ABSTRACT
Spiral viscous damping support system is used to coordinate the structure with building performance, which is a creative solution to the problem of L-shaped block element spiral twisting overrunning the structure rules. This also avoids the problem of
1 INTRODUCTION
High-rise green buildings have been the focus of intensive research because of their design and performance. There are two main forces that drive the flow through the indoor space: external wind and buoyancy due to temperature difference. The effect of buoyancy is insignificant without an external airflow passage other than the structure itself. The addition of an external airflow passage such as a window in combination with buoyancy force increased the indoor ventilation by 47%. Moreover, it is found that buildings are restricted to transient draining flows in a space containing buoyant fluid, when the wind and buoyancy forces reinforce one another. Therefore, careful spiral positioning of windows in conjunction with external wind-driven forces and unique indoor space formed by spiral layout of L-shaped block units and facility floors has the potential to enhance natural ventilation. This complex high-rise steel structure with characteristic of plane irregularity and vertical irregularity is designed with integrated building airflow simulation, and then confirmed by anti-seismic performance analysis by an introduction to current systems and phenomenological modeling.
