Study on Wind Response on Horn-Shaped Membrane Structure

Abstract

Wind load is the most dominant load for lightweight structures such as membrane roofs. Particularly since the horn-shaped (conic) membrane roof has a complicated shape, the basic data for the design wind load on the horn-shaped membrane roof has not been reported. In this paper, the authors focus on the wind-load on one-unit horn-shaped membrane roof with rise-span ratio of 0.2, and report wind tunnel tests for it. From these tests, the wind pressure coefficient, fluctuating wind pressure coefficient and peak wind pressure coefficient are provided under the natural wind of terrain. In addition, the comparison between static response analyses and dynamic response analyses using the result of wind tunnel test indicates the gust factor based on stress of the membrane.