Details

The purpose of research is to analysis reinforced concrete tall buildings affected by wind loads. A tower, ground floor plus 19 story, the structural system comprises of three systems which the first one is ordinary shear walls as lateral force resisting system the second one is the rigid frame system and the third one will be combine between shear and rigid frame; the research will compare the structural behavior of three systems individually according to the horizontal and vertical loads which are wind load, live and dead loads. The three models will be analyzed using finite element based programs (ETABS V16.20), and (SAFE 2016). ASCE 7 Lateral forces resulting from wind (Directional procedure) will be manually calculated, and the results will be compared to (ETABS) for check, stability criteria and story shear resulting from wind will be compared between three systems according to: - Maximum displacements and inter-story drifts of the three systems. - P-delta effects. - Comparison of Story Shear from Manual Calculation and ETABS Analysis. - Shear and moments of elements. - Base shear and overturning moment. - Foundation bearing capacity and Settlement.

• INTRODUCTION
  • Preface
  • Problem of study
  • Research objectives
  • Research methodology
  • The practical significance of the research
  • The scientific novelty of the research
  • Research structure
• CHAPTER 1. METHODOLOG AND LITERATURE REVIEW
  • 1.1 Historical development of high-rise building
  • 1.2 Definition of high-rise buildings
  • 1.3 Structural Loading
    • 1.3.1 Gravity Loads
      • 1.3.1.1 Dead Loads
      • 1.3.1.2 Live Loads
    • 1.3.2 Wind loads
  • 1.4 Wind-induced building motion
  • 1.5 Methods of calculating wind loads
    • 1.5.1 Design codes and analytical methods:
    • 1.5.2 Wind tunnel testing (experimental)
    • 1.5.3 Numerical methods (computational fluid dynam
  • 1.6 ASCE provision for calculating wind loads
    • 1.6.1 Determination the Basic Parameters
    • 1.6.2 Steps to determine MWFRS wind loads for buil
  • 1.7 P-Delta effects
  • 1.8 Fundamental behaviour of lateral load-resistin
    • 1.8.1 Load transfer mechanisms
    • 1.8.2  Dynamic characteristics under wind
  • 1.9 The structural systems of high-rise buildings
    • 1.9.1 Rigid frame system
      • 1.9.1.1 Wind induced response for rigid frame syst
    • 1.9.2 Shear wall system
      • 1.9.2.1 Behavior of shear wall system
    • 1.9.3 Coupled shear walls system
    • 1.9.4 Wall-frame system
    • 1.9.5 Framed tube structures
  • 1.10 Diaphragms
    • 1.10.1 The roles of diaphragms
  • 1.11 Foundations systems
    • 1.11.1 Mat foundations
  • 1.12 Comparative performance analysis
    • 1.12.1 Quantitative performance metrics
    • 1.12.2 Height-dependent performance
  • 1.13 Modeling using ETABS
    • 1.13.1 Reasons of using ETABS
  • 1.14 Previous Studies and experimental analyses
  • 1.15 Research gaps
  • 1.16 Implications for design practice
• CHAPTER 2. ANALYSIS OF THE BUILDINGS
  • 2.1 Introduction
  • 2.2 Case study information
  • 2.4 Manual Calculation of lateral loads
    • 2.4.1 Wind load Calculation
      • 2.4.1.1 Calculations of gust effect factor
      • 2.4.1.2 Calculations of velocity pressure
      • 2.4.1.3 Calculations of external and internal pres
      • 2.4.1.4 Calculation of Design Wind Force
  • 2.5 Modeling using ETABS 2016
    • 2.5.1 Creating grids
    • 2.5.2 Defining materials and section properties
    • 2.5.3 Property modifiers
    • 2.5.4 Load Patterns
    • 2.5.5 Mass Source (static)
    • 2.5.6 Modal Cases
    • 2.5.7 Wind loads
    • 2.5.8 Load Combination
    • 2.5.9 Meshing
  • 2.6 Structural configurations
    • 2.6.1 Horizontal Irregularity
      • 2.6.1.1 Torsion Irregularity ( Rigid frame )
      • Table 2.13. Torsion Irregularity ( Rigid frame )
      • 2.6.1.2 Torsion Irregularity ( Shear wall )
      • Table 2.14. Torsion Irregularity ( Shear wall )
      • 2.6.1.3 Torsion Irregularity ( Dual system )
      • Table 2.15. Torsion Irregularity ( Dual system )
    • 2.6.2 Calculation of systems displacement
      • 2.6.2.1 Displacement calculations for rigid frame
      • Table 2.16. Displacement calculations ( rigid fra
      • 2.6.2.2 Displacement calculations for shear wall m
      • Table 2.17. Displacement calculations ( shear wal
      • 2.6.2.3 Displacement calculations for dual system
      • Table 2.18. Displacement calculations ( dual syst
    • 2.6.3  Inter-story drifts for the three structural
      • 2.6.3.1  Inter-story drifts for rigid frame model
      • 2.6.3.2  Inter-story drifts for shear wall model
      • 2.6.3.2 Inter-story drifts for dual system model
    • 2.6.4 P-Delta effects
      • 2.6.4.1 P-Delta effects for rigid frame model
      • Table 2.22. P-delta calculations (rigid frame)
      • 2.6.4.2 P-Delta effects for shear wall model:
      • Table 2.23. P-delta calculations (shear wall)
      • 2.6.4.3 P-Delta effects for Dual model:
      • Table 2.24. P-delta calculations (dual system)
    • 2.6.5 Shear and bending moments of elements
      • 2.6.5.1 Internal forces for rigid frame model
      • 2.6.5.2 Internal forces for shear wall model
      • 2.6.5.3 Internal forces for dual system model
    • 2.6.6 Base shear and overturning moment for the th
      • 2.6.6.1 Base shear and overturning moment for rigi
      • 2.6.6.2 Base shear and overturning moment for shea
      • 2.6.6.3 Base shear and overturning moment for dual
  • 2.7 Modeling using SAFE 2016
    • 2.7.1 Checks for Rigid frame
      • 2.7.1.1 Check Mat allowable stress for Rigid frame
      • 2.7.1.2 Check Rigid frame foundation for overturni
      • 2.7.1.4 Check of the allowable settlement
    • 2.7.2 Checks for Shear wall Foundation
      • 2.7.2.1 Check Mat allowable stress for Shear wall
      • 2.7.2.2 Check Shear wall foundation for overturnin
      • 2.7.1.4 Check of the allowable settlement
    • 2.7.3 Checks for Dual system Foundation
      • 2.7.3.1 Check Mat allowable stress for Dual Model
      • 2.7.3.2 Check Dual system foundation for overturni
      • 2.7.3.3 Check of the allowable settlement
• CHAPTER 3. RESULTS AND DISCUSSION
  • 3.1 Introduction
  • 3.2 Torsional Irregularity Check
  • 3.3 Displacement for Rigid frame system
  • 3.4 Displacement for Shear wall system
  • 3.5 Displacement for dual system
  • 3.6 Inter-story drifts for the three structural sy
  • 3.5 P-Delta in the X-direction
  • 3.6 P-Delta for Y-direction
  • 3.8 Shear forces and bending moments of elements f
  • 3.9 Base shear and overturning moment for the thre
  • 3.10 Foundation bearing capacity and settlement
• CONCLUSION
  • Recommendations for future researches
• REFERENCES
• APPENDICES