Performance review of 2B + G + 22 irregular tall building with and without infill (Soft copy is also available)
Gandhi, Aashlesh (PT400517)
Performance review of 2B + G + 22 irregular tall building with and without infill (Soft copy is also available) - 2019 - 11,xvi,79p.,11sheets
CONTENTS
Undertaking iii
Certificate v
Acknowledgement vii
Abstract ix
Table of Contents xi
List of Tables xiv
List of Figures xv
1 CHAPTER – 1 INTRODUCTON 1
1.1 Overview 1
1.2 Need of the Study 3
1.3 Objective of the Study 4
1.4 Scope of Work 4
1.5 Layout of Study 4
2 CHAPTER – 2 LITERATURE STUDY 5
2.1 Methods of Seismic Analysis 5
2.1.1 Equivalent Static Analysis 6
2.1.2 Non-Linear Static Analysis (Pushover Analysis) 6
2.1.3 Response Spectrum Analysis 7
2.1.4 Time History Analysis 8
2.1.5 Review of Earlier Work 9
2.2 Along and Across Wind Loads 10
2.3 Equivalent Diagonal Strut for Infill Walls 11
2.3.1 Review of Earlier Work 12
3 CHAPTER – 3 Modelling of Building and Infill 13
3.1 Modelling of the Buildings 13
3.1.1 Introduction to the Project. 13
3.1.2 Project in Terms of code. 14
3.1.3 Modelling in ETABS 16
3.1.4 Observations 18
3.2 Modelling of Infill Wall. 20
3.2.1 Stiffness Properties of Diagonal Strut Model 20
3.2.2 Length and Area of Diagonal Strut 20
4 CHAPTER – 4 RESULTS 23
4.1 Base Shear Comparison 23
4.2 Top Storey Displacement Comparison 23
4.3 Storey Drift Comparison 24
4.4 Storey Displacement Comparison 25
4.5 Storey Forces Comparison 26
4.6 Storey Acceleration Comparison 27
4.7 Storey Stiffeness Comparison 28
4.8 Modal Participation Mass Ratio and Time Period Comparison 29
4.9 Top Storey Displacement at Every Corner 30
5 CHAPTER – 5 CONSLUSION 31
5.1 Conclusion 31
5.1.1 Base Shear Comparison 31
5.1.2 Storey Drift Comparison 31
5.1.3 Storey Displacement Comparison 31
5.1.4 Maximum Displacement Comparison 31
5.1.5 Storey Forces Comparison 31
5.1.6 Storey Stiffens Comparison 31
5.1.7 Storey Acceleration Comparison 32
5.1.8 Modal Mass Participation 32
6 CHAPTER – 6 Bibliography 33
A. Annexure – A Architectural Layout 37
A.1 Drawing Index 37
B. Annexure – B Software Modelling 39
B.1 Response Spectrum Method of Analysis 39
B.1.1 Define Response Spectrum Function 39
B.1.2 Define Response Spectrum Case 40
B.2 Time History Method of Analysis 42
B.2.1 Define Time History Function 42
B.2.1 Define Time History Case 44
B.3 Modelling of Infill Walls 46
B.3.1 Define Material Property of Masonry Infill. 46
B.3.2 Frame Assignments 47
C. Annexure – C Load Calculations 49
C.1 Load Combinations Considered 49
C.2 Load Calculation 49
C.2.1 Earthquake Calculation 50
C.2.2 Location of Diaphragm 53
C.2.3 Diaphragm Eccentricity 54
C.2.4 Static Wind Load Calculation 57
C.2.5 Along Wind Load Calculation 61
C.2.6 Across Wind Load Calculation 66
C.2.7 Check – Modal Participation Mass Check 71
C.2.8 Check – Torsional Irregularity Check 72
C.2.9 Check – Mass Irregularity Check 73
C.2.10 Check – Stiffness Irregularity Check 74
C.2.11 Check – Storey Drift Check 75
D. Annexure – D Miscellaneous Data 77
D.1 Imposed load Reduction factor 77
