English：

To study the reinforcement technology of high,rise reinforced concrete shear wall replacementconstruction, based on a high,rise residential project in a certain community, numerical simulation wasused to analyze the vertical stress distribution and average vertical compressive stress changes of shearwalls during concrete replacement, as well as the vertical compressive stress difference changes of twobatches of newly built shear walls after wall replacement. The research results indicate that during theconcrete replacement process of shear walls, the vertical compressive stress on the first batch of newlypoured concrete gradually decreases,while the vertical compressive stress on the second batch of newlypoured concrete gradually increases; In the subsequent construction of buildings, the higher the floor, thegreater the vertical compressive stress on the newly poured walls; As the building floors increase, exceptfor a small portion of walls where the average vertical compressive stress difference gradually increases,the average vertical compressive stress difference of other walls gradually decreases. At this stage, thestress values of the two batches of newly constructed concrete wall sections gradually approach each other.In the concrete replacement project of shear walls, the construction sequence should be considered duringthe replacement. The replacement should start from the parts that have less impact on the overall stabilityof the structure, and then gradually move towards the core area, ultimately achieving the purpose ofconcrete replacement.