特殊抗彎與挫屈束制斜撐構架二元結構系統殘餘樓層側位移性能評估方法研究

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研究生：	Lou Mervin Tristan Pua Mahilum Lou Mervin Tristan Pua Mahilum
論文名稱：	特殊抗彎與挫屈束制斜撐構架二元結構系統殘餘樓層側位移性能評估方法研究 Residual-Drifts Performance Assessments of SMRF-and-BRBF Dual Structural Systems of Buildings
指導教授：	蕭博謙 Po-Chien Hsiao
口試委員:	汪向榮 Shiang-Jung Wang 陳沛清 Pei-Ching Chen 蕭博謙 Po-Chien Hsiao
學位類別：	碩士 Master
系所名稱：	工程學院 - 營建工程系 Department of Civil and Construction Engineering
論文出版年：	2023
畢業學年度：	111
語文別：	英文
論文頁數：	241
中文關鍵詞：	層間殘餘變位、層間殘餘變位反映譜、韌性、性能設計方法、二元結構系統
外文關鍵詞：	residual story drifts, residual drift spectra, resilience, performance-based design, dual frame system
相關次數：	點閱：211 下載：8
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上一筆

性能設計方法已被視為建築結構未來之設計趨勢方法，欲實現此目標，於設計方法中迫切需要建立建築結構耐震性能的預測及評估方法。由近年發生的大地震中可觀察到有需多建築結構物在遭受地震襲擊下產生相當程度的永久殘餘變形，因而被判定需要拆除重建，形成龐大社會負擔。為了提升結構物的韌性以及永續性，如何控制建築結構的殘餘層間側位移角形成結構設計過程中重要的環節。本研究旨在開發並提出可以有效預估以及緩解結構殘餘層間側位移角之設計策略與方法。並針對採用特殊抗彎矩構架(Special Moment Resisting Frame, SMRF)和挫屈束制斜撐構架(Buckling Restrain Brace Frame, BRBF)二元結構系統在實現控制殘餘層間側位移角方面的影響進行研究，以理想的三線性模型模擬二元結構系統中各樓層的強度曲線，以反映出構架系統中兩個明顯不同的降伏點特性。研究中首先透過非線性歷時分析，探討單自由度系統三線性曲線中各參數對系統殘餘變位需求的影響，並建立一套層間殘餘變位需求大小的評估公式方法。此外，更提出評估多樓層二元結構系統層間殘餘側位移角需求的評估方法，透過非線性歷時分析和多種常規非線性靜態側推分析方法評估三種樓高之原型建築物，含蓋由低層至高層的建築結構，以論證前述所開發評估殘餘層間側位移角需求的估算方法。各種非線性靜態側推分析皆與反應實際反應的原型建築物非線性歷時分析結果進行比較，以探討個靜態分析結果之準確性和可行性。

Performance-based design methods have been regarded as building structures' future seismic design methodology. To this end, the design community urgently demands the establishment of estimation and evaluation approaches of the seismic performance of the building structures. Recent seismic events have shown that many structures were likely to sustain large residual displacement and require demolition. To enhance the resiliency and sustainability of the buildings, controlling the building residual drifts is essential and must be addressed at the design stage. This research has studied and developed estimation and design strategies to evaluate and mitigate residual displacements. An investigation has been done on the effects of adopting Special Moment Resisting Frame and Buckling Restrained Brace Frame dual frame systems in achieving inherent self-centering mechanism to control residual inter-story drifts. The strengths of each story of the Special Moment Resisting Frame and Buckling Restrained Brace Frame dual frame system were idealized by trilinear curves, which reflect the two distinct yield points upon the significant yielding of the individual frame systems. The effects of various trilinear-curve parameters of Single Degreee of Freedom systems on the residual drift demands were first examined, and a set of estimation formulas for the residual deformation demands were then established. A method of assessing the inter-story residual drift demands of the multi-story dual frame systems was proposed. Three multi-degree of freedom prototype buildings covering low to high-rise structure were evaluated through Nonlinear Response History Analysis and various conventional Nonlinear Static Pushover Analysis to demonstrate the estimation method of assessing residual displacement demand. The accuracy and feasibility of the various Nonlinear Static Pushover Analysis were compared upon the considered prototype buildings and to Nonlinear Response History Analysis’s results.

Abstract    i
Acknowledgment    v
Table of Contents    vii
List of Figures    xi
List of Tables    xv
List of Equations    xvii
List of Abbreviations and Notations    xix
Chapter 1 Introduction    1
1    Research Background    1
2    Motivation    4
3    Research Objectives    4
4    Research Outline    6
Chapter 2 Literature Review    9
1    Performance-Based Design    9
2    Nonlinear Behavior of SDOFO under Seismic Excitation    13
2.1    Constant Ductility Assumption    14
2.2    Constant Strength Assumption    16
2.3    Early Construction of Residual Drift Spectrum    17
3    Force-Deformation Curve Idealization    22
4    Developed Residual Drift Mitigation Techniques on MDOF Buildings    23
4.1    BRBF-and-SMRF Dual Frame System in Mitigating Residual Drift    24
4.2    Effect of Hysteretic Curve Properties on Residual Drift Demand    25
Chapter 3 Analytical Investigation and Estimation of the Residual Drift of SDOF Systems    27
1    General    27
2    Modeling of Inelastic SDOFO    28
3    Conversion of MDOF reference structure into SDOFO    33
4    Analysis Procedure for Inelastic Response Spectra of Various SDOFO    36
5    Measurement of Residual Displacement    41
6    Seismic Excitation    42
7    The Behavior of Seismic Response to Variations of Trilinear Curve Parameters    44
7.1    Absolute Acceleration Spectra    45
7.2    Maximum Displacement Spectra    48
7.3    Ductility Spectra    51
7.4    Residual Drift Spectra    54
8    Formulation of Empirical Model in Assessing Residual Drift    65
8.1    Residual Drift Estimation    65
8.2    Regression Analysis of Residual Displacement Factor    69
8.3    Residual Drift Ratio    72
8.4    Empirical Formula Evaluation    77
Chapter 4 Seismic Performance Assessment of MDOF System    83
1    General    83
2    Design of Prototype Buildings    84
3    Numerical Model of Prototype Buildings    92
3.1    Modeling Assumptions    93
3.2    P-Δ Effect    96
3.3    Materials, Sections, and Elements    97
3.4    Buckling Restrained Brace Calibration    99
4    Methods in Performance Evaluation    101
4.1    Idealization of Force-Deformation Curve    102
4.2    Nonlinear Response History Analysis    108
4.3    Modal Pushover Analysis    110
4.4    Conventional Nonlinear Static Pushover    113
4.5    Residual Drift Estimation upon Pushover Analysis of MDOF building    116
5    MDOF Performance Evaluation    118
5.1    Target Drifts    119
5.2    General Response of NSPs    122
5.3    Bilinear vs. Trilinear Idealization    122
5.4    Comparison Between NSPs    124
5.5    Suggested Methods of Seismic Response Evaluation    124
5.6    Error Evaluation of Residual drift approximation    130
5.7    Simplified Assessment of Residual Inter-Story Drift Response    134
Chapter 5 Conclusions and Suggestions    139
1    The Behavior of Residual Drift to Various Trilinear Curve Configurations    139
2    Proposed Empirical Model    141
3    Residual Drift Assessment on MDOF structure    142
4    Suggestions    144
References    147
Appendix A: Absolute Acceleration Spectra    153
Appendix B: Maximum Displacement Spectra    171
Appendix C: Ductility Spectra    189
Appendix D: Residual Drift Spectra    207
Appendix E: Residual Displacement Factor    225


                                

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