Steel latticed column combined-type tower crane infrastructure in foundation pit and construction method

Abstract

The invention discloses a steel latticed column combined-type tower crane infrastructure in a foundation pit. The steel latticed column combined-type tower crane infrastructure comprises the foundation pit and cast-in-place piles prefabricated at the bottom of the foundation pit, wherein the cast-in-place piles are sequentially connected with steel latticed columns, steel columns, bearing platforms and tower crane pre-embedded joint foundations from bottom to top, concrete core columns are arranged in the steel latticed columns, multiple in-pile longitudinal ribs forming a steel bar cage are arranged in the cast-in-place piles, the steel latticed columns are welded and fixed to the steel bar cage in the cast-in-place piles, detachable holding hoops are fastened to the sections, welded with the steel latticed columns, of the cast-in-place piles and are fixed through holding hoop bolts, the problems of large tower crane foundation construction difficulty and the like are solved by utilizing the characteristics of light weight, small material consumption, convenient construction operation and the like of an assembled hollow zigzag bearing platform, and the steel latticed column combined-type tower crane infrastructure has better technical and economic benefits. The sections, connected with a steel latticework, of the piles are reinforced by adopting post-mounted detachable holding hoops, and the structural stability is increased. The prefabricated concrete core columns are post-mounted in the steel latticed columns to increase rigidity.

Description

technical field [0001] The invention relates to the field of construction engineering, in particular to a steel lattice column composite tower crane foundation structure in a foundation pit and a construction method. Background technique [0002] With the rapid development of the national economy, communication technology and control technology, the rise of various high-rise, super high-rise buildings and large-scale construction projects, the monitoring technology of tower cranes is also constantly improving. The requirements for amplitude, wind speed and lifting moment are getting bigger and bigger, and they are more and more widely used in the construction process of modern buildings. [0003] At present, most of the tower cranes (hereinafter referred to as tower cranes) used in China are constructed according to the equipment foundation provided by the tower crane manual. Due to the different needs of the construction site and the different geological conditions of the s...

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Problems solved by technology

[0004] The object of the present invention is to provide a steel lattice column composite tower crane foundation structure and construction method in the foundation pit, which can improve the problems of high cost and difficult construction caused by using the same foundation for different tower cranes in the traditional tower crane foundation. The hollow back-type cap has the characteristics of light weight, less materials, and convenient construction and operation to solve the problems of difficult foundation construction for tower cranes, and has good technical and economic benefits

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