具有漸近破壞機制之鋼結構斜撐構架耐震性能研究;Seismic Performance of Steel Braced Frames With Progressive Failure Mechanism

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Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/73798

Title:	具有漸近破壞機制之鋼結構斜撐構架耐震性能研究;Seismic Performance of Steel Braced Frames With Progressive Failure Mechanism
Authors:	艾譜圖;Sarassantika, I Putu Ellsa
Contributors:	土木工程學系
Keywords:	阻尼器;能量消散;漸進加載;耐震性能;斜撐構架;Damper;energy dissipation;progressive loading;seismic performance;braced frame
Date:	2017-08-02
Issue Date:	2017-10-27 12:17:58 (UTC+8)
Publisher:	國立中央大學
Abstract:	一種新式的被動型阻尼器，亦即脊椎阻尼器，由消能板、間隙及漸進加載機制組成，以提高構架之性能。脊椎阻尼器位於斜撐之兩側，並連接到半剛性構架，形成斜撐構架。漸進加載機制由標準螺栓孔和各種長度之滑槽組成，用於控制各種消能板的啟動。該設計不僅增強了抗彎構架之強度、剛度及能量消散。此外，該設計提供阻尼器消能板部分失效之方案，因此有效地維持結構之性能。本研究以該阻尼器進行一系列脊椎阻尼器和斜撐構架的循環加載試驗。試驗結果表明，構架之強度、剛度及能量消散得到有效的提高。亦可發現，漸進加載機制的構架變形能力得到了充分的改善，可證明該方法的適用性。 ;A new type of passive damper, namely backbone damper, consisting of energy plates, gap system and progressive loading mechanism was proposed to improve the performance of framed structures. The backbone dampers were located at the two sides of a brace and were connected to the semi-rigid frame, forming a braced frame. The progressive loading mechanism is composed of standard bolt holes and slots with various lengths to control the initiation of various energy plates. This design not only enhanced the strength, stiffness and energy dissipation of the moment frame. In addition, the design provided a scheme to allow partial failure of the energy plates, thus effectively sustained the performance of the structure. A series of cyclic loading tests on the backbone dampers and braced frames with the proposed dampers were conducted. Test results showed that the strength, stiffness and energy dissipation of the framed structures were effectively improved. It is also validated from the tests that the deformation capacity of frames with progressive loading mechanism was adequately improved, thus justified the applicability of the proposed method.
Appears in Collections:	[Graduate Institute of Civil Engineering] Electronic Thesis & Dissertation

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