Design method for grouting channel of prefabricated concrete vertical members

A technology of prefabricated concrete and vertical components, which is applied in the direction of building components, structural elements, building reinforcements, etc., can solve the problems of grouting materials not dense, not filling, leaking, etc., to meet quality requirements, construction operation is simple, ensure dense effect

Pending Publication Date: 2018-10-09
THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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Problems solved by technology

However, when this type of pressure grouting method seals the lower grouting opening, due to the influence of gravity, the unsolidified grouting material in the grouting sleeve will leak out, resulti

Method used

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  • Design method for grouting channel of prefabricated concrete vertical members

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Example Embodiment

[0021] Example 1: A method for designing a grouting channel for a precast concrete vertical member, the structure of the grouting channel is as figure 1 As shown, including the following steps:

[0022] (1) Precast the upper precast concrete vertical member 5 and the lower precast concrete vertical member 9. The upper precast concrete vertical member 5 and the lower precast concrete vertical member 9 are connected by the precast member vertical reinforcement 6, the precast member vertical reinforcement 6 Including upper section steel bars and lower section steel bars, the upper section steel bars are set around the upper section precast concrete vertical members 5, the lower section bars are set around the lower section precast concrete vertical members 9, the upper section precast concrete vertical members 5 and the lower section precast concrete vertical members The joint of 9 has horizontal seams 4 of upper and lower prefabricated members.

[0023] The first bottom keyway 1 and...

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Abstract

The invention discloses a design method for a grouting channel of prefabricated concrete vertical members. The design method comprises the following steps that the upper-section prefabricated concretevertical member and the lower-section prefabricated concrete vertical member are prefabricated; a first bottom key groove, a second bottom key groove, an L-shaped grouting pipeline and an L-shaped observation pipeline are prefabricated in the upper-section prefabricated concrete vertical member; the first bottom key groove is connected with the L-shaped grouting pipeline, and the second bottom key groove is connected with the L-shaped observation pipeline; steel bar grouting sleeves are arranged on the lower portion of the upper-section prefabricated concrete vertical member and communicate with a horizontal joint of the upper and lower prefabricated members; and a grouting material sequentially enters the second bottom key groove, the horizontal joint of the upper and lower prefabricatedmembers and the first bottom key groove from the L-shaped grouting pipeline, is discharged form slurry outlets of the steel bar grouting sleeves firstly to block the slurry outlets of the steel bar grouting sleeves, and then is discharged from the L-shaped observation pipeline to block the L-shaped observation pipeline and the L-shaped grouting pipeline.

Description

technical field [0001] The invention relates to a grouting technology used when vertical components of a prefabricated and assembled building are connected up and down, in particular to a method for designing a grouting channel of a prefabricated concrete vertical component, and belongs to the technical field of construction engineering. Background technique [0002] At present, precast concrete vertical components are widely used in various types of public and civil buildings, and precast concrete vertical components between different floors are mostly connected by steel sleeve grouting. The principle of steel grouting sleeve connection is mainly to fill the gap between the reserved steel bars of the lower prefabricated component and the reserved sleeve inner cavity of the upper prefabricated component with high-strength grouting material, so that the connection strength between the steel bar and the sleeve can meet the design requirements. . The density of the grouting ma...

Claims

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Application Information

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IPC IPC(8): E04C5/16
CPCE04C5/165
Inventor 滕晓军吴道宝全有维
Owner THE THIRD CONSTR OF CHINA CONSTR EIGHTH ENG BUREAU
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