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姓名 周誌桓(chih-huan chou) 查詢紙本館藏 畢業系所 土木工程學系 論文名稱 隅撐鋼結構耐震性能研究
(SEISMIC PERFORMANCE OF STEEL KNEE BRACED FRAME STRUCTURES)相關論文 檔案 [Endnote RIS 格式]
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至系統瀏覽論文 ( 永不開放)
摘要(中) 現行之鋼結構建築主要採用抗彎構架系統來設計，該系統具有極佳的系統韌性容量，然因其側向勁度較低，在承受地震載重時會產生較大的側向變形，就功能設計考量而言，過大之位移將限制其應用性，為減低結構變形，工程上常以加大梁柱桿件尺寸因應之，此法不僅增加上部結構之建造費用，亦因自重之增加，增大基礎設計之需求，減低工程設計之經濟效益。本研究以具有良好承載效能之斜撐桿件加於鋼結構梁柱角隅處，針對此隅撐鋼結構在反覆載重下之承載效能，進行探討，並由此結構之承載特性，研擬可行之細部改善設計，本研究中以切削鋼板置於梁與隅撐交界處，藉由此消能機制改善隅撐鋼結構之承載效能，詴驗結果顯示，應用此消能機制隅撐鋼結構之強度及消能能力均有大幅提昇。本研究中亦應用有限元素分析評估構架受反覆載重之變形及受力情形， 藉由詴驗資訊及分析結果推求合理之簡化分析模式，以供設計分析參考。
摘要(英) This study focused on the experimental evaluation and FEM analysis of the seismic performance of steel knee braced frame structures with energy dissipation mechanism. A series of cyclic loading tests were conducted on the steel special moment resisting frame and the proposed knee braced frames. Test results validated that the demand in the beam-column connection design was alleviated by the proposed design method. Test results also showed that the strength and stiffness of the proposed design were effectively enhanced. Comparisons in energy dissipation between the steel special moment resisting frame and the knee braced moment resisting frames further justified the applicability of the proposed method. Finally, a simplified finite element model was proposed for the evaluation of the performance of the structurts.
關鍵字(中) ★ 隅撐鋼結構
★ 有限元素分析
★ 耐震設計關鍵字(英) ★ Seismic resistant design
★ Knee braced frame
★ Finite element analysis論文目次 中文摘要 ................................................................................................................ i
ABSTRACT ......................................................................................................... ii
誌謝 ...................................................................................................................... iii
目錄 ....................................................................................................................... v
表目錄 .................................................................................................................. ix
圖目錄 ................................................................................................................... x
照片目錄 .......................................................................................................... xviii
符號說明 ............................................................................................................ xxi
第一章 緒論 ...................................................................................................... 1
1-1 前言 ........................................................................................... 1
1-2 研究動機及目的 ....................................................................... 2
1-3 研究步驟與內容 ....................................................................... 2
第二章 文獻回顧 .............................................................................................. 4
2-1 國內外相關研究 ....................................................................... 4
2-1-1 抗彎構架系統 ................................................................ 4
2-1-2 隅撐抗彎構架系統 ........................................................ 6
2-2 鋼結構設計相關規定 ............................................................... 7
2-2-1 強柱弱梁設計 ................................................................ 7
2-2-2 柱強度要求 .................................................................... 8
2-2-3 梁斷面要求 .................................................................... 8
2-2-4 梁柱接頭 ........................................................................ 9
2-2-5 梁柱腹板交會區設計 .................................................. 10
2-2-6 斜撐設計 ...................................................................... 10
第三章 理論分析 ............................................................................................ 12
3-1 構架勁度評估 ......................................................................... 12
3-1-1 抗彎構架系統 .............................................................. 12
3-1-2 隅撐抗彎構架系統 ...................................................... 13
3-2 曲率評估 ................................................................................. 16
第四章 實驗規劃過程與結果 ........................................................................ 17
4-1 實驗規劃與參數 ..................................................................... 17
4-1-1 實驗規劃 ...................................................................... 17
4-1-2 詴驗參數 ...................................................................... 17
4-2 實驗架設 ................................................................................. 18
4-3 詴體組裝 ................................................................................. 19
4-4 加載方式 ................................................................................. 21
4-5 抗彎構架結構反應與分析 ..................................................... 21
4-5-1 半剛性接合詴驗(MF-S) .............................................. 21
4-5-2 剛性接合詴驗(MF-R) .................................................. 22
4-6 隅撐抗彎構架結構反應與分析(KF詴體) ............................ 22
4-7 配置消能鋼板隅撐抗彎構架結構反應與分析 .................... 23
4-7-1 KF120x12詴驗 ............................................................ 23
4-7-2 KF140x12詴驗 ............................................................ 24
4-7-3 KF160x12詴驗 ............................................................ 25
4-7-4 KF140x14詴驗 ............................................................ 26
4-7-5 KF120x16詴驗 ............................................................ 26
4-7-6 KF140x12 (CP) 詴驗 ................................................... 27
第五章 實驗結果分析討論 ............................................................................ 29
5-1 隅撐抗彎構架彎矩和曲率關係 ............................................. 29
5-2 消能鋼板處彎矩和角度關係 ................................................. 29
5-3 構架強度分析 ......................................................................... 30
5-3-1 抗彎構架 ...................................................................... 30
5-3-2 隅撐抗彎構架 .............................................................. 30
5-3-3 有效寬度 ...................................................................... 31
5-3-4 面積和慣性矩 .............................................................. 31
5-3-5 Be/t 和慣性矩 .............................................................. 31
5-3-6 消能鋼板加裝蓋板之必要性 ...................................... 32
5-4 能量消散 ................................................................................. 32
5-4-1 抗彎構架 ...................................................................... 32
5-4-2 隅撐抗彎構架 .............................................................. 33
5-4-3 Be/t和慣性矩 ............................................................... 33
第六章 實驗結果與有限元素分析比較 ....................................................... 35
6-1 有限元素分析 ......................................................................... 35
6-2 抗彎構架結構模型建立 ......................................................... 36
6-3 隅撐抗彎構架結構模型建立 ................................................. 36
6-4 梁元素模型建構 ..................................................................... 37
6-4-1 結構模型 ...................................................................... 38
6-4-2 旋轉彈簧模型建構 ...................................................... 38
6-5 強度與能量消散分析比較 ..................................................... 39
6-5-1 抗彎構架 ...................................................................... 39
6-5-2 隅撐抗彎構架強度、能量分析比較 .......................... 39
6-5-3 配置消能鋼板隅撐抗彎構架強度、能量分析比較 .. 40
第七章 結論 .................................................................................................... 41
參考文獻 ............................................................................................................. 42
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43
[9] McMullin, K. M., Astaneh-Asl, A., “Steel Semirigid Column-Tree Moment Resisting Frame Seismic Behavior”, Journal of Structural Engineering, ASCE, Vol.129,No.9,pp.1243-1249(2003)
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指導教授 許協隆(Hsieh-Lung Hsu) 審核日期 2009-7-27 推文 plurk
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