| 摘要 |
The specification describes a structural member (10) for the use as a chord (41, 42) for forming a roof truss (40) for a building. Broadly described is an elongated open structural (10) member having a cross section including a minor flange (12), a major flange (13), and a web (14) interconnecting said flanges and having a section axis (11a) at right angles to the longitudinal axis (11b) of the structural member (10) and passing through the flanges (12, 13) and wherein said web (14) includes a linear portion (17) substantially coincident with the section axis (11a) and a divergent portion (18) which extends to one side of said section axis (11a). The minor flange (12) extends to one side of the section axis (11a). The major flange (13) extends from the divergent portion (18) to the opposite side of the section axis (11a), and the section configuration is such that an inverted and reversed corresponding open member is nestable within the open structural member (10) with their respective linear section portions (17) alongside one another and with each minor flange (12) located in an abutting relationship against the underside of the adjacent major flange (13).
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