| 摘要 |
A system and method for simplified construction and erection of planar devices such as walls comprises two types of steel channel members twisted together at right angles to form a tight, weldless and fastener-less connection. Slots in one member mate with flange elements of the other member to form the tight connection. Both steel members may be cold rolled from flat steel stock, the mating slots being cut into the flat steel stock prior to rolling. Though the resulting connections rely upon the strength of the steel itself instead of fasteners or welds, auxiliary screws or other fasteners optionally may be employed to prevent untwisting of the members after installation.
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