D.2 Corner Location 77
D.3 Infill Walls Considered 78
SD TH-0246 / GAN
Performance review of 2B + G + 22 irregular tall building with and without infill (Soft copy is also available) - 2019 - 11,xvi,79p.,11sheets
CONTENTS
Undertaking iii
Certificate v
Acknowledgement vii
Abstract ix
Table of Contents xi
List of Tables xiv
List of Figures xv
1 CHAPTER – 1 INTRODUCTON 1
1.1 Overview 1
1.2 Need of the Study 3
1.3 Objective of the Study 4
1.4 Scope of Work 4
1.5 Layout of Study 4
2 CHAPTER – 2 LITERATURE STUDY 5
2.1 Methods of Seismic Analysis 5
2.1.1 Equivalent Static Analysis 6
2.1.2 Non-Linear Static Analysis (Pushover Analysis) 6
2.1.3 Response Spectrum Analysis 7
2.1.4 Time History Analysis 8
2.1.5 Review of Earlier Work 9
2.2 Along and Across Wind Loads 10
2.3 Equivalent Diagonal Strut for Infill Walls 11
2.3.1 Review of Earlier Work 12
3 CHAPTER – 3 Modelling of Building and Infill 13
3.1 Modelling of the Buildings 13
3.1.1 Introduction to the Project. 13
3.1.2 Project in Terms of code. 14
3.1.3 Modelling in ETABS 16
3.1.4 Observations 18
3.2 Modelling of Infill Wall. 20
3.2.1 Stiffness Properties of Diagonal Strut Model 20
3.2.2 Length and Area of Diagonal Strut 20
4 CHAPTER – 4 RESULTS 23
4.1 Base Shear Comparison 23
4.2 Top Storey Displacement Comparison 23
4.3 Storey Drift Comparison 24
4.4 Storey Displacement Comparison 25
4.5 Storey Forces Comparison 26
4.6 Storey Acceleration Comparison 27
4.7 Storey Stiffeness Comparison 28
4.8 Modal Participation Mass Ratio and Time Period Comparison 29
4.9 Top Storey Displacement at Every Corner 30
5 CHAPTER – 5 CONSLUSION 31
5.1 Conclusion 31
5.1.1 Base Shear Comparison 31
5.1.2 Storey Drift Comparison 31
5.1.3 Storey Displacement Comparison 31
5.1.4 Maximum Displacement Comparison 31
5.1.5 Storey Forces Comparison 31
5.1.6 Storey Stiffens Comparison 31
5.1.7 Storey Acceleration Comparison 32
5.1.8 Modal Mass Participation 32
6 CHAPTER – 6 Bibliography 33
A. Annexure – A Architectural Layout 37
A.1 Drawing Index 37
B. Annexure – B Software Modelling 39
B.1 Response Spectrum Method of Analysis 39
B.1.1 Define Response Spectrum Function 39
B.1.2 Define Response Spectrum Case 40
B.2 Time History Method of Analysis 42
B.2.1 Define Time History Function 42
B.2.1 Define Time History Case 44
B.3 Modelling of Infill Walls 46
B.3.1 Define Material Property of Masonry Infill. 46
B.3.2 Frame Assignments 47
C. Annexure – C Load Calculations 49
C.1 Load Combinations Considered 49
C.2 Load Calculation 49
C.2.1 Earthquake Calculation 50
C.2.2 Location of Diaphragm 53
C.2.3 Diaphragm Eccentricity 54
C.2.4 Static Wind Load Calculation 57
C.2.5 Along Wind Load Calculation 61
C.2.6 Across Wind Load Calculation 66
C.2.7 Check – Modal Participation Mass Check 71
C.2.8 Check – Torsional Irregularity Check 72
C.2.9 Check – Mass Irregularity Check 73
C.2.10 Check – Stiffness Irregularity Check 74
C.2.11 Check – Storey Drift Check 75
D. Annexure – D Miscellaneous Data 77
D.1 Imposed load Reduction factor 77
D.2 Corner Location 77
D.3 Infill Walls Considered 78
SD TH-0246 / GAN