Construction method of a fabricated building mixed tower crane

Abstract

The invention discloses a construction method of a fabricated building mixed tower crane. The construction method involves a mixed tower crane applied to a tower crane foundation and comprises the following steps of installing a large tower crane embedment and a small tower crane embedded part on the tower crane foundation, and enabling the upper ends of the large tower crane embedment and the small tower crane embedment to extend above the tower crane foundation; sequentially outwards arranging a tower crane foundation outer cantilever plate and post-cast expansion concrete on the outer sideof the tower crane foundation; pre-embeding water stop steel plates between the tower crane foundation and the tower crane foundation outer cantilever plate as well as between the tower crane foundation outer cantilever plate and the post-cast expansion concrete; and a garage raft foundation is arranged on the outer side of the post-cast expansion concrete. According to the construction method, alarge tower crane and a small tower crane are arranged on the tower crane foundation, and meanwhile the protection effect on the large tower crane and the lower tower crane can be realized when the large tower crane embedment and the small tower crane embedded part are not needed.

Description

technical field [0001] The invention relates to the technical field of building tower cranes, in particular to a construction method of a prefabricated building mixed tower crane. Background technique [0002] The prefabricated concrete shear wall structure building is divided into the bottom cast-in-place layer and the prefabricated component assembly layer according to the design requirements. The bottom cast-in-place layer uses a small tower crane foundation to reduce rental costs and improve construction speed and efficiency. , The lifting weight is greatly increased, and the use of small tower crane foundations cannot meet the construction safety. Large tower crane foundations are required, and the cost of machinery rental has also increased significantly. [0003] The traditional construction method uses large-scale tower cranes throughout the construction process, so the construction of the basement and the main building is realized through large-scale tower cranes. H...

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Problems solved by technology

[0002] The prefabricated concrete shear wall structure building is divided into the bottom cast-in-place layer and the prefabricated component assembly layer according to the design requirements. The bottom cast-in-place layer uses a small tower crane foundation to reduce rental costs and improve construction speed and efficiency. , the lifting weight is greatly increased, and the use of small tower crane foundations cannot meet the construction safety. Large tower crane foundations are required, and the cost of machinery rental has also increased significantly

[0003] The traditional construction method uses large-scale tower cranes throughout the construction process, so the construction of the basement and the main building is realized through large-scale tower cranes. However, the existing prefabricated building tower crane construction methods cannot use small tower cranes in the construction of the basement and the bottom cast-in-place layer. When the large-scale tower crane is replaced when reaching the prefabricated component assembly floor of the main building, only large-scale tower cranes can be selected for the construction of the basement and the main building, thus increasing the construction cost

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