Method and apparatus for the installation of a lifting loop, and part forming a lifting loop
AssigneeElematic Oy Ab
InventorPekka Korkiamäki
Life of this patent
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Abstract
A method for the installation of a lifting loop in a fresh hollow core slab, said hollow core slab having its top surface broken for an opening substantially in line with a neck between the cavities, and said method comprises placing in the obtained opening a lifting loop-forming part set to bear against the hollow core slab's pre-stressing strands, the lifting loop-forming part's end sections being placed under the hollow core slab's pre-stressing strands by providing either a permanent or temporary deformation in the lifting loop-forming part. The invention relates also to an apparatus for implementing such a method, as well as to a lifting loop-forming part compatible with the method.
Claims11
A method for the installation of a lifting loop in a fresh hollow core slab, wherein said hollow core slab having a top surface broken for an opening substantially in line with a neck between cavities therein, said method comprising placing in the obtained opening a lifting loop-forming part set to bear against pre-stressing strands of the hollow core slab, wherein the lifting loop-forming partcomprises end sections that are placed under the pre-stressing strands by providing either a permanent or temporary deformation in the lifting loop-forming part during the placing of the lifting loop-forming part.
An apparatus for the installation of a lifting loop in a fresh hollow core slab, said apparatus comprising means for placing a lifting loop-forming part in an opening broken in a top surface of the hollow core slab substantially in line with a neck between cavities therein, and means for setting the lifting loop-forming part to bear against pre-stressing strands of the hollow core slab, wherein the means for setting the lifting loop-forming part to bear against the hollow core slab's pre-stressing strands comprise means for providing either a permanent or temporary deformation in the lifting loop-forming part, said strain during placement of the end sections of the lifting loop-forming part under pre-stressing strands.
Dependencies are inferred from the claim text.