| Summary |
When the distance between drop cords is relatively large・景t is thought that the curvature of the membrane surface caused by the internal pressure has a great influence on the shape and structural characteristics of dual wall air-inflated structures. In such cases・慶urvature of membrane surface must be considered in the process of form finding and structural analysis. The paper refers to the necessity to consider the curvature change in shape analysis.
Firstly・荊he differences of structural behavior of 6 types of flat dual membrane structure models are shown through shape analysis (inflation).
Secondly・荊he shape stabilizing conditions of flat dual membrane structure which has free boundary are represented by some equations.
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