Rules for Structure

Your model only needs to include the main structural frame of a building. You do not need to add the walls on the outside of the building or stairs within.

Your model can be any shape you like, but it must follow these rules.

1. It must have at least 4 horizontal floors that are represented by flat pieces of paper supported any way you like. A flat roof will be treated as a floor.

2. Not counting the ground floor, the total area of all of the other floors must be at least 750 sq cm. The maximum area allowed for each floor is 320 sq cm. The floor area includes the space taken by the columns.
   
   
3. The distance between the top of any floor and the bottom of the floor above must be at least 15 cm. The fixings required for the steel blocks in the Rules for Vertical Load do not count as part of the floors.

4. You must leave 12 mm clear around the edges of the MDF base board, so that we can fix your model to the shaking-table with clamps. However, you may tie string to the corners of the base board only.

5. In a real building, you would need windows in every storey. So for each storey of your model, half of the outside surface must be left completely clear of any materials between the top of one floor and the bottom of the floor above.