| 摘要 |
PCT No. PCT/AT80/00003 Sec. 371 Date Oct. 27, 1980 Sec. 102(e) Date Oct. 24, 1980 PCT Filed Jan. 29, 1980 PCT Pub. No. WO80/01818 PCT Pub. Date Sep. 4, 1980.A reinforcing insert for a tension zone of a ferroconcrete member comprises two or more closely juxtaposed, parallel rods of different lengths and with staggered extremities, each shorter rod being connected at least at its ends to an adjoining longer rod by elongate weld joints of sufficient strength to transfer its tensile stress to that longer rod. The weld joints may be formed by transversely inserting a fusible wire between two reinforcing rods and pressing the latter together with the aid of two electrodes between which a heating current is being passed. Laterally projecting parts of that wire, left in place after the welding operation, may serve as anchor studs and/or as spacers establishing the requisite separation from associated falsework. |
