The invention discloses a method for reinforcing a bridge special-shaped
pier stud by prestressing tendons. The method comprises a method for reinforcing a cantilevered area in a portal type
pier studwith inclined struts. The specific steps are as follows: S1, construction preparation, S2, measurement and
staking-out, S3, constructing a temporary
buttress and arranging a
scaffold, S4, sealing surface cracks, S5, jacking and unloading, S6, installing pressure plates, S7, embedding steel bars, S8, installing a prestressing device, S9, making an installation template, S10, concrete pouring , S11, prestressing tensioning, S12, grouting and sealing, S13, restoring a beam body, S14, and demolishing the
scaffold and the temporary
buttress. By applying the method, the bridge is synchronously jacked up, the method of enlarging the section, the method of external prestressing reinforcement and the method of crack grouting are organically combined, there is no exposed anchorages and steel bars outside the
pier stud after reinforcement, the appearance of the reinforced landscape bridge pier stud is basically not affected, and the method can be applied to the reinforcement conditions of urbanlandscape bridges with high requirements on appearance.