Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method

A technology for steel sleeves and connecting structures, which is applied to structural elements, building components, building structures, etc., can solve the problems of low processing efficiency and complex process of grouting sleeves, and achieves guaranteeing construction efficiency and construction quality. Reliable effect

Inactive Publication Date: 2015-04-29
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Abstract
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  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to provide a pier head extruded semi-grouting steel bar sleeve, connection structure and construction method thereof, to solve the technical

Method used

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  • Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method
  • Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method
  • Pier-extruded and half-grouted steel bar sleeve, connecting structure and construction method

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Embodiment Construction

[0042] Examples see image 3 As shown, the pier head extrudes the semi-grouting reinforcement sleeve, the sleeve 1 is processed by hot-rolled seamless steel pipe, and the wall of the sleeve is provided with a grouting hole 3 and a grouting hole 4, and Annular inner protrusions 2 are distributed between the grouting hole 3 and the grouting hole 4. The annular inner protrusions 2 are single rings evenly spaced and can be processed by three-axis rolling, rolling or other cold and hot processing techniques. , one end of the sleeve 1 is the extruded end 6, and the rest is the slurry anchor end 9, the inner diameter of the extruded end 6 is equal to the outer diameter of the connected steel bar and smaller than the inner diameter of the slurry anchor end 9, the extruded end 6 The length of the pressure end 6 meets the requirements of the strength of the extrusion joint, and the length of the grout anchor end 9 meets the requirements of the strength of the steel grouting sleeve conne...

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PUM

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Abstract

The invention provides a pier-extruded and half-grouted steel bar sleeve, a connecting structure and a construction method thereof. The sleeve is a hot-rolling seamless steel pipe, a grouting hole and a slurry discharging hole are formed in the sleeve wall of the sleeve, an annular inner projection is distributed between the grouting hole and the slurry discharging hole, one end of the sleeve is an extrusion end, the rest part is a grouting-anchoring end, the inner diameter of the extrusion end is equal to the outer diameter of connected steel bars and smaller than the inner diameter of the grouting-anchoring end, and the grouting hole, the slurry discharging hole and the annular inner projection are positioned at the grouting-anchoring end. The steel bars are connected through the half-grouted steel bar sleeve, part of one end of the sleeve is connected with the steel bar by an extrusion connection technology, and the other part of the sleeve is still connected with the steel bar in a grouting mode. The connecting structure can be widely applied to the steel bar connection of prefabricated concrete columns in a multi-high-layer prefabricated assembly type concrete framework structure, a shear wall structure or a framework shear wall structure as well as the horizontal steel bar connection of prefabricated concrete beams, the steel bar connection of prefabricated concrete shear walls and steel bar connection in the conventional reinforcing engineering.

Description

technical field [0001] The invention relates to a grouting sleeve and a construction method thereof. Background technique [0002] At present, in the prefabricated and assembled reinforced concrete structure system, the design method equivalent to cast-in-place is mostly used, which puts forward high requirements on the reliability of the reinforcement connection between prefabricated components. At the same time, the following problems still exist in this system: [0003] 1. The overlapping and welding connection methods of steel bars used in traditional cast-in-place structures are not suitable for the process requirements of prefabricated component assembly; [0004] 2. The existing cast steel grouting sleeve adopts precision casting process, which is prone to casting defects, difficult to guarantee quality and high cost; [0005] 3. The existing grouting sleeve processed by mechanical cutting of steel rods has a large cutting workload and high cost; [0006] 4. The ex...

Claims

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Application Information

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IPC IPC(8): E04C5/18
Inventor 郭海山蒋立红刘康耿娇李明王冬艳齐虎范昕张翠强杨晓杰
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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