頁籤選單縮合
題名 | 含消能鋼棒之預力鋼造梁柱接頭遲滯行為=Cyclic Response of Post-Tensioned Steel Beam-to-Column Connections with Energy Dissipating Bars |
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作 者 | 周中哲; 楊文嘉; 蔡克銓; | 書刊名 | 中國土木水利工程學刊 |
卷期 | 19:1 2007.03[民96.03] |
頁次 | 頁45-55 |
分類號 | 441.563 |
關鍵詞 | 預力鋼造梁柱接頭; 自行復位; 消能鋼棒; Post-tensioned steel beam-to-column connection; Recentering response; Energy-dissipating bar; |
語文 | 中文(Chinese) |
中文摘要 | 預力梁柱接頭使用預力鋼腱與消能元件將梁與柱結合,藉由鋼腱中之預力而使接頭具自行復位(即殘餘變位小)的能力,並藉由消能元件提供接頭遲滯消能的能力。本研究將此技術應用在純鋼骨架構之梁柱接頭,並利用在梁上下翼板裝設消能鋼棒消能,藉由三組梁柱接頭反覆載重實驗與分析探討其耐震行為,發現(1)鋼梁可達0.04弧度層間側位移角而無強度遞減情形;(2)挫屈束制消能鋼棒可有效的消釋能量;(3)消能鋼棒之殘餘力會造成預力接頭之解壓彎矩衰減;及(4)將傳統樓版於柱心處垂直梁軸向切開可使預力系統之反應機制正常運作。預力接頭之反覆載重行為亦可以本文提出的解析模型預測。 |
英文摘要 | Strands were placed along each side of the steel beam web, passing through the steel column to provide a precompression between the beams and column, leading to a recentering response of the connection. The connection also used top and bottom steel bars to increase the moment capacity and energy dissipation capacity. One of the subassemblies had a concrete slab with discontinuity at the centerline of the column. Cyclic tests were conducted on three full-scale subassemblies to investigate the behavior of post-tensioned steel beam-to-column connections. Test results showed that (1) the steel beam could reach 4% interstory drift without strength degradation, (2) the bucking-restrained steel bars were effective in dissipating energy after a gap opening at the interface between the beam an column, (3) the residual forces in the bars gradually reduced the decompression moment of the connection, and (4) discontinuity of a slab at the centerline of the column ensured recentering capability of the connection. A simplified analysis procedure was used to perform correlation studies, indicating that the force-deformation relationships of the subassemblies could be reliably predicted when both the effects of the steel bars and post-tensioned strands were considered in the mode. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。