Seismic Performance of Y-Braced Frames with Steel Oval Plate Dampers

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题名:	Seismic Performance of Y-Braced Frames with Steel Oval Plate Dampers
作者:	陳易禮;Fernandus, Billy
贡献者:	土木工程學系
关键词:	Y 形支撐;橢圓形鋼板消能器;能量消散;抗震性能;Y-Brace;oval plate damper;energy dissipation;seismic performance
日期:	2024-08-20
上传时间:	2024-10-09 14:52:10 (UTC+8)
出版者:	國立中央大學
摘要:	結構和建築需求對於結構來說都是必不可少的。擁有長跨梁之結構需要使用支撐來增強結構，以在地震期間保持結構穩定。然而，支撐的使用通常不符合建築需求，因為其幾何形狀可能會阻礙空間使用。本研究提出並探討了安裝有不同幾何形狀橢圓形板阻尼器的 Y 型支撐系統，以解決這一問題。阻尼器作為保護結構構件之保險，通過塑性變形來耗散能量。進行了一系列測試以評估阻尼器的有效性。結果顯示，應用橢圓形板阻尼器可以有效提高 Y 型支撐框架的強度、勁度和能量消散能力。此外，建立了一個具有足夠精度的有限元模擬來估算所提出系統的性能，使得帶有橢圓形鋼板消能器的 Y 形支撐成為結構耐震加固之有效系統。 ;Both of structural and architectural requirements are essential for the structure. The structure with long-span beam requires strengthening to maintain the building stability under seismic excitation. However, the use of concentrically bracing member typically does not meet the architectural requirements due to the space occupancy. In this study, Y-Brace system installed with various geometries of oval plate dampers were proposed and investigated to solve the problem. The damper acts as a structural fuse to dissipate energy through the plastic deformation. A series of tests were carried out on Y-Braced frame with oval plate damper to evaluate the effectiveness of the proposed system. It was found from the results that the application of oval plate damper can effectively increase the strength, stiffness, and energy dissipation of Y-Braced frame. Furthermore, a finite element simulation with adequate accuracy was established to estimate the performance of the proposed system, making Y-Brace with oval plate dampers a competitive strengthening system for seismic resistant structure.
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