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APPENDIX !

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CONSTRUCTING ENVIRONMENTS CONSTRUCTION WORKSHOP 04.04.14


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1x Plywood! 3x Pine! Equipment used:! Hammer! Nails! Screws! Saw! Ruler! Pencils

The plan:! Divide one Pine wood into several pieces and drill these into the long sticks. We thought maybe this would achieve strength in both horizontal and vertical directions!

Added the remaining pine wood in the middle section to strengthen it in the part that would get crushed the most!

Place the plywood on top to complete the structure!


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Other groups used a truss structure with plywood on the side!

Other groups did a similar design to ours, however their plywood was facing on the side, which proved to be more effective in the final result.!

Another group’s structure, they turned their pine pieces the other way to minimise the amount of space used!

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The machine that would determine the strength of our structures through applying pressure in KG! !


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Our structure quickly gave way at a 15-20ml deflection at 110kg.! We learnt that plywood is a sheet material and is good in compression primarily, so we should have placed it facing the side. !

! ! ! ! ! ! ! ! ! ! It was also ! recommended that we ! use flat headed nails as ! opposed to bullet nails ! as they make the pine ! wood a lot weaker due to ! their sheer size! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !

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Truss structure collapsed at 168kg, 70mls breaking point!


65Ml 320Kg breaking point!

100ml deflection and 45kg breaking point!

Cw_  
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