Local system03 is designed with the idea of combining sustainable strategies and structural concepts from the beginning (local system 01 and 02 has mostly focused on sustainable strategies) and to simplify the complex structural cross-bar system without loosing novel strategies. The system is one design scheme but divided into 3 constructs, which each has a variable functioning as a controlled gradient. Each system is applied to specific zones according to structural load (based on heuristics) and thermal/solar requirements (as investigated in exp.02 and exp.03). The system is constructed from a double frame (spatial frame) which is 'cladded' with ETFE material, creating a thermal pocket (as local system01 and 02). The pocket is divided into 2 spaces through a surface which is used as solar reflector or shield according to season due to varying solar paths. It thus reflects daylight into the building during summer and allow direct sunlight in winter in zones which absorb the solar energy (the red solids - enclosed spaces) located just underneath the building envelope. The system is also seen to advance thermal buoyancy through an intake of the prevailing wind from north in the centre bottom and an outlet via the atria in the top of the building and to improve insulation values as the larger distance between the 2 frames, the better insulation value. Structural load-bearing is controlled in gradients as the double frame grows larger as prior investigated, which is then further strengthened by the reflecting surface creating a triangulated system. Structural differentiation can be obtained further by the material properties of the triangulation system.
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