Group Project Presentation - 1


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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.
  • Group Project Presentation - 1

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