Maintenance and reinforcing apparatus for section enlargement for reinforcing bearing power of pier in reinforced concrete bridge

摘要

The present invention relates to the cross-sectional close-up rehabilitation construction method using a cross-sectional close-up rehabilitation device for bearing reinforcement pier in a reinforced concrete bridge to enhance the load bearing capacity by expanding the cross-section of the pier of the existing bridge structure, the outer peripheral surface of the piers installed to be a plurality of installation on a pier length the base steel plate at a predetermined interval, and at regular intervals in the base iron plate attached to the pressure steel plate, and cross the retainer of the upper and lower portions of the pressure steel plate "c" shape having a certain size, but, grooves are installed to face to the outside installed a vertical reinforcement in bridge columns longitudinally in a groove formed by both impellers, the strand is in the retainer provided alternately on the upper and lower parts of the vertical steel reinforcing above pressure device is installed in the pressure device installed over the peripheral surface to the vertical reinforcement pier installed between the groove, one end of the strand is "d" shaped To after the one-way strand using the anchorage to the fixing holes formed in the protruding portion of the one side of the fixing device fixing the strand anchorage on the other side has to pass through the one end of the strand is installed over the outer peripheral surface of the pier settled using the anchorage sectional enlarged rehabilitation the mold to the outside after the connection to Strand tensile yuapjaek the strand up the device, and is installed through the one end of the strand fixing device using the anchorage after tension the strands conducted through the operation of fixing the fixing hole in the whole of the pier installation and curing it by placing the concrete on the rehabilitation to enhance the load bearing capacity of the piers to expand the cross-section of the existing piers.