| 摘要 |
An edge clamp assembly for an inflatable form membrane used in erection of a concrete shell comprises a steel channel having an internal width W mounted at the base of the shell with the longitudinal opening of the channel facing upwardly; a guide lip on one channel leg projects a short distance over the channel opening. A first rectangular wood rail is wrapped in an edge portion of the membrane and inserted into the channel, fitting loosely into the bottom of the channel; a second rectangular wood rail having a width just slightly smaller than W is inserted into the top of the channel, tightly filling the channel opening immediately below the guide lip and releasably clamping both rails and the edge portion of the membrane into the channel. |
