Abstract:
A rope structure comprising a plurality of formed composite strands. Each of the formed composite strands comprises fiber material and matrix material. The fiber material within the matrix material is twisted. The shapes of the plurality of formed composite strands are predetermined to facilitate combination of the plurality of composite strands into the rope structure.
Abstract:
A twisted FRP structure having sufficient strength and flexibility is disclosed which comprises a rod member (S4) disposed centrally and a plurality of side strands (S1-S3, S5-S7) twisted around the rod member (S4) in the same direction at a predetermined pitch. At least the side strand comprises a composite strand having an FRP element (1) formed by impregnating fibers with an uncured thermosetting resin and a thermoplastic coating (16) on said FRP element, the thermosetting resin being cured after the side strands are twisted around the rod member. The twisting pitch is not less than 25 times the outside diameter of the FRP element in the side strand.
Abstract:
A twisted FRP structure having sufficient strength and flexibility is disclosed which comprises a rod member (S4) disposed centrally and a plurality of side strands (S1-S3, S5-S7) twisted around the rod member (S4) in the same direction at a predetermined pitch. At least the side strand comprises a composite strand having an FRP element (1) formed by impregnating fibers with an uncured thermosetting resin and a thermoplastic coating (16) on said FRP element, the thermosetting resin being cured after the side strands are twisted around the rod member. The twisting pitch is not less than 25 times the outside diameter of the FRP element in the side strand.
Abstract:
Provided are a high-strength fiber composite and an applied product thereof, whereby it is possible for the inherent tensile strength of high-strength fiber yarns to be obtained, even when used in applications in which bending stress occurs, such as wires, or when stored while wound around a drum or the like. This high-strength fiver composite has a core produced by imparting twist to a high-strength fiver bundle produced by bundling high-strength fiber yarns, and a stiffening the twisted high-strength fiber bundle with a stiffening agent. In this high-strength fiber composite, the high-strength fiber yarns are resistant to breakage even when flexed, have a superior shearing strength, and can maintain the inherent tensile strength of high-strength fibers, even when used in applications in which bending stress occurs, such as wires, or when stored while wound onto a drum or the like. The strand structure, which has a strand construction composed of two or more of the high-strength fiber composites twisted together, maintains the inherent strength of the high-strength fibers, and affords more consistent tensile strength, as compared with when an equal number of high-strength fiber composites lacking the strand construction are used.
Abstract:
A push-pull steel cable (10) comprises a core (12) and an outer layer of filaments (16) twisted around the core (12). The cable (10) is provided with an external coating (20) of polyethylene terephthalate. The coating (20) gives to the cable (10) a good resistance against corrosion, a good weatherability, a good adhesion and adhesion retention and a friction resistance which is comparable to the friction resistance of a cable with a nylon coating. The cable (10) can be used as a brake cable, a shifting lever cable or a window elevator cable.
Abstract:
Pour précontraindre des ouvrages de construction au moyen de torons ancrés, on utilise un toron composé plusieurs fils pleins toronnés (6, 7) entre lesquels il comporte des interstices internes (i). Certains au moins de ces fils (7) ont une portion de leur surface qui est exposée de manière que l'ancrage du toron soit facilité et que, après installation du toron dans une gaine dans laquelle on injecte un coulis, le coulis vienne au contact de ces portions de surface exposées. Une matière de remplissage est présente dans les interstices internes du toron de manière à empêcher l'infiltration du liquide inclus dans le coulis entre les fils et le cheminement de ce liquide le long des interstices (i).