Latticed column type abutment and pier concrete tower crane foundation and construction method thereof

Abstract

The invention discloses a latticed column type abutment and pier concrete tower crane foundation. The latticed column type abutment and pier concrete tower crane foundation comprises four cast-in-situbored piles, four latticed columns inserted into the cast-in-situ bored piles, a concrete foundation poured on the tops of the latticed columns, and pre-embedded foundation sections or pre-embedded bolts pre-embedded in the concrete foundations, wherein the concrete foundation is a cross beam type foundation; the tops of the lattice columns stretch into the concrete foundation, and are connectedto reinforcing steel bars at the four corners of the cross beam of the concrete foundation; and the pre-embedded foundation sections or the pre-embedded bolts are pre-embedded on the cross beam of theconcrete foundation. The latticed column and concrete abutment and pier combined tower crane foundation can solve the quality problem easily occurring in the welding of the steel structures between atraditional tower crane steel platform and the latticed columns very well, has very good effects on acceleration of the construction progress of the earthwork and the support of a foundation pit andreduction of the labor intensity of construction workers, and fully ensures the safety of large-scale engineering machinery in use.

Description

technical field [0001] The invention relates to the field of lattice-type foundation setting of tower cranes, a large-scale construction machine in the construction engineering industry. Background technique [0002] The lattice steel platform foundation of building construction tower cranes has been widely used in construction engineering. The method is to construct four bored piles in advance, and use the lattice columns inserted into the pile foundation to rise above the natural ground. The beams interconnect the tower crane standard sections and the lattice columns. [0003] The tower crane foundation with this type of structure is not very satisfactory from the perspective of the implementation effect on the construction site. The main problem is that the steel beam of the tower crane foundation cannot be reliably connected with the lattice column (the lower flange of the steel beam of the tower crane foundation is flat. , while the lattice column is four angle steels,...

AI Technical Summary

Problems solved by technology

[0005] The first is the root cleaning of the weld bead. The root cleaning of the weld bead before welding can only be judged by the perception, and it is not easy to achieve a completely satisfactory and reassuring level;

[0006] The second is on-site seam overhead welding. Overhead welding itself is the most difficult welding method in the welding process. It has very high requirements for the welder's technical level and welding experience, which is not easy to achieve at the construction site;

[0007] The third is that there is currently no reliable weld detection method for fillet welds, and the weld quality can only be checked by observing the weld surface, which is very random and accidental;

[0009] The fifth is that at most civil engineering construction sites, the technical level of the welders does not meet the requirements for steel structure welding

[0010] The sixth is that the installation unit of the tower crane foundation is generally the general contracting unit of the project, and the general contracting unit has few personnel who have professional knowledge of steel structures. Conduct inspection, evaluation and acceptance

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