Tower crane foundation structure

The invention provides a tower crane foundation structure. The tower crane foundation structure comprises a supporting frame and a steel box beam group, the steel box beam group is supported by brackets of a supporting frame, a tower crane is supported by the steel box beam group, and the supporting frame penetrates through a basement bottom plate above the basement bottom plate from the lower part of the basement bottom plate of a high-rise building. According to the tower crane foundation structure, the steel box beam group is arranged on the brackets of the supporting frame, horizontal displacement of the supporting frame is reduced, and potential safety hazards are reduced. 本发明提供了一种塔吊基础结构，包括支撑框架和钢箱梁组，所述钢箱梁组由所述支撑框架的牛腿支撑，所述塔吊由所述钢箱梁组支撑，所述支撑框架从高层建筑的地下室底板下方贯穿所述地下室底板至所述地下室底板上方。本发明通过将钢箱梁组搁置在支撑框架的牛腿上，减少了支撑框架的水平位移，从而减小了安全隐患。