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Final Presentation

United Arab Emirates University College of Engineering Department of Civil and Environmental Engineering Graduation Project Fall 2008. Structural Analysis and Design of a Composite Steel/RC Multi-Storey Building. Final Presentation . Advisor: Dr . Amr Sweedan. Examination Committee

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Final Presentation

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  1. United Arab Emirates University College of Engineering Department of Civil and Environmental Engineering Graduation Project Fall 2008 Structural Analysis and Design of a Composite Steel/RC Multi-Storey Building Final Presentation Advisor: Dr. AmrSweedan Examination Committee Dr. MawahibSulieman Dr. Ahmad Bushlaibi Dr. Khaled El-Sawy

  2. Design of Beams Design Shearwall Outline Project Description Connection Slab Design Design of Columns

  3. Project Description … 3D Perspective View Core Building Side (CC) Building Side (C)

  4. Project Description… overview • (C) Side: • Consist of 30Floors. • Arch Concaving in One Direction. • Floor Height: 3.6 m. • Dimensions:(34 m x10 m). • Number of Apartments: 3 • (CC) Side: • Consist of 28Floors. • Arch Concaving in Other Direction. • Floor Height: 3.6 m. • Dimensions: (31 m x 10 m). • Number of Apartments: 2

  5. Project Description … Overview • Core: • Contains the Elevators, Staircases, Shear walls and Ducts. • Not Concaved. • Dimensions: (18 m x 6 m).

  6. Structural System … Plan View

  7. Design of Beams Design Shearwall Outline Project Description Connection Slab Design Design of Columns

  8. Flat Slab Slab and Staircase Design Design procedure Flat Slab Concept Staircase

  9. Flat Slab…… General concept • Flat Slab: • Flat slab is a slab directly supported on columns • Advantages: No interior beams. • Thickness: 30cm. • Slab to be designed at floor 15

  10. Flat Slab …..Design procedure Design flat slab Hand calculation Sap2000 Software • Calculating minimum steel percentage • Find the value of (Rn) • Find the nominal moment Equations

  11. Design flat slab……Check Punching • Determine the ultimate shear acting on the slab. (Vu) • Determine the column resistance (Vc) The outer perimeter from column face

  12. Flat Slab …..Design procedure Design flat slab Sap2000 Software Hand calculation Put the nominal moment in the software as the main mesh Put extra reinforcement on the areas which exceeds the nominal moment value

  13. Design flat slab……Final Detailing Bottom Detailing Top Detailing

  14. Staircase…… Technical Terms • Going (G): The horizontal distance of the upper surface of a step. • Rise (R): The vertical distance between horizontal of two consecutive steps. • Waist (h): the least thickness of the stairs slab. • Landing: the horizontal platform which is usually provided at the beginning and the end of series of steps. • Flight: comprised of a number of steps provided between two consecutive landings

  15. Staircase……. Design summary procedure • Find the depth of steel reinforcement (d) • Find the steel percentage (r) • Check r • Find As, As (min) and spacing • Check shear

  16. Design of Beams Design Shearwall Outline Project Description Connection Slab Design Design of Columns

  17. Shear Wall Design Shear wall Shear wall Concept Design procedure Result

  18. Shear Wall…… Concept • Shear wall refers to a structural element that is used to resist lateral wind and earthquake loads. • For tall buildings it is essential to provide adequate stiffness to resist the lateral loads caused by wind and earthquake.

  19. Shear Wall…… Design procedure • Determine the minimum thickness (tw) • Determine the maximum spacing between the vertical and horizontal reinforcement, (S1,S2)

  20. Shear Wall…… Design procedure • Determine the axial load capacity Design Stage Determine the shear strength • Determine the moment strength

  21. Shear Wall…… Design procedure • Determine the axial load capacity (Pnw) F = 0.65 Pnw:Nominal axial strength K: Effective length factor tw: Thickness of the wall Ic: Clear vertical distance between lateral support Concrete compressive strength Gross cross section area of the wall

  22. Shear Wall…… Design procedure • Determine the shear strength (Vnw) Area of the horizontal shear reinforcement Spacing between horizontal shear reinforcement 0.8 lw

  23. length of the wall length of the wall Ultimate axial load on the wall Shear Wall…… Design procedure • Determine the moment strength(Mnw) Ultimate axial load on the wall Total vertical steel reinforcement Yield strength length of the wall

  24. Shear Wall…… Result

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