| 摘要 |
<p>A wide range of applications is made possible for a building element comprising a hollow column which can have concrete cast in it, previously used only for silos. The column is assembled from waling elements incorporating retainer elements brought into engagement with each other. Each wall element has a protruding casting anchor on the inside face. Each can consist of a sheet metal strip, with edges bent back in a channel shape to form retainers, side edges being sloped and folded through 180 deg. There are pref. four wall elements in a column, which may be mutually offset.</p> |
