| 摘要 |
PCT No. PCT/GB97/01203 Sec. 371 Date Oct. 29, 1998 Sec. 102(e) Date Oct. 29, 1998 PCT Filed May 1, 1997 PCT Pub. No. WO97/42381 PCT Pub. Date Nov. 13, 1997A roofing truss (3) has an end plate (10) for engagement against a flange (1a) of a supporting I-beam (1). To aid assembly of the truss and I-beam and to locate the same after assembly the upper end of the plate (10) carries on the surface to face the I-beam a bifurcated guide means (11, 12) arranged to extend over the upper portions of the flange (1a) and to engage on either side of a central web (1b) of the I-beam (1). |
