支撑框架结构的抗震性能耦合彎板阻尼器

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艾飛(Alfin Suprayuygo) 查詢紙本館藏

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土木工程學系

論文名稱

支撑框架结构的抗震性能耦合彎板阻尼器
(Seismic Performance of Braced Frames with Coupled Bending Plate Dampers)

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摘要(中)

耦合彎板阻尼器是適用於支撐框架中藉遲滯韌性彎曲產生消散地震能量的新設計。耦合彎曲板的反應取決於其非彈性階段之剛度和屈服強度。該耦合板的塑性彎曲取代了拉伸屈服和彈性挫屈。此有效增加能量消散。
在大地震運動下，耦合彎板阻尼器具完整和穩定的遲滯行為，在拉伸和壓縮，提供顯著耗能和延展性。相對於其他替代的地震能量消散系統，此耦合彎板阻尼器具有容易更換及拉壓載重下穩定行為之特性。在這項研究中，進行了一系列關於耦合彎板阻尼器之循環荷載試驗和支撐框架之反覆載重試驗。試驗結果證實，此設計有效提升結構之強度、剛度、變形能力和能量消散，因此為一有效之耐震設計。

摘要(英)

The coupled bending plate dampers is a new design of non-buckling braced system that applies on the braced frames to dissipate seismic energy through the hysteretic yielding within ductile bending plates. The hysteric response of a coupled bending plates depends on the inelastic behavior characterized by a post-yield increase in stiffness and strength at large displacements. The plastic bending of the coupled plates replaces the tensile yielding and inelastic buckling of traditional ductile braces. This gives a symmetrical hysteresis with increased energy dissipation.
Under large seismic motions, the full and stable hysteretic behavior of the coupled bending plate dampers, which yields in both tension and compression, provides significant energy dissipation and ductility. Furthermore, when compared to other alternative seismic energy dissipation systems on the braced frames, the coupled bending plate dampers have advantages such as easy replacement following an earthquake and disallow damages in the main braced members. In this study, a series of cyclic loading tests on the coupled bending plate dampers and braced frames with the proposed dampers were conducted. The test specimens exhibited significant strength, stiffness, deformation capacity and energy dissipation which justified the effectiveness of the proposed design method.
Keywords: Coupled bending plate dampers, energy dissipation, seismic performance, braced frame.

關鍵字(中)

★ 耦合彎板阻尼器
★ 耗能
★ 抗震性能
★ 支撐框架

關鍵字(英)

★ Coupled bending plate dampers
★ energy dissipation
★ seismic performance
★ braced frame

論文目次

ABSTRACT i
TABLE OF CONTENTS iii
LIST OF TABLES vii
LIST OF FIGURES viii
CHAPTER I INTRODUCTION 1
1.1. Background 1
1.2. Motivations 2
1.3. Objectives 2
1.4. Outlines 3
CHAPTER II LITERATURE REVIEW 4
2.1. Bending of Thick Steel Plates 4
2.2. Steel Frames with Semi-Rigid Connection 5
2.3. Concentrically Braced Frame 5
2.4. Concentrically Braced Frame with Eccentric Gusset 6
2.5. Top and Seat Angle 7
CHAPTER III METHODOLOGY 10
3.1. Theory 10
3.1.1. Strong Column Weak Beam Philosophy 10
3.1.2. Bolted Top and Seat Angle Connection 11
3.1.3. Double Web Angle with Slot Connection 12
3.1.4. Coupled Bending Plate Dampers 12
3.1.4.1. Braced Frame of Coupled Bending Plate Dampers 12
3.1.4.2. Bending Capacity of Beam 12
3.1.5. Hinge Gussets and High Strength Bolt 13
3.1.6. Strength of Coupled Bending Plate Dampers (Derivation of development equation) 14
3.2. Finite Element Analysis 16
3.2.1. Analytical Model for Plate Simulation 16
3.2.2. Analytical Model for Frame Response Simulation 18
3.3. Mechanism of Damper 19
CHAPTER IV EXPERIMENTAL PROGRAM 21
4.1. General 21
4.2. Specimen Design 21
4.2.1. Set-Up for Component Tests 23
4.2.2. Set-up for Braced Frame Tests 23
4.3. Details of Specimens 23
4.3.1. Brace member 23
4.3.2. Component Test 24
4.3.3. Semi Rigid Moment Frame 24
4.3.4. Braced Frame 25
4.4. Materials 26
4.5. Specimen Construction 26
4.6. Instrumentation 26
4.6.1. Strain Gauges 26
4.6.2. Transducers 27
4.6.3. Data Acquisition System 27
4.7. Lateral Support 27
4.8. Loading Protocol 27
CHAPTER V RESULT AND OBSERVATION 28
5.1. General 28
5.2. Experimental Observations 28
5.2.1. Specimen CTS-6 28
5.2.2. Specimen CTS-9 29
5.2.3. Specimen CTS-12 30
5.2.4. Specimen CTS-15 31
5.2.5. Specimen CTM-6-6 31
5.2.6. Specimen CTM-9-6 32
5.2.7. Specimen MF-9 33
5.2.8. Specimen MF-12 34
5.2.9. Specimen MF-9-B-9 35
5.2.10. Specimen MF-9-B-12 36
5.2.11. Specimen MF-12-B-9 37
5.2.12. Specimen MF-12-B-12 38
CHAPTER VI COMPARISONS AND DISCUSSIONS 40
6.1. General 40
6.2. Comparisons of Strength Between Experimental and Analytical Results 40
6.2.1. Results from Derived Equation 40
6.2.2. Finite Element Simulation 41
6.3. Stiffness 42
6.4. Strength 42
6.5. Deformation Capacity 43
6.6. Energy Dissipation 44
6.7. Equivalent Viscous Damping Ratios of Component 44
6.8. Performance Evaluations 45
6.9. Design Recommendations 45
CHAPTER VII CONCLUSIONS 47
7.1. General 47
7.2. Suggestions 48
REFERENCES 49
TABLES 51
FIGURES 59

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指導教授

許協隆(Hsieh-Lung Hsu)

審核日期

2016-8-25

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