Authors: Kyung-Ju Hwang, Gee-Cheol Kim and Yu-Seong Kim
Abstract: Most of the variable shading devices are installed outdoors, so they are greatly affected by structural safety due to external climate change, wind, rain, and snow. Especially, due to strong wind such as typhoons, safety problems may occur due to the dropout of the device. Therefore, it is necessary to analyze the wind pressure of shading device to evaluate the structural safety of the movable shading device. In this study, we analyze the wind pressure applied to the shading material according to the change of the length of the variable shading device, and apply it to the calculation of the wind load for the structural design of the variable shading device. The CFD (Computational Fluid Dynamic) analysis is used to analyze wind pressure magnitude and distribution. From the above results, it should be recognized that the higher wind pressure acts on the edge than the center part of the building and the higher wind pressure acts in the higher stories than the lower stories. Especially, it should be considering the negative pressure pulling the awning membrane outward in the shading system design.
Keywords: Movable shading, Wind pressure, Structural safety, CFD, Numerical stimulation