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Exploring Column Ground Relationships for Structural Stability

Experimentation on different column types such as hinged, pinned, rotating, and fixed, with variations in length, width, and section shapes to understand their impact on structural stability and deflection behavior.

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Exploring Column Ground Relationships for Structural Stability

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  1. Week 2 Experimentation TS Term 2

  2. What are we testing? • Relationship of column to the groundtypes: • Hinged • Pinned • Rotating • Fixed and pinned • Different length and width • Different sections

  3. 1. Columns and their relationship to the ground

  4. Hinged on bottom, free on top Diagram of connection Half bottle: .5cm full bottle: 1cm

  5. Hinged on bottom and hinged on top Diagram Half bottle: .2cm full bottle: .8cm

  6. Rotating on top, hinged on bottom Half bottle: .7cm full bottle: 1.2cm Diagram

  7. Hinged on bottom, pinned on top Half bottle: 1.5cm Full bottle: 3cm Diagram

  8. Pinned to fixed surface on top, hinged on bottom Half bottle: .5cm full bottle: .8cm Diagram

  9. Pinned to fixed surfaces on top and bottom Diagram Half bottle: 3.5cm full bottle: 4cm

  10. 2. Different length and width 1) 1*1*30cm Original size, hinged bottom with free on top. The largest deflection. 2) 1*1*15cm Half in height. Deflected only slightly (1mm) with the same load. 3) 2*2*30cm Double dimension with original height. Barely deflected. 4) 1*2*30cm One dimension is doubled. Deflects towards the plane with the longer dimension.

  11. 3. Different sections with same area size (1cm2) 1) Original square section.Hinged bottom with free on top. 2) Square frame section. Stiffer than square section. 3) I section. It was also stiff and did not bend like normal square section.

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