| 摘要 |
The present invention provides a cold formed joist that can be used in a variety of construction applications. The present cold formed joist consists of three elements, each formed from sheet metal: an upper chord, an intermediate web, and a lower web. These three elements can be produced in different dimensions. The upper chord further consists of a downwardly facing receiving channel adapted to receive the upper edge of the intermediate web, and two upwardly facing channels. The lower chord consists of an upwardly facing receiving channel that is adapted to receive the lower edge of the intermediate web.
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