Construction technology of super high rise ultra-thin shear wall bearing heavy tonnage tower crane under energy saving and emission reduction

Lanzhou·Famous City Plaza Project There are two internal climbing boom tower cranes in the core tube of 1# building. From the 50th floor, the thickness of shear wall is reduced to 200mm, and the design wall thickness and reinforcement can not meet the stress requirements of boom tower cranes. Through the finite element analysis software ANSYS simulation analysis, the core tube shear wall and coupling beam are strengthened, the reinforcement is increased, and the concrete strength grade is improved. At the same time, the steel beam of the boom tower crane is reinforced to reduce the load borne by the shear wall, and then the seamless steel pipe and jack are used to push back the load of the steel beam from the bottom, which solves the problem of insufficient bearing capacity of the ultra-thin shear wall to the boom tower crane, makes the boom tower crane work normally, and ensures the construction safety and the construction period.