Insertion prepared hole venting reinforcing steel bar lap joint structure fabricated construction method

A construction method and technology of reserved holes, applied in structural elements, building components, building structures, etc., can solve the problems of complex construction and inapplicability of prefabricated concrete structures, and achieve saving of construction funds, easy construction quality assurance, and reliable performance Effect

Inactive Publication Date: 2011-05-25
HEILONGJIANG YUHUI NEW BUILDING MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In cast-in-place concrete structures, mechanical connection methods such as lap joints, welded connections, or extruded sleeves are often used for the connection of steel bars. Among them, the lap joint connection of steel bars is the simplest, and the construction of mechanical connections such as welded connections or extruded sleeves is relatively difficult. Complicated, but these traditional construction methods must complete the connection of steel bars before pouring concrete, which is not suitable for prefabricated concrete structure prefabricated construction methods

Method used

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  • Insertion prepared hole venting reinforcing steel bar lap joint structure fabricated construction method
  • Insertion prepared hole venting reinforcing steel bar lap joint structure fabricated construction method
  • Insertion prepared hole venting reinforcing steel bar lap joint structure fabricated construction method

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Effect test

Embodiment 1

[0017] The plug-in prefabricated hole exhaust steel bar lap joint structure assembly method comprises: a prefabricated concrete component 1, the prefabricated concrete component 1 has a pre-embedded steel bar 2, and the pre-embedded steel bar 2 has a connecting steel bar next to it 3. There are holes reserved beside the pre-embedded steel bars, reinforcing ribs 4 are arranged along the length direction around the pre-embedded steel bars and holes, and the grouting holes 5 and vent holes 6 are connected inside the holes.

[0018] In the assembly construction method of the plug-in reserved hole venting steel bar lap structure, the grouting hole is connected to the lower part of the hole, and the vent hole is connected to the top of the hole.

Embodiment 2

[0020] In the plug-in reserved hole venting steel bar lap joint structure assembly method described in Example 1, the shape of the inner wall of the hole along the length direction is a non-smooth shape, which can be corrugated 7, threaded, grooved, point shape.

Embodiment 3

[0022] The plug-in reserved hole venting steel bar lap joint structure assembly method described in Example 1, the reinforcing rib is in the shape of a spiral or a closed ring, and the outer diameter of the reinforcing rib is larger than the total diameter of the hole and the pre-embedded reinforcing bar. outside diameter.

[0023] working principle:

[0024] The corrugated hole 8 of the plug-in reserved hole venting steel bar lap structure assembly method is reserved next to the lower end of the pre-embedded steel bar 2 of the precast concrete member, and the corrugated hole 8 is designed with a grouting hole 5 connected to it. The air vent 6 is pre-embedded around the corrugated hole 8 and the pre-embedded steel bar 2 at the same time, with reinforcing ribs 4 arranged along the length direction of the hole. When the prefabricated concrete member is hoisted and installed, the connected steel bar 3 is inserted into the corrugated hole 8 to the design overlap length, and the ...

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Abstract

The invention discloses an insertion prepared hole venting reinforcing steel bar lap joint structure fabricated construction method. In the conventional cast-in-place concrete structure, the connection of reinforcing steel bars is finished before concrete is deposited, so the conventional cast-in-place concrete structure is not suitable for a fabricated construction method of a precast concrete structure. In the method, a precast concrete unit (1) is used; embedded bars (2) are arranged in the precast concrete unit (1); connection reinforcing steel bars (3) are connected beside the embedded bars (2); a hole is reserved beside the embedded bars; reinforcing ribs (4) are distributed on the peripheries of the embedded bars and the hole along the direction of length; and a grouting hole (5) and a venting hole (6) are connected with the interior of the hole. The method is used for the lap joint connection construction of the reinforcing steel bars between precast concrete structures.

Description

Technical field: [0001] The invention relates to a prefabricated connecting member adopting a steel bar plug-in lap joint connection, in particular to a prefabricated plug-in pre-hole grouting pre-reserved hole venting steel bar lap connection method suitable for housing industrialization. Background technique: [0002] In cast-in-place concrete structures, mechanical connection methods such as lap joints, welded connections, or extruded sleeves are often used for the connection of steel bars. Among them, the lap joint connection of steel bars is the simplest, and the construction of mechanical connections such as welded connections or extruded sleeves is relatively difficult. Complex, but these traditional construction methods must complete the connection of steel bars before pouring concrete, which is not suitable for prefabricated concrete structure assembly construction methods. Invention content: [0003] The purpose of the present invention is to provide a constructi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04C5/16E04C5/02
Inventor 刘文清闫红缨姜洪斌
Owner HEILONGJIANG YUHUI NEW BUILDING MATERIAL
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