| 摘要 |
An expandable reinforcement for use in connection with a building method wherein a concrete structure is erected by inflation of an underlying air impervious membrane, the reinforcing structure being arranged in the form of a regular polygon and reinforcing elements radiate from each vertex of the polygon to each other vertex, there being a distribution of the end points of said reinforcing elements at any vertex. The reinforcing elements which elongate during inflation are constructed of two rods, one hooked at one end and the other at the other end, with the unhooked ends free, and the rods slidably disposed within a coil spring. A method of vibrating the inflated structure is also disclosed.
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