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Recently, wooden grid wall has been used for the purpose of bearing wall and seismic strengthening. Generally, the member spacing of grid wall is small for initial stiffness and strength. On the other hand, the authors propose the wall of rough strength that is expected to avoid brittle fracture and to be sufficient energy absorption performance. This paper figures out effect of grid spacing by experiments and numerical analysis.

The authors reported previously that a possible beneficial effect for lenticular pneumatic structures can be obtained by not controlling internal air-pressure but instead setting an appropriate initial internal air-pressure which prevents the membrane structure from becoming unstable under strong winds. The principal aim of this study was to develop a method of setting this internal air-pressure. Firstly, dynamic data was collected through wind tunnel tests using both a rigid and a flexible model for the purpose of understanding the wind pressure coefficient under strong winds and the dynamic behavior of fluctuating internal air-pressure. Next, a time-history wind response analysis was performed to evaluate the fluctuating internal air-pressure under strong winds, and then compared with the results of flexible model by the wind tunnel test. Finally, a methodology for setting the internal air-pressure was proposed based on the data obtained from the static and the dynamic numerical analysis.

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