A modular rapid construction method for deep foundation pit structure beam reinforcement skeleton

Abstract

The invention discloses a modular rapid construction method for the structural beam reinforcement skeleton of a deep foundation pit, which comprises segmental division of the structural beam reinforcement skeleton, prefabrication of the structural beam reinforcement skeleton, hoisting of the structural beam reinforcement skeleton, lowering and rotation of the structural beam reinforcement skeleton, and construction of the structural beam reinforcement skeleton. Steps such as connection of beam reinforcement skeleton; firstly, the present invention uses BIM technology in combination with the actual positional relationship between the enclosure structure and support system of deep foundation pit to establish a three-dimensional real scene model, simulates the hoisting and assembling process of structural beam reinforcement skeleton, and rationally connects structural beam reinforcement skeleton Segment division ensures smooth hoisting; the prefabricated tire frame can prefabricate the structural beam reinforcement skeleton segmented on the ground in advance, without occupying the construction period of the main line, and realize the rapid construction of the deep foundation pit structural beam reinforcement skeleton. This construction method effectively solves the problem of slow construction progress of structural beams in the limited space of deep foundation pits. The method has the characteristics of simple operation, good safety, and high work efficiency, and has good social and economic benefits.

Description

technical field [0001] The invention belongs to the technical field of steel bar construction for structural beams, and in particular relates to a modular rapid construction method for steel bar skeletons of structural beams in deep foundation pits. Background technique [0002] The traditional deep foundation pit structure beam reinforcement construction method is to directly carry out on-site binding work at the bottom of the pit after the floor cushion and waterproofing construction. It is necessary to erect temporary supports and reserve a space for manual operation, and then tie the reinforcement, drop the beam, adjust and align the connection Wait. Affected by the enclosure structure and internal support system, the working space in the pit is limited, and the traditional construction method has the following shortcomings: first, the installation of steel bars must be carried out after the waterproof protective layer reaches a certain strength; second, the installation...

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Problems solved by technology

Affected by the enclosure structure and internal support system, the working space in the pit is limited, and the traditional construction method has the following shortcomings: first, the installation of steel bars must be carried out after the waterproof protective layer reaches a certain strength; second, the installation of steel bars on site is affected by cross-construction between processes , part of the reinforcement of the bottom slab needs to be carried out after the installation of the steel reinforcement of the beam body is completed. The process takes a long time, and the concrete pouring of the bottom slab cannot be completed quickly, which prolongs the exposure time of the foundation pit and increases potential safety hazards. Third, the quality of the on-site reinforcement installation is low. It is difficult to control the precision of steel bar connection; Fourth, in order to meet the installation and operation space of the steel bar of the underfloor turning beam, the excavation of the trench needs to be widened, resulting in waste of concrete

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