Section enlargement repairing and reinforcing apparatus for reinforcing earing power of reinforced concrete structures by introducing prestress to entended section

摘要

The subject innovation is rehabilitation construction by introducing a prestress in the enlarged cross-section to install a cross-sectional close-up rehabilitation device around the pier in order to enhance the bearing capacity of the bridge of reinforced concrete structure using a cross-sectional close-up rehabilitation device to enhance the load bearing capacity of the bridge It relates to a method, at regular intervals around the pier after forming the insertion groove of a predetermined depth which can be inserted into the H-shaped beam with vertical rebar in the piers supporting the bridge is a side flange of the H-shaped beam in contact with the pier side installation while the lower part, and installation inserted in the vertical reinforcement, but placing a reinforcement above the bottom of the groove having a constant gap between the H-shaped beams and inserted into the insertion groove, and install the horizontal reinforcing bars in the abdomen of the type of the H-beam , homnae of the strand to strand guide device at the other side surface of the flange of the H-shaped beam after the fixed installation Strand guiding apparatus The cross section after be installed over a strand using a two-way strand retainer fixation using the anchorage after the introduction of tensile force by using a strand tensile yuapjaek the fixing Strand the anchorage of one end after installing the cross-sectional close-up rehabilitation device after installing the mold so as to form a uniform coating thickness on the outside of the zoom rehabilitation device pouring the concrete to cure relates to rehabilitation construction method for close-up cross-section of the pier enhance the load bearing capacity.