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研究生： MARNIE BECIOS GIDUQUIO
MARNIE - BECIOS GIDUQUIO
論文名稱： Punching Shear Strength and Deformation Capacity of Corner Slab-Column Connection
Punching Shear Strength and Deformation Capacity of Corner Slab-Column Connection
指導教授： 鄭敏元
MIN-YUAN CHENG
口試委員: 黃世建
SHYH-JIANN HWANG
陳正誠
CHENG-CHENG CHEN
歐昱辰
YU-CHEN OU
廖文正
WEN-CHENG LIAO
學位類別： 博士
Doctor
系所名稱： 工程學院 - 營建工程系
Department of Civil and Construction Engineering
論文出版年： 2016
畢業學年度： 104
語文別： 英文
論文頁數： 221
中文關鍵詞： Corner 、Slab-columnconnection 、Punchingshear 、Flatplate
外文關鍵詞： Corner, Slab-column connection, Punching shear, Flat plate
相關次數： 點閱：235  下載：14 
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    • An experimental study is carried out to investigate the punching shear behavior of corner slab-column connection under combined gravity load and lateral displacement reversals. There are two design parameters considered in this study, namely the level of connection gravity shear and the flexural reinforcement ratio within the effective slab width defined in the ACI 318-14 (ACI Committee 318, 2014). Test results show that connection gravity shear should be limited to achieve a ductile response under earthquake-type loading. An increase in punching shear strength is also observed for specimens with higher slab flexural reinforcement ratio.

    A database of corner slab-column connection tests is established. Punching shear design provisions of the ACI 318-14 is reevaluated for corner slab-column connection application using the available test results. It is found that there is no strong interaction between the connection shear and unbalanced moment transfer in corner slab-column connections. A recommended expression for evaluating the connection punching shear strength is provided. Based on limited test results, a reinforcement ratio of 0.01 would be a reasonable value to achieve a lateral displacement response satisfying the deformation check criterion of ACI 318-14, for connections with gravity shear level of 1.20√(f_c^' ) b_o d (kip) [0.10√(f_c^' ) b_o d (kN)] to 2.00√(f_c^' ) b_o d (kip) [0.17√(f_c^' ) b_o d (kN)].

    TABLE OF CONTENTS ABSTRACT i ACKNOWLEDGEMENT ii TABLE OF CONTENTS iii LIST OF TABLES vi LIST OF FIGURES vii NOTATIONS xi CHAPTER 1 – INTRODUCTION 1 1.1 FLAT PLATE STRUCTURAL SYSTEM 1 1.2 CURRENT DESIGN PRACTICE OF SLAB-COLUMN CONNECTIONS 3 1.3 RESEARCH MOTIVATION 7 1.4 RESEARCH OBJECTIVES 7 1.5 REPORT OUTLINE 8 CHAPTER 2 – LITERATURE REVIEW 10 2.1 INTRODUCTION 10 2.2 DEVELOPMENT OF PUNCHING SHEAR DESIGN PROVISIONS PER ACI 318 10 2.3 ECCENTRIC SHEAR STRESS MODEL 24 2.3.1 Development of Eccentric Shear Stress Model 24 2.4 CONNECTION DISPLACEMENT CAPACITY 31 2.5 CORNER SLAB-COLUMN CONNECTION PUNCHING SHEAR PROVISIONS SPECIFIED IN THE TWO MAJOR EUROPEAN BUILDING CODES 34 2.5.1 Eurocode 2 (2004) 35 2.5.2 FIB Model Code 2010 39 2.6 CORNER SLAB-COLUMN CONNECTION TESTS 43 2.6.1 Zaghlool, de Paiva and Glockner (1970) 44 2.6.2 Walker and Regan (1987) 45 2.6.3 Desayi and Seshadri (1997) 48 CHAPTER 3 – EXPERIMENTAL PROGRAM 50 3.1 INTRODUCTION 50 3.2 PROTOTYPE FLOOR SYSTEM 50 3.2 SPECIMEN DESIGN 53 3.2.1 Slab 55 3.2.2 Column 59 3.3 SPECIMEN CONSTRUCTION 61 3.4 EXPERIMENTAL SETUP AND INSTRUMENTATION 65 3.4.1 Experimental Setup 65 3.4.2 Data Recording and Instrumentation 69 CHAPTER 4 – EXPERIMENTAL RESULTS AND DISCUSSIONS 80 4.1 INTRODUCTION 80 4.2 MATERIAL PROPERTIES 80 4.2.1 Concrete 80 4.2.2 Steel Reinforcement 83 4.3 GENERAL SPECIMEN RESPONSE AND CRACK DEVELOPMENT 92 4.3.1 Specimen G1 92 4.3.2 Specimen G2 101 4.3.3 Specimen G3 105 4.3.4 Specimen R1 112 4.3.5 Specimen R2 120 4.3.6 Specimen R3 126 4.4 GRAVITY SHEAR HISTORY AND LATERAL LOAD-DRIFT RESPONSE 133 4.4.1Specimen G1 134 4.4.2Specimen G2 139 4.4.3 Specimen G3 142 4.4.4 Specimen R1 146 4.4.5 Specimen R2 151 4.4.6 Specimen R3 155 4.4.7 Discussions 159 4.6 CONNECTION ROTATION 161 4.6.1 Specimen G1 161 4.6.2 Specimen G2 162 4.6.3 Specimen G3 163 4.6.4 Specimen R1 164 4.6.5 Specimen R2 165 4.6.6 Specimen R3 166 4.6.7 Discussions 167 4.7 STRAIN GAUGE READINGS 168 4.7.1 Specimen G1 168 4.7.2 Specimen G2 170 4.7.3 Specimen G3 171 4.7.4 Specimen R1 172 4.7.5 Specimen R2 174 4.7.6 Specimen R3 175 4.7.7 Discussions 176 CHAPTER 5 – ANALYSIS OF EXPERIMENTAL RESULTS 178 5.1 INTRODUCTION 178 5.2 SPECIMEN PUNCHING SHEAR STRENGTH 178 5.2.1 Databank of Corner Slab-Column Connection Subjected to Gravity Loading Only 179 5.3 EVALUATION OF PUNCHING SHEAR PROVISIONS IN BUILDING CODES AND DESIGN GUIDELINES 181 5.3.1 ACI 318-14 181 5.3.2 ACI 421 187 5.3.3 Eurocode 2 (2004) 191 5.3.4 Model Code 2010 193 5.4 PROPOSED PUNCHING SHEAR STRENGTH MODEL FOR CORNER SLAB-COLUMN CONNECTION UNDER GRAVITY-TYPE LOADING 196 5.5 LATERAL DISPLACEMENT CAPACITY OF CORNER SLAB-COLUMN CONNECTIONS 202 CHAPTER 6 - CONCLUSIONS 205 REFERENCES 208

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