Structures 3 - Midterm Study Notes Winter 2025

Building Repurposing as a Factory

1. Overview of Building Owner's Intent

• A building owner has acquired a facility and intends to convert it into a factory.
• The second storey floor structure consists of concrete beams.

2. Floor Framing Details

• The second-storey floor is framed with concrete beams, as depicted in the provided diagram.

3. Loading Patterns for New Configuration

• Loading patterns for the new floor configuration must be evaluated to ensure structural integrity:
  • P1 Loadings:
  • SL (Service Load): 35 kN
  • SD (Service Dead Load): 20 kN
  • SP (Service Point Load): 45 kN
  • another SL: 28 kN

4. Unit Loading Details

• Unit Loading for the second storey is as follows:
  • Service Dead Load (SDL): 2.2 kPa
  • Service Live Load (SLL): The area described as "library study room"

5. Beam Spacing Determination

• Task: Calculate the maximum beam spacing (tributary width) using the Dead + Live load combination.

6. Shear Steel Details

• Steel reinforcement detail for shear:
  • 10M shear steel.
  • Distribution: 4 bars of 20M.

7. Structural Material Specifications

• Concrete Specifications:
  • Grade: 25 MPa concrete.
  • Exposure Condition: Exterior exposure.
  • Maximum Aggregate Size: 20 mm.

8. Important Considerations

• Ensure to include self-weight of the concrete beams in the loading calculations.