Performance Improving Design and Verification of Prevention from Ceiling Board Falling and Seismic Load Transmit

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This study deals with the single layer lattice EP (Elliptic Parabolic) shell ceiling structure with the vertical plane frames such as a plane arch trussed frame. The static numerical analyses of the structure are carried out to investigate the behavior such as the displacement and the stress. And the validity of the practical calculation method is shown in comparison with the analyses and the other horizontal structure element such as X shape braces. It is also shown that the method is useful for understanding the structural behavior and determining the member ofthe lattice shell.