关键词: 容许应力理论, 加固层, 破坏方程, 增大截面法, 变形协调

Abstract: Based on the allowable stress theory, considering the stress characteristics of reinforcing layer before and after reinforcement, and guaranteeing the reinforcing layer and the original structure distortion coordination as a premise, a equation about reinforcing layer thickness section destruction was established before reinforcement to determine the reasonable thickness of reinforcing layer. It provides the theory basis to guarantee the reinforcement structure works, reduces the trial calculation and the checking calculation work load, and promotes the theory development of stone arch bridge structure reinforcement.

Key words: allowable stress theory, reinforcing layer, destruction equation, section enlcorgement method, distortion coordination