A large-span cantilever component construction system and its construction method

Abstract

The invention discloses a large-span cantilevered member construction system and a construction method. The construction system comprises: foundation pit supporting crown beam, structural floor, profiled steel foundation, round steel pipe, formwork bracket and outer scaffolding; foundation pit supporting crown beam It is a reinforced concrete continuous beam; the setting position of the structural floor is higher than the foundation pit support crown beam; the U-shaped connecting device is embedded in the structural floor; the first end of the steel foundation is connected with the structural floor through the U-shaped connecting device; The lower end of the steel pipe is fixedly connected with the foundation pit supporting crown beam, and the upper end of the round steel pipe is connected with the second end of the profiled steel foundation; the formwork bracket is set on the profiled steel foundation; the outer scaffold is set on the profiled steel foundation, and the outer scaffolding and the formwork bracket are arranged at intervals . The above solution effectively solves the problem that the large-span cantilevered member support frame and the outer scaffolding are difficult to erect at the same time, ensures that the large-span cantilevered member is formed at one time, facilitates the early insertion of subsequent processes, and shortens the overall construction period.

Description

technical field [0001] The invention belongs to the technical field of large-span cantilever component construction, and in particular relates to a large-span cantilever component construction system and a construction method thereof. Background technique [0002] Cantilevered building components refer to an architectural effect achieved by building components using cable structures or other structures. Cantilever structure is one of the common structural forms in engineering structures, such as awnings, overhanging eaves, external balconies, overhanging corridors, etc. in construction projects. This structure is a beam or plate cantilevered from the main structure to form a cantilever structure. It is still a beam-slab structure in essence. With the rapid development of technology, in contemporary architecture, the scale of cantilever is getting bigger and bigger, and there are more and more ways of application, and it is also playing an increasingly important role in the ...

AI Technical Summary

Problems solved by technology

Since the external scaffolding system is erected from the bottom of the building foundation, the backfill construction cannot be carried out before the external scaffolding system is removed, which seriously restricts the construction period of the backfilling soil; as the external scaffolding system occupies the construction of the external wall and the waterproof protection of the external wall, there is leakage of the external wall. Leakage risk; In addition, the cantilevered components adopt the basic structure form of cantilevered I-beam, the section of I-beam is selected larger, the weight of I-beam is larger, it is not easy to assemble and dismantle, which greatly increases the construction cost

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