Tower crane for civil engineering

The utility model provides a tower crane for civil engineering. The tower crane comprises a concrete fixed base structure and a tower body, wherein a swing mechanism, a jacking mechanism, a cab, a lifting arm and a balance arm are arranged on the tower body; the tower crane is characterized in that a lifting platform is arranged in the tower body; the jacking mechanism is arranged on a side face of the top of the tower body; the swing mechanism is arranged on the top of the tower body; a tower top is arranged above the swing mechanism; the lower end of the tower top is embedded in the swing mechanism; the cab is arranged on a side wall of the top of the tower top; the lifting arm and the balance arm are linearly arranged on the top of the tower top; a tower cap is arranged above the lifting arm and the balance arm; the tower cap and the tower top are on the same line; and a balance arm diagonal member is arranged between the tower cap and the balance arm. The tower crane disclosed by the utility model is high in stability, good in balance, easy to operate, safe and reliable to use, high in working efficiency and low in time consumption, saves lots of manpower, material resources and financial resources, has very considerable economic benefits and is particularly suitable for various lifting occasions.