Contents
List of Figures iii
List of Tables v
Acknowledgement vi
Abstract vii
1. Introduction 1
1.1. Need for Study 1
1.2. Objective 2
1.3. Scope of Study 2
1.4.Overview of Methodology 2
1.5. Research Gap 3
1.6. Areas of Research for Dimensional Tolerance Analysis 3
1.7. Methodology and Data Collection 3
2. Literature Review 6
2.1. List of Papers Analyzed 6
2.2. Summary of Case Analyzed 7
3. Procedure 44
3.1. Data Collection 44
3.2. Project Details 45
3.3. Status of the Project 45
3.4. Technical Details of 3rd Floor of Tower B 47
3.5. Scope of Laser Scanning 47
3.6. Building Structure 47
3.7.Problems Identified at Site 47
3.8. Laser Scanning at Site 49
3.9. Pre-Processing of the 3D Point Cloud 61
3.10. Noise Removal 62
4. As Planned 3D Model 65
4.1. Procedure for Modelling 65
4.2. As-Planned 3D Model 66
5. Analysis 69
5.1. As-Build Slab Analysis 69
5.2. Procedure 69
6. As-build 3D Model 77
6.1. Procedure 77
6.2. Limitations 82
6.3. Results 86
7. Clash Detection 90
7.1. Result 90
8. Discussion 94
8.1. Manual Calculations 94
8.2. Clash Detection 95
8.3. Applications of Laser Scanning for other Sectors 96
8.4. Time Analysis 97
8.5. Recommendation 98
9. Conclusion 99
10. Future Scope 100
References 101