Characteristic of Wind Pressure Distribution on the Roof of Hyperbolic Paraboloid Spatial Structures

Abstract

The roof surface of spatial structures is often damaged or destroyed because of its light-weight roof structure and materials. Many of large-scale stadiums have roof structure framed with steel truss or stay cable and wrapped or covered with membrane material Teflon, and this membrane material is easily damaged and its loss is quite serious. Through such examples, it was found that the studies on wind-proof design of roofs of large space structures were not sufficiently made. This study conducted wind pressure experiment and fluid analysis in order to examine the aerodynamic characteristic of the roof shape of hyperbolic paraboloid spatial structures. Although the biggest minimum peak wind pressure coefficient was shown in the edges of the roof in the wind origin direction, it decreases with the advancement to the longitudinal direction of the roof 키워드 : 풍압실험, 쌍곡선, 피크외압계수, 직사각형 지붕, 정사각형 지붕