Steph Kilduff Constructing Studio Journal Week 2
The load-bearing walls needed bracing in within the rectangular frames in order for the columns not to buckle. This would divide the total force on the column. Two braces would have been more effective however as there was a lack of balsa wood only one was used diagonally. The other option considered Triangular base frame for tower. This was two smaller pieces in the centre where the columns may have buckled. allows enough stability of vertical frame This framed construction differs heavily to the form used in week 1 with less without using too many pieces. material used to make the tower.
A tee-pee construction of balsa wood ( 3 pieces in length) was used to gain the most height of the tower. With this in place, more pieces were added to the most upright piece of balsa wood to gain height in the tower (such as the antennas seen on skyscrapers).
Other groups also utilised a triangular-based structure. Both groups (left and right) shared the same frame however group left used a much larger frame and constructed from the ground up; whereas group right had a smaller base frame and constructed the tower on the ground to lift up at the end. This showed to be more useful in creating a higher structure.
Construction of the first level showed not enough balsa pieces would enact a tall tower in the required time. With a stable base the group decided to enact a narrower structure different to that of the base
Steph Kilduff Constructing Studio Journal Week 2 It is interesting to note how group (right) constructed the tower with smaller pieces of balsa wood. Although not the tallest, this was the most structurally sound with a triangular base (like the other 3) but with extra triangular braces and vertical components attached to the loadbearing walls. Furthermore, the diagonal pieces attaching the columns and beams helped stabilise the structure without needing to put bracing across the entire level.
The final stages of construction left most groups adding single vertical pieces to the top of their structures to gain the most height. As the base for all groups was relatively strong and broader than the top, this was done with less instability than predicted. This was also aided by the lightness of the balsa wood which left little weight and force on the lower structures. However, lateral stability became more of a problem because of the uncertain angles. This made all 3 towers more unstable. In reality, the framing of the towers when finished was not structurally sound and could not be applied to an actual building.
As the tower grew in height its stability was compromised and this was shown by the vulnerability of the top of the structure, which was no longer vertical. To counteract this, 2 braces were put at the bottom of the tower opposite the leaning to react to the force, helping to keep the tower slightly more stable, resulting in equilibrium of forces.