| 摘要 |
A method for forming a domed space frame, comprising assembling and pivotally interconnecting plural longitudinally extensible elongate elements into a planar grid frame array; pivotally anchoring ends of the elongate elements at the grid frame periphery; securing a gas-tight flexible extensible membrane to the grid frame; anchoring the membrane around the periphery of the grid frame in a gas-tight manner; and introducing pressurized gas under the membrane to inflate it and thereby raise the grid frame into a domed configuration, with a consequential extension of the elongate elements. When each elongate element has extended to a predetermined ultimate length, an arresting means associated therewith becomes operative and prevents any further change in the length of that elongate element. When all the elongate elements are so arrested, the gas pressure is released from beneath the membrane, and a self-supporting domed space frame is then available for use. |
