| 摘要 |
<p>A curved fibre reinforced resin composite reinforcing material is produced by forming a formed body by in turn winding a bundle of the thermosetting resin impregnated reinforcing fibres which is twisted to a predetermined extent around the surface of a core portion of a bundle of thermosetting resin impregnated reinforcing fibres and applying a thermosetting process to the formed body while subjected to a tension to produce a distortion amount of 500-3000 ν/m in an axial direction thereof, or by fixing the formed body formed by winding a bundle of thermosetting resin impregnated reinforcing fibres around the twisted core portion in a curved mold curved at a predetermined radius of curvature and subjecting the formed body to thermosetting processing, whereby a fibre reinforced resin composite material having a high strength is provided at low costs which is useful as a substitution material for an iron rod or PC steel wire.</p> |
