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Research progress

Research progress. Arjan Klem 1211366. Concept &hypothesis. How to create a structural concrete facade that is transparent enough to get a good amount of daylight in and is not made of standardized elements?

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Research progress

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  1. Research progress Arjan Klem 1211366

  2. Concept &hypothesis • How to create a structural concrete facade that is transparent enough to get a good amount of daylight in and is not made of standardized elements? • The growth of a bone structure is nature’s example of a structure reacting to forces applied to it.

  3. Topology optimization; Optimize a shape to the forces applied to it, using the minimum amount of material. • A free 2d example program was used to experiment a little with this. • www.topopt.dtu.dk

  4. Things I had to do: - Calculate the forces on a standard building - Find a optimization program to calculate the façade of this building The building: 20x20x12 meters Wind load: 1kN/m² Chosen façade thickness: 300mm - This resulted in the input for a program

  5. As the optimization program I use Diana with a optimization script I received from dr. ir. Max Hendriks, who has done some research about optimization in Diana. • Now I had to model the input. Optimization in Diana, Max hendriks, May 2007

  6. Some factors are affecting the results: • Mesh Type (triangular/Quadratic) • Mesh division (finer=accurate but slow) • Number of iterations; Every node can be reduced 7 times so the maximum number of iterations is 7*nodes. Sow a finer mesh causes exponentionally more calculating time.

  7. Results of a triangular 24x24 mesh using 50000 iterations

  8. Now it raises the question if the Diana calculations are correct: I should somehow create a real model and test it and compare the results with the Diana output. -Downside of using Diana: Calculation times become very long to get accurate results

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