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Prefabricated column-prefabricated beam connection structure based on phosphorus-magnesium material and construction method

A technology for connecting structures and construction methods, which is applied in the direction of building structure and construction, can solve the problems of long curing time of post-cast concrete, reduce the turnover frequency of formwork and support system, and reduce the progress of the project, so as to achieve the guarantee of grouting density, Ensuring compactness and improving turnover frequency

Inactive Publication Date: 2019-10-11
GUIZHOU PHOSPHORUS MAGNESIUM MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Concrete poured after joints requires a long curing time, which will reduce the progress of the project and reduce the turnover frequency of formwork and support systems

Method used

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  • Prefabricated column-prefabricated beam connection structure based on phosphorus-magnesium material and construction method
  • Prefabricated column-prefabricated beam connection structure based on phosphorus-magnesium material and construction method
  • Prefabricated column-prefabricated beam connection structure based on phosphorus-magnesium material and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A connection structure of prefabricated columns and beams based on phosphorus and magnesium materials, consisting of C-shaped steel slots 1, connecting steel bars 2 with anchor heads, prefabricated columns 4, and prefabricated beams 5; the C-shaped steel slots are pre-embedded in prefabricated columns 4 , In the prefabricated beam 5; the two ends of the connecting steel bars 2 with anchor heads are inserted into the C-shaped steel slot 1 respectively; the C-shaped steel slot 1 is filled with phosphorus and magnesium grouting material 3;

[0044] The C-shaped steel slot 1 is made of steel material and is in the shape of a long strip with a C-shaped cross section. The back of the C-shaped steel slot 1 is welded to the steel anchor plate 6 embedded in the prefabricated component, the anchoring steel bar 8 or the longitudinal beam in the beam. Tendon 7;

[0045] Before pouring the phosphorus and magnesium grouting material 3, a grouting sealing plate 11 is installed at the ...

Embodiment 2

[0051] A connection structure between prefabricated columns and beams based on phosphorus and magnesium materials. C-shaped steel clamping grooves 1 are respectively embedded in prefabricated columns 4 and prefabricated beams 5, and the openings of C-shaped steel clamping grooves 1 are arranged oppositely; The two ends of 2 are respectively clamped into the C-shaped steel slot 1 of the beam and column, and the phosphorus-magnesium grouting material 3 is poured into the gap between the C-shaped steel slot 1 and the connecting steel bar 2 with the anchor; A connecting structure obtained by installing stirrups 9 on the connecting steel bars 2 with anchor heads in room 1 and setting up the formwork, and pouring phosphorus magnesium fine stone concrete 10 at the joints.

Embodiment 3

[0053] A construction method for the connection structure of prefabricated columns and beams based on phosphorus and magnesium materials, comprising the following steps:

[0054] 1. Materials, components and equipment preparation

[0055] 1.1 According to the project design requirements and progress, make C-shaped steel slot 1, steel bar with anchor head 2, grouting sealing plate 11, stirrup 9 in the factory, make prefabricated columns 4, beams 5 and other components, and transport them to the project site ;

[0056] 1.2 According to the project design requirements and progress, transport the formwork, phosphorus magnesium grouting material 3, phosphorus magnesium fine stone concrete 10 mixed dry material, grouting and pouring equipment to the project site;

[0057] Wherein, the C-shaped steel slot 1 is made of steel material, such as figure 2 As shown, it is in the shape of a long strip with a C-shaped cross section. The back of the C-shaped steel slot 1 is welded with the...

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Abstract

The invention discloses a prefabricated column-prefabricated beam connection structure based on a phosphorus-magnesium material and a construction method. The prefabricated column-prefabricated beam connection structure based on the phosphorus-magnesium material is composed of embedded C-type steel clamping slots, connection reinforcing steel bars with anchor heads, a later-grouted phosphorus-magnesium grouting material and later-poured joint phosphorus-magnesium fine aggregate concrete, wherein the embedded C-type steel clamping slots are embedded into the prefabricated column component and the prefabricated beam component. The prefabricated column-prefabricated beam connection structure based on the phosphorus-magnesium material solves the problems that in the prior art, reinforcing steel bar collision at the connection joint is severe, the connection structure is complicated, the construction precision requirement is high, detection is difficult by the adoption of a reinforcing steel bar sleeve grouting technology, and the curing time of joint later-poured concrete is long; and the prefabricated column-prefabricated beam connection structure based on the phosphorus-magnesium material effectively avoids that the steel bars at the core area of the connection joint are dense, the connection portion has large installation tolerance, reliability is high, construction operation iseasy and convenient, and detection is convenient.

Description

technical field [0001] The invention relates to the field of building structures, in particular to a connection structure and construction method of prefabricated columns and beams based on phosphorus and magnesium materials. Background technique [0002] The connection structure of prefabricated columns and beams is one of the important structural forms to realize the development mode of building industrialization. Its advantages of economy, convenience and environmental protection have attracted the attention of professionals at home and abroad. The node connection mode is the key issue in the design and construction of the connection structure of prefabricated columns and beams. In the current actual prefabricated concrete engineering, the prefabricated column-beam nodes and primary and secondary beam nodes of the frame structure use prefabricated components to protrude steel bars in the post-casting area. (The core area of ​​the beam-column joint) is anchored and connect...

Claims

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Application Information

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IPC IPC(8): E04B1/21C04B28/34
CPCC04B28/344C04B2201/50E04B1/21C04B2103/0068C04B18/12C04B14/00
Inventor 刘荣安光文尤超陈庆谭万燕吴茂田
Owner GUIZHOU PHOSPHORUS MAGNESIUM MATERIAL CO LTD
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