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研究生: Hugo Andy Soleman
Hugo Andy Soleman
論文名稱: 近梁底穿孔往負載重行為
Cyclic Response of RC Flexural Members with opening Close to Fixed End
指導教授: 鄭敏元
Min-Yuan Cheng
口試委員: 黃世建
Shyh-Jiann Hwang
廖文正
Wen-Cheng Liao
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: 140
外文關鍵詞: plastic hinge region, shear mechanism
相關次數: 點閱:203下載:33
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ABSTRACT

An experimental research was conducted to evaluate the behavior of reinforced concrete beam member with an opening in the plastic hinge region. The test parameter investigated in this study is the distance of the opening from the concrete base block. A total of three cantilever beam specimens were tested under displacement reversals. All of the test specimens were designed in compliance with ACI 318-19 (ACI Committee 318,2019). Test results indicate the specimen loss of strength was primarily associated by the shear mechanism. Design parameters that influenced the specimen overstrength, Vpeak/Vmn, were discussed. Effective stiffness of each deformation component was estimated. A simple model to predict the shear strength based on the buckling of the compression bar was proposed.

TABLE OF CONTENTS ABSTRACT i ACKNOWLEDGEMENT ii TABLE OF CONTENTS iii LIST OF TABLES v LIST OF FIGURES vi NOTATION ix CHAPTER 1 INTRODUCTION 1 1.1 BACKGROUND 1 1.2 RESEARCH MOTIVATION 2 1.3 RESEASCH OBJECTIVE 2 1.4 RESEARCH OBJECTIVE 3 CHAPTER 2 LITERATURE REVIEW 5 2.1 AIJ-1999 CODE FOR SHEAR STRENGTH OF BEAM WITH OPENING 5 2.2 AIJ 2010 CODE FOR SHEAR STRENGTH OF BEAM WITH OPENING 8 2.1.1 Allowable Shear Capacity for Long-Term Loading Around the Opening 9 2.1.2 Allowable Shear Capacity for Short-Term Loading Around an Opening 10 2.1.3 Securing Safety in Large-Scale Earthquakes 11 2.3 RELATED LITERATURE FROM MANSUR AND TAN (1999) 13 3.3.1 Beam-type Failure 14 3.3.2 Frame-type Failure 15 CHAPTER 3 EXPERIMENTAL PROGRAM 17 3.1 SPECIMEN DESIGN 17 3.2 SPECIMEN CONSTRUCTION 24 3.3 EXPERIMENTAL SETUP AND TEST INSTRUMENTATION 27 3.3.1 Experimental Setup 27 3.3.2 Data Recordings and Instrumentation 29 CHAPTER 4 EXPERIMENTAL RESULTS 37 4.1 MATERIAL PROPERTIES 37 4.1.1 Concrete 37 4.1.2 Steel Reinforcement 44 4.2 SPECIMEN RESPONSES 47 4.2.1 Damage Progression 47 4.2.2 Load-Displacement Response 63 CHAPTER 5 ANALYSIS RESULT 67 5.1 DEFORMATION COMPONENTS 67 5.1.1 Definition 67 5.1.2 Deformation Component Result 72 5.2 FAILURE MODE MECHANISM 74 5.2.1 Failure Mode Mechanism of S1 74 5.2.1 Failure Mode Mechanism of S2 75 5.2.1 Failure Mode Mechanism of S3 76 5.3 SHEAR STRENGTH 77 5.3.1 Shear Strength Capacity According to AIJ-1999 77 5.3.2 Shear Strength Capacity According to AIJ-2010 80 5.3.3 Strut-and-Tie Method 82 5.3.4 Proposed Model 89 5.4 STIFFNESS 94 5.4.1 Flexural Stiffness 94 5.4.2 Shear Stiffness 99 5.4.3 Strain Penetration 101 5.4.4 Sliding 103 CHAPTER 6 CONCLUSION 105 REFERENCES 107 APPENDIX A 111

REFERENCES
1. ACI Committee 318, 2019, “Building Code Requirements for Structural Concrete and Commentary (ACI 318-19), “American Concrete Institute, Farmington Hills, Michigan.

2. ASCE, 2017, “Minimum Design Loads and Associated Criteria for Buildings and Other Structures (ASCE/SEI 7-16)”, American Society of Civil Engineers, Reston, Virginia.

3. ASTM, 2014, “Standard Test Method for Static Modulus of Elasticity and Poisson’s ratio of Concrete in Compression (ASTM C4699/C469M-14)”, American Society for Testing and Materials, West Conshohocken, Pennsylvania.

4. ASTM, 2020, “Standard Test Methods for Compressive Strength of Cylindrical Concrete Specimens (ASTM C39/C39M-20)”, American Society for Testing and Materials, West Conshohocken, Pennsylvania.

5. ASTM, 2022, “Standard Test Methods and Definitions for Mechanical Testing of Steel Products (ASTM A370-22)”, American Society for Testing and Materials, West Conshohocken, Pennsylvania.

6. AIJ, 1999, “Design Guideline for Earthquake Resistant Reinforced Concrete Buildings Based on Inelastic Displacement Concept”, Architectural Institute of Japan, Tokyo.
7. AIJ, 2010, “AIJ Standard for Structural Calculation of Reinforced Concrete Structures”, Architectural Institute of Japan, Tokyo.

8. Chiu, C.K.; Chi, K.N.; Lin, F.C., “Experimental Investigation on the Shear Crack Development of Shear-Critical High-Strength Reinforced Concrete Beams”, Journal of Advance Concrete Technology, Vol. 12, pp. 223-238.

9. Gitomarsono, Jessica, 2021, “Cyclic Behavior of RC Flexural Member with Different Design Parameter”, Master Thesis, National Taiwan University of Science and Technology, Taipei, Taiwan.

10. Mansur, M.A. and Tan K, K.H., 1999, “Concrete Beams with Openings: Analysis and Design”, CRC Press, Boca Raton, Florida.

11. Mansur, M.A., 1998, “Effect of Openings on the Behaviour and Strength of R/C Beams in Shear”, Cement and Concrete Composites, Vol. 20, No 6, pp. 477-86.

12. Shimazaki, K., (2009), “Evaluation of Shear Crack Width Based on Shear Force Ratio”, AIJ Journal of Technology and Design, Vol 15, pp. 139-142. (in Japanese)

13. Wight, J.K., 2016, “Reinforced Concrete: Mechanics and Design”, Seventh Edition, Pearson Education Inc., Hoboken, NJ, 1144 pp.

14. 周玠慈, 2021, “Study on the Novel Retrofitting Methods of Reinforced Concrete Beams with Circular Openings”, Master Thesis, National Taiwan University of Science and Technology, Taipei, Taiwan. (in Chinese)

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