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Group Project Presentation - 1

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Group Project Presentation, University of Sheffield - 1

Group Project Presentation, University of Sheffield - 1

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  • Our design is Portland house which is a part of reconstruction of a former industrial site close to centre of a large UK town.Up to 3.4 m depth is made ground. From 3.4 m to 9.8 m River Terrace deposits (sand and gravel). 9.8 m to 35.7 m is stiff clay followed by bedrock. The highest ground water level encountered was at 2.0 m depth. The building consists of an underground basement primarily for car parking provided through a ramp, a plant room and elevator and stairs for access to ground floor and residential floors. The ground floor has room for private leisure facilities including a gym, office, café and a saloon. The ground floor is followed by nine luxury residential floors each having four apartments.
  • Choice of material – Steel – Reasons, availability, durability, economy, labour cost, sustainability, speed of construction, ability of having longer spans.Our team proposes two structural schemes for this project which are Simple construction and the second one is continuous construction. In simple construction the joints are designed as pin connections which do not transfer moments from beams to column or to other beams. While in continuous construction, the connection is designed to transfer the moment from beams to columns and other beams.Common ElementsThe structural layout for both of the design schemes are primarily same.The foundation for both the structural schemes are proposed to be a raft foundation.The design of the retaining wall for both the design schemes is similar with reinforced concrete walls provided.Both the schemes have the same structural layout so the building will have the same aesthics.
  • Continuous beam / column connections substantially increase stiffness of floor systems to ensure serviceability in presence of long spans and/or restricted beam depths.The columns, especially external columns increase in size substantially to resist bending moments.Continuous beam column connections are much more costly both in terms of labour and material than simple connections.The global analysis is complex making it difficult to optimise element sizes.

Transcript

  • 1. University of Sheffield
    GROUP 8 BRIEF 1
    Department of Civil & Structural Engineering
    Design of Portland BuildingConcept design and outline
    Nabeel Jafri
    Vishal Krishnan
    John Muramya
    Anuj Ramdas
    Muhammad Shah
  • 2. Contents
    Department of Civil & Structural Engineering
    • Introduction
    • 3. Structural schemes considered for project
    • 4. Major differences between the design schemes
    • 5. Recommendations on the chosen design scheme
    • 6. Considerations leading to layout
    • 7. Load transfer path
    • 8. Conformance with design briefs
    • 9. Preliminary member sizing
    • 10. Brief description of method of execution
    • 11. Aesthetics
    • 12. Questions
    Bilal S.
    John M.
    Vishal K.
    Nabeel J.
    Anuj R.
  • 13. Introduction
    Department of Civil & Structural Engineering
    Site
    Ground conditions
    The Building
    Basement
    Ground floor
    Residential floors
  • 14. Structural Scheme
    Department of Civil & Structural Engineering
    Choice of material – Steel / Concrete
    Structural schemes
    Simple construction
    Continuous construction
    Common elements in the two design schemes
    Structural Layout
    Foundation
    Retaining wall
    Aesthetics
  • 15. Major differences betweenthe schemes
    Department of Civil & Structural Engineering
  • 16. Recommendations on selection of scheme
    Department of Civil & Structural Engineering
    When strength of the structure governs design, simple construction should be adopted.
    When stiffness (serviceability) governs design, greater economy is generally achieved with simple construction.
    As the region in which the structure is to be designed is not a seismic active zone, continuous construction may not be required.
  • 17. Structural layout – Residential floors
    Department of Civil & Structural Engineering
  • 18. Structural layout – Ground floor
    Department of Civil & Structural Engineering
  • 19. Department of Civil & Structural Engineering
    Structural layout Basement
  • 20. Load transfer – Typical floor layout
    Department of Civil & Structural Engineering
  • 21. Load transfer - Basement
    Department of Civil & Structural Engineering
  • 22. Load transfer - Basement
    Department of Civil & Structural Engineering
  • 23. Conformance with design brief
    Department of Civil & Structural Engineering
    Constraints :
    Clear distance between columns at least 2.5m
    Layout of parking space and access path
    Location of columns between bays
    Reasonable positioning of vertical structural elements on the ground floor
    No internal columns in the residential flats
    All the perimeter columns widths are to be limited to 250mm
  • 24. Structural layout – Ground floor
    Department of Civil & Structural Engineering
  • 25. Department of Civil & Structural Engineering
    Structural layout Basement
  • 26. Structural layout – Residential floors
    Department of Civil & Structural Engineering
  • 27. Preliminary member sizing
    Department of Civil & Structural Engineering
    Residential beam size UKB 356x171x57
    Critical Beam in the basement
    UKB 1016x305x437
    Critical Column in the ground floor
    UKB 305x305x240
  • 28. Proposed method of construction
    Department of Civil & Structural Engineering
    Soil Excavation
    Slope stability
    Retaining Wall
    Dewatering
    Foundation
    Basement
    Basic Frame
    Precast Flooring
  • 29. Aesthetics
    Department of Civil & Structural Engineering
    Glazing and Day lighting
    Façade
    Lifts
    Balcony
    Bracing
    Natural Ventilation
    Landscaping
  • 30. Department of Civil & Structural Engineering
    Questions?