engineers and contractors with a detailed written presentation of innovative structural engineering and construction practices for tall and special buildings. It also presents applied research on new materials or analysis methods that can directly benefit structural engineers involved in the design of tall and special buildings. The editor''s policy is to maintain a reasonable balance between papers from design engineers and from research workers so that the Journal will be useful to both groups. The problems in this field and their solutions are international in character and require a knowledge of several traditional disciplines and the Journal will reflect this. The main subject of the Journal is the structural design and construction of tall and special buildings. The basic definition of a tall building, in the context of the Journal audience, is a structure that is equal to or greater than 50 meters (165 feet) in height, or 14 stories or greater. A special building is one with unique architectural or structural characteristics. However, manuscripts dealing with chimneys, water towers, silos, cooling towers, and pools will generally not be considered for review. The journal will present papers on new innovative structural systems, materials and methods of analysis.