博碩士論文 100322022 詳細資訊




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姓名 楊智凱(Zhi-kai Yang)  查詢紙本館藏   畢業系所 土木工程學系
論文名稱 具自復位梁柱接頭隅撐鋼結構耐震性能研究
(Seismic Performance of Knee Braced Frames with Self-Centering Beam-Column Joints)
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摘要(中) 隅撐抗彎構架為近年來之研究議題之一,其雖可改善抗彎構架勁度不足之問題,然因隅撐構件受軸壓力時會產生挫屈現象,造成結構強度降低,為改善此問題,本研究研擬以具自復位梁柱接頭與自復位隅撐配置於抗彎構架,並針對其進行反覆載重試驗,以界定其耐震性能。研究結果顯示,梁柱接頭若配置摩擦消能機制可獲較佳消能效果,其約為鋼棒消能量之3倍。研究中亦發現同時配置自復位梁柱接頭與自復位隅撐之構架,不僅可有效降低梁柱接頭之受力,亦可增加構架之強度及勁度。另構架在預力系統保持彈性階段時,皆具有良好之自復位能力,有效降低結構之殘餘變形,研究結果證實,具自復位梁柱接頭與自復位隅撐之構架系統可藉良好之預力結合及有效之消能機制,達到提升結構耐震性能之目的。
摘要(英) Knee braced moment resisting frame (KBRF) has been developed in recent years. It has been demonstrated that the stiffness and strength of KBRF can be significantly improved when knee braced members are used. However, buckling of knee brace member at large deformation causing strength reduction is a concern when the KBRF design is adopted. This study focused on the performance enhancement of KBRFs by using the combinations of self-centering knee braces and self-centering beam-to-column connections. A series of cyclic loading tests on the self-centering KBRF structures with various magnitudes of post-tension in the brace members and beam-to-column connections were conducted.
It was found from the tests that the strength and deformation capabilities of the self-centering KBRFs were effectively sustained. It is also observed from the tests that the energy dissipation of the KBRFs was significantly enhanced when friction energy dissipation plates were used.
Test results confirmed that the self-centering capacity of the structures could be effectively sustained as long as the post-tension mechanism remained elastic. It is suggested from the tests that longer post-tension bars be adopted in the self-centering knee braces and connections, so that higher structural deformation capability could be achieved.
關鍵字(中) ★ 自復位接頭
★ 自復位隅撐
★ 耐震設計
關鍵字(英) ★ Self-centering joint
★ Self-centering knee Braces
★ Seismic Performance
論文目次 摘要………………………………………………………………………I
ABSTRACT……………………………………………………………II
致謝……………………………………………………………………III
目錄……………………………………………………………………V
表目錄…………………………………………………………………X
圖目錄………………………………………………………………XI
照片目錄…………………………………………………………XIX
第一章 緒論………………………………………………………1
1-1 前言………………………………………………………………1
1-2 研究動機與目的…………………………………………………3
1-3 研究方法與內容…………………………………………………4
1-4 論文架構…………………………………………………………5
第二章 文獻回顧………………………………………………………6
2-1 國內外相關研究…………………………………………………6
2-1-1 抗彎構架系統………………………………………………6
2-1-2 梁柱接頭相關研究…………………………………………7
2-1-3 隅撐構架相關研究…………………………………………8
2-1-4 預力結構相關研究…………………………………………9
2-2 鋼結構設計相關規定…………………………………………12
2-2-1 強柱弱梁設計……………………………………………12
2-2-2 梁斷面要求………………………………………………13
2-2-3 梁柱腹板交會區設計……………………………………14
2-2-4 含被動消能系統建築物之設計…………………………15
第三章 理論分析……………………………………………………17
3-1 前言……………………………………………………………17
3-2 預力梁柱接頭理論……………………………………………17
3-3 預力接頭摩擦理論……………………………………………20
3-4 預力接頭理論強度……………………………………………21
3-5 預力接合勁度…………………………………………………24
3-5-1 梁之等效勁度KB推導…………………………………25
3-5-2 預力鋼棒之等效勁度KPT推導……………………………25
3-5-3 消能鋼棒之等效勁度KED推導……………………………27
第四章 實驗規劃與流程……………………………………………29
4-1 前言……………………………………………………………29
4-2 實驗規劃………………………………………………………29
4-2-1 自復位梁柱接頭構件試驗………………………………29
4-2-2 構架試驗…………………………………………………30
4-3 研究參數………………………………………………………31
4-3-1 自復位機制………………………………………………31
4-3-2 鋼棒消能機制……………………………………………32
4-3-3 摩擦消能機制……………………………………………32
4-4 試體標號及試驗群組…………………………………………32
4-4-1 自復位梁柱接頭構件試驗………………………………32
4-4-2 構架試驗…………………………………………………34
4-5 試體製作………………………………………………………34
4-6 實驗設備………………………………………………………35
4-7 試驗方法………………………………………………………36
4-7-1 自復位梁柱接頭構件試驗方法…………………………36
4-7-2構架試驗方法……………..………………………………37
4-8 加載方式………………………………………………………38
第五章 實驗觀察與規劃……………………………………………39
5-1 前言……………………………………………………………39
5-2 實驗觀察………………………………………………………39
5-2-1 自復位梁柱接頭構件試驗………………………………39
5-2-1-1 SS系列……………………………………………39
5-2-1-2 SL系列………………………………………………45
5-2-1-3 LL系列………………………………………………48
5-2-1-4 F系列………………………………………………50
5-2-1-5 小結………………………………………………51
5-2-2 單層單跨構架試驗………………………………………52
5-2-2-1 半剛性接頭構架…………………………………52
5-2-2-2 自復位接頭構架……………………………………54
5-2-2-3 小結…………………………………………………59
第六章 結果分析與比較………………………………………………61
6-1 前言……………………………………………………………61
6-2 強度分析……………………………………………………61
6-2-1 自復位梁柱接頭構件試驗………………………………61
6-2-2 單層單跨構架試驗………………………………………63
6-3 勁度分析………………………………………………………64
6-3-1 自復位梁柱接頭構件試驗………………………………64
6-3-2 單層單跨構架試驗………………………………………66
6-4 能量消散分析………………………………………………67
6-4-1 自復位梁柱接頭構件試驗………………………………67
6-4-2 單層單跨構架試驗………………………………………69
6-5 構架承載行為分析…………………………………………70
6-5-1 梁柱接頭受力關係………………………………………70
6-5-2 樓層位移與隅撐開合位移關係…………………………71
6-6 結語……………………………………………………………71
第七章 結論與建議…………………………………………………73
7-1 結論……………………………………………………………73
7-2 建議…………………………………………………………74
參考文獻……………………………………………………………75
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指導教授 許協隆(Hsieh-Lung Hsu) 審核日期 2013-7-22
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