Analysis of Fatigue Performance in Bolted Connections of Modern Steel Structures Under Variable Loads

1. Introduction 1.1 Background and Significance 1.2 Objectives of the Study 1.3 Structure of the Thesis 2. Literature Review 2.1 Overview of Fatigue in Steel Structures 2.2 Bolted Connections in Engineering 2.3 Advances in Fatigue Analysis 3. Methodology 3.1 Research Design 3.2 Data Collection Methods 3.3 Analytical Techniques Used 4. Theoretical Framework 4.1 Stress Analysis in Steel Structures 4.2 Fatigue Crack Initiation Models 4.3 Load Variation Impacts 5. Experimental Setup 5.1 Material and Specimen Selection 5.2 Testing Equipment and Procedures 5.3 Calibration and Data Recording 6. Results and Discussion 6.1 Fatigue Behavior Observations 6.2 Comparison with Theoretical Predictions 6.3 Implications for Structural Design 7. Case Studies 7.1 Real-World Applications 7.2 Performance Under Diverse Conditions 7.3 Lessons Learned 8. Conclusion and Recommendations 8.1 Summary of Findings 8.2 Practical Recommendations 8.3 Future Research Directions