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Prefabricated concrete beam column connecting joint and connecting method

A prefabricated concrete, beam-column connection technology, applied in the direction of building components, earthquake resistance, building types, etc., can solve problems such as crowded steel bars, inconvenient construction, complex construction technology, etc., to improve ductility and energy consumption capacity, convenient quality inspection, and solve The effect of rebar crowding

Active Publication Date: 2022-02-01
NORTHEAST DIANLI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The connection and positioning of vertical components is highly demanding, and more temporary supports need to be set up after the connection, and the construction efficiency is not high; the longitudinal reinforcement of the column is connected by grouting sleeve, and the construction process is complicated Construction quality inspection is inconvenient, there are many steel bars in the core area of ​​the joint, the construction is inconvenient, the construction quality is not suitable for guarantee, the quality inspection of the sleeve connection is inconvenient, the steel bars in the core area of ​​the joint are crowded, and the construction is difficult

Method used

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  • Prefabricated concrete beam column connecting joint and connecting method
  • Prefabricated concrete beam column connecting joint and connecting method
  • Prefabricated concrete beam column connecting joint and connecting method

Examples

Experimental program
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Effect test

Embodiment 1

[0036] refer to Figure 1-5 As shown, a precast concrete beam-column connection node includes two precast concrete columns 1, two precast concrete beams 2, several steel bar extrusion sleeves 3, a central fixture and two auxiliary fixtures;

[0037] The central fixture includes a cross tube and a cross plate; both ends of the cross tube are fixedly connected to one end of two prefabricated concrete columns 1 respectively; the cross plate is inserted in the cross tube;

[0038] Auxiliary fixtures include I-beam 8 and two connecting cover plates 5; the sides of I-beam 8 are fixed with reinforcement frames, which are integrally formed with precast concrete beam 2, and the two ends of I-beam 8 protrude from precast concrete beam 2 respectively. Both ends form a fixed end; one end of the I-beam 8 is fixedly connected to the cross plate through two connecting cover plates 5 with screws;

[0039] Further, the steel bar frame is a cage-shaped structural member fixedly connected by a ...

Embodiment 2

[0059] Such as Figure 8-9 As shown, the difference between the fixed piece 10 and the cross plate of this embodiment and the first embodiment is that not only the two fixed pieces 10 that fit together are screwed together, but also the four fixed pieces fixed at intervals on the steel pipe 9 The sheets 10 are fastened together by a long bolt 19 . The long bolts 19 pass through the two gusset plates 6 and are fixedly connected with the two gusset plates 6 , preferably by welding, which can improve the overall strength.

[0060] The two gusset plates 6 are inserted into each other through the slots 13. After being plugged in place, the two gusset plates 6 are also welded along the slots 13, so that the two gusset plates 6 become a whole, and the resistance of the two gusset plates 6 is improved. tensile strength.

Embodiment 3

[0062] A connection method of a prefabricated concrete beam-column connection node in this embodiment also includes the following steps:

[0063] Grouting: After all the structures in Embodiment 1 are connected, concrete is poured on the part between the opposite sides of the two prefabricated concrete columns 1, the cross cylinder and the cross plate, and at the same time the two gusset plates 6 and the I-beam 8 The fixed ends protrude from the cast concrete block. By casting concrete, the two prefabricated concrete columns 1, the cross tube and the cross plate are connected into a whole, and the cross tube and the cross plate are used as the skeleton, and the concrete is used as the frame. Filling improves the connection strength and tensile strength of the connection points of concrete beams and columns.

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Abstract

The invention discloses a prefabricated concrete beam column connecting joint and a connecting method. The prefabricated concrete beam column connecting joint comprises two prefabricated concrete columns, two prefabricated concrete beams, a plurality of steel bar extrusion sleeves, a central firmware and two auxiliary fixing pieces. the central firmware comprises a cross cylinder and a cross plate; the two ends of the cross cylinder are fixedly connected with one ends of the two prefabricated concrete columns correspondingly; the cross plate is inserted into the cross cylinder; the auxiliary firmware comprises I-shaped steel and two connecting cover plates; the I-shaped steel and the precast concrete beam are integrally formed, and two ends of the I-shaped steel respectively extend out of two end surfaces of the precast concrete beam; one end of the I-shaped steel is fixedly connected with the cross plate through the two connecting cover plates; and the two prefabricated concrete columns are fixedly connected through the cross cylinder and the plurality of steel bar extrusion sleeves. The tensile strength of the prefabricated concrete beam-column connecting joint can be improved, and the shock resistance of a building applying the prefabricated concrete beam-column connecting joint is enhanced.

Description

technical field [0001] The invention relates to the field of concrete installation, in particular to a prefabricated concrete beam-column connection node and a connection method. Background technique [0002] The connection joints of prefabricated structures that have been studied can be roughly divided into prestressed splicing joints, post-cast integral joints, bolted joints and welded joints. The prestressed splicing joint is to pass the prestressed tendons through the reserved holes of the concrete beams and columns, then stretch the prestressed tendons and anchor them on the sides of the prefabricated beams and columns, and finally pour mortar into the reserved holes The way precast beams and columns are joined together. The post-cast integral connection is a connection method in which the steel bars in the prefabricated beam-column are connected after the beam-column is installed in place, and then a concrete strip is poured with concrete at the beam-column joint. We...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/21E04B1/20E04B1/98E04H9/02
CPCE04B1/21E04B1/20E04B1/98E04H9/021E04B1/215E04H9/025
Inventor 王德弘韩雷鞠彦忠
Owner NORTHEAST DIANLI UNIVERSITY
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