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Project beam-column joint for reverse building method

A beam-column joint and reverse method technology, which is applied in infrastructure engineering, excavation, construction, etc., can solve problems such as difficulty in connecting steel bars

Inactive Publication Date: 2014-03-12
EAST CHINA ARCHITECTURAL DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of this joint completely solves the problem of difficult steel bar connection at the beam-column joint position, broadens the idea of ​​beam-column joint structural beam steel bar connection, and this joint has the advantages of clear force transmission and convenient construction

Method used

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  • Project beam-column joint for reverse building method
  • Project beam-column joint for reverse building method
  • Project beam-column joint for reverse building method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Taking the circular steel pipe concrete column as an example, other forms of steel columns can be implemented by referring to this node.

[0019] Such as figure 1 and figure 2 As shown, after the foundation pit is excavated to the elevation of the bottom of the inverted horizontal structural beam, the steel ring plate 3 is welded to the corresponding elevation of the main reinforcement 2 of the structural beam outside the steel pipe concrete column 1, and stiffeners 4 are arranged at vertical intervals. The steel ring plate 3 The width meets the welding requirements of the main reinforcement of the structural beam. If the width of the steel ring plate 1 is limited, it can be partially widened within the width of the structural beam 5. The thickness of the steel ring plate 3 needs to meet the force transmission requirements of the main reinforcement 2 of the structural beam. After the steel ring plate 3 and the stiffener 4 are welded, the structural beam main reinforce...

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Abstract

The invention belongs to the constructional engineering field and relates to a project beam-column joint for a reverse building method. The technical scheme of the project beam-column jpint for the reverse building method is as follows: after a foundation pit is excavated below the bottom elevation of a structural beam, a steel ring plate is welded in an elevation position opposite to the position of the main reinforcement of the structural beam at the outer side of a concrete filled steel tubular column; the width of the steel ring plate meets the welding requirement of the main reinforcement of the structural beam; the thickness of the steel ring plate meets the force transfer requirement of the main reinforcement of the structural beam. The main reinforcement of the structural beam transfers force to the main reinforcement of the structural beam of the adjacent span through the steel ring plate. The joint has the advantages that the connection of the reinforcements of the structural beam and force transfer among the reinforcements of the structural beam in the position of the beam-column joint in a reverse building foundation pit project are realized successfully, and the trouble of different traversing through the reinforcements of the beam-column joint to technicians in a field for a long time is solved.

Description

technical field [0001] The invention belongs to the beam-column node structure of a fixed building, and can be widely used in foundation pit engineering implemented by the reverse method. Background technique [0002] The upside-down method is a construction method that combines the main structure and the supporting structure in an all-round way, that is, the basement exterior wall is combined with the enclosure wall, the horizontal structural components are combined with the horizontal support system, and the vertical structural components are combined with the temporary column system. . The upside-down method has become a major technical hotspot in the field of foundation pit engineering because of its advantages such as simultaneous construction up and down to save the main project period, high support rigidity to strictly control the deformation of the foundation pit to protect the environment, and the use of the main structure as support to save engineering costs. And ...

Claims

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Application Information

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IPC IPC(8): E04B1/58E02D17/04
Inventor 刘若彪翁其平王卫东
Owner EAST CHINA ARCHITECTURAL DESIGN & RES INST
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