Abstract: Structural wall reinforcement method and apparatus for reinforcing a wall comprising a plurality of post-tensioned cable assemblies and wire mesh embedded in a layer of concrete-like material for applying compressive forces to the wall.

Abstract: A column such as a concrete bridge or overpass column is reinforced by transverse post tensioning a steel wire around the length of the column. Apparatus for winding the wire around the column includes a first support frame which is attached to the column and a second support frame which is movably positioned around the column. The second support frame is movably supported on the first support frame whereby the second support frame can move axially along the length of the column. The second support frame includes a fixed inner ring, and a rotatable outer ring engages the inner ring in a tongue-in-groove fashion. The outer ring supports a spool of wire and a tensioning spool, and a drive motor and pinion mounted to the fixed inner ring drives the outer ring gear and rotates the spool of wire around the column as the second support frame is translated axially along a length of the column. The first support frame is repeatedly moved along the column until the full length of the column has been wound with wire.

Abstract: A protective tendon tensioning anchor assembly comprising an anchor plate, a sealing cup and a resilient sealing ring for providing corrosion protection for exposed portions of a tendon secured in the tendon tensioning anchor assembly.

Abstract: A soil retaining system, including an upright soil retaining wall of modular facing panels and a number of horizontal wire mesh reinforcement units, including spaced parallel wires ending in hole forming loop and interconnected by perpendicular crossbars. The mesh units are connected in tiers to the retaining wall and rest in the soil behind the wall. The connection of each wire in a mesh unit is made by a clevis member embedded into the back side of the panel and a bolt and nut assembly or an elongated pin member for attaching the wires and the clevis.

Abstract: Disclosed is a method and apparatus for forming continuous slabs having parallel longitudinally extending post-tensioned tendons therein.

Abstract: A protective apparatus for tendons in tendon tensioning anchoring assemblies comprising a top member, a bottom member and a sealing cap which are attached to an anchor plate for providing corrosion protection for exposed portions of a tendon anchored in the tendon tensioning anchor assembly.

Abstract: A soil retaining system, including an upright soil retaining wall of modular facing panels and a number of horizontal wire mesh reinforcement units, including spaced parallel wires ending in bulbous portions and interconnected by perpendicular crossbars. The mesh units are connected in tiers to the retaining wall and rest in the soil behind the wall. The connection is made by a female member embedded into the back side of the panel with internal threads, into which a male member is threadedly received with an internal bore of a suitable size to pass the wires but not the bulbous portions which bear against the forward end of the bolts. In this manner, with the wires seated within a corresponding male member, the facing panels and mesh units are connected by screwing the male member into the female member.

Abstract: A shuttle system using first and second cable driven cars and a drive cable for transporting passengers between first and second spaced apart stations on laterally spaced apart car supporting guideways is disclosed herein. The system is designed such that a first guideway is necessarily shorter than the second guideway by a predetermined amount. Therefore, while the first passenger car can be moved along the first guideway to and between the spaced apart stations by means of the drive cable directly, the second passenger car cannot be moved along the second guideway entirely to and between the stations by means of the drive cable directly. Rather, because the first guideway is shorter than the second guideway, the second car can be moved directly by the drive cable only between one of the stations and a predetermined point on the second guideway short of the other station by an amount equal to the difference in length of the two guideways.