A pneumatic structure

摘要

A pneumatic structure (10) in the form of a barrel roof which has openings at the opposite ends thereof includes outer and inner walls (12,14) of a sheet or membrane material connected by a plurality of partition walls (16) in the form of ribs provided therebetween to define a plurality of air compartments in the form of ribs between the outer and inner walls. The partition walls (16) includes a plurality of openings (18) for fluid communication between adjacent air compartments. The pneumatic structure (10) has specific dimensions defined as follows. $$ $ $ where\; a\; :\; the\; maximum\; opening\; width\; of\; the\; pneumatic\; structure\; (10);\; b\; :\; the\; total\; width\; of\; the\; pneumatic\; structure\; (10);\; c\; :\; the\; effective\; height\; (between\; ground\; and\; the\; maximum\; height\; of\; the\; inner\; wall\; (14);\; and\; d\; :\; the\; total\; height\; (between\; ground\; and\; the\; maximum\; height\; of\; the\; outer\; wall\; (12).\mathop{\mathrm{image}}$$$$