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研究生:陳墇良
研究生(外文):Chang-Liang Chen
論文名稱:以桿件位移反應模式評估鋼筋混凝土抗彎構架之耐震能力
論文名稱(外文):Using Structural Component Deformation Response Model to Estimate the Seismic Capacity of Reinforce Concrete Moment-Resisting Frames
指導教授:施明祥施明祥引用關係
指導教授(外文):Ming-Hsiang Shih
學位類別:碩士
校院名稱:國立高雄第一科技大學
系所名稱:營建工程所
學門:工程學門
學類:土木工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:148
中文關鍵詞:P-△效應耐震能力評估構架層間位移
外文關鍵詞:Seismic Capacity AssessmentFrame''s Interstorey DriftsP-Delta Effect
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欲得到正確、可靠的建築物耐震能力評估成果,必須能準確的預測結構桿件之非線性行為,而建築物會在地震中倒塌,係由於結構桿件之過應變所致。本文應用現有鋼筋混凝土桿件在反覆荷重下的非線性行為模式,進行純鋼筋混凝土低層構架之耐震能力評估法的發展,經融入由震後觀測所得之施工行為因素後,將建築物之耐震能力合理的以基底剪力容量及極限位移容量表示,足以反應結構物之過應變破壞容許量。
而建築物在大地震時,其非線性行為反應,將可能引起顯著之P-△效應,導致建築物因失穩而倒塌。本文先分析靜態與動態P-△效應之不同特性,再提出評估動態P-△效應之門檻圖,以方便評估建築物是否為動態P-△效應所控制。
最後,本文分別應用兩種現有之耐震評估法與本文所提出之評估方法進行同一實例評估;經比較評估成果,得到本文所提評估法之合理性與簡易性之結論。
As is known, structural and nonstructural damage due to earthquake is a result of excessive strains. In most cases the reason of structures seismic collapse is a direct function of the maximum interstorey drifts, which occur during strong seismic ground motions. Hence, it is most wanted to predict the seismic response of structural component nonlinear deformation behavior precisely for providing accurate and reliable result in the seismic capacity assessments of building. The objective of this paper is to suggest a method of estimating seismic capacity of low-rise R.C.buildings based on the component interstorey drifts behavior model, under cyclic load presented in the accompany paper【32】derived from experimental and statistical studies. Since the method suggesting by this study combines the effect of strength and deformation, including the influence of construction factors collected from the observation of the Chi-Chi earthquake that attacked Taiwan in 1999, to describe the seismic capacity of buildings. That is adequate to characterize the building damage from excessive strains.

When the inelastic behavior response in the structural system to severe ground motion is considered, the potential for instability from axial force effect, i.e. p-delta effect, can become a critical consideration. An analytical study was carried out first in this paper to illustrate the difference of the structural instability under static and dynamic condition, Furthermore the instability threshold diagram, a relationship of yield minimum base shear coefficients to prevent instability to a function of key structural and ground motion parameters, was also presented for carrying out an explicit stability check of the p-delta effect in the seismic resistance estimation of the existing building.

Finally, three seismic resistance estimation methods, including the one presented in this study, are applied to the seismic capacity assessments of a practice case in this paper respectively. Through the comparison of the assessments result mentioned above, it shows that the estimation method presented in this study has the advantage of ease and correctness.
目 錄
                      
中文提要I
英文提要II
誌謝IV
目錄V
表目錄VIII
圖目錄IX
符號說明XII


第一章 導論1
1.1 研究目的3
1.2文獻回顧4
1.2.1結構系統可靠度估算法4
1.2.2數學變數之平均值估算法6
1.2.3 討論12
1.3研究內容14

第二章 921地震對耐震評估方向之啟示16
2.1 921地震地動特性與房屋結構之破壞關係 16
2.2 鋼筋混凝土房屋結構的地震破壞模式與結構系統關係 18
2.3 鋼筋混凝土房屋結構遭受地震破壞原因的因應評估對策20

第三章 以構件位移反應模式發展鋼筋混凝土抗彎構架之耐震評估法22
3.1位移式耐震評估法之架構23
3.2 鋼筋混凝土桿件在降伏及極限時之變形模式26
3.2.1 鋼筋混凝土結構桿件之降伏及極限曲率定義27
3.2.2 鋼筋混凝土結構桿件之降伏及極限曲率模式27
3.2.3 鋼筋混凝土結構梁-柱桿件之撓曲剛度模式33
3.3 建立鋼筋混凝土抗彎構架之節點力-位移容量曲線34
3.3.1以構件變形模式建立構架節點變位與側力關係38
3.3.2建立多層構架層間變位與層間剪力關係之程序42

第四章 P-Delta二次彎矩效應分析50
4.1靜態P-Delta效應與穩定係數(Θ)定義50
4.2 動態P-Delta效應 52
4.3動態P-Delta效應之控制門檻52
4.3.1設計反應譜相容之設計地震歷時56
4.3.2 建立P-Delta效應門檻圖56

第五章 耐震能力評估實例分析 66
5.1 結構概述66
5.2 以「鋼筋混凝土建築物耐震能力評估法及推廣」之詳細評
估法進行評估68
5.3 以ATC-40 容量需求譜評估法進行評估87
5.4 使用本文發展的方法評估 93
5.5 評估結果之驗證與結論121

第六章 結論124
參考文獻127
附錄A:Gendyn input file (with p-δ effect, a=0.18g)131
附錄B:Gendyn input file (without p-δ effect, a = 0.385 g)133
附錄C: IDARC 程式輸入檔135
附錄D:可靠度評估法概述140
附錄E:碩士論文考試委員意見表146
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