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Connecting connector and connecting joint

A technology for connecting joints and connecting nodes, which is applied in the field of building structures, can solve problems such as weakened structural member sections, small overall rigidity, and large construction shares, and achieve the effects of less construction labor requirements, improved structural integrity, and stable maintenance conditions

Inactive Publication Date: 2020-12-15
GUANGZHOU METRO DESIGN & RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although its reliability is high, the assembly degree of cast-in-place connection nodes is low, which is a structural form between cast-in-place and fabricated
[0004] 2) It is difficult to control the construction quality of grouting sleeve joints and joints of grouting sleeves, and there is no perfect grouting detection technology at present
The hoisting and positioning accuracy requirements are too high, the current application range is small, and its development prospects are relatively limited
[0005] 3) Bolted joints, bolted joints have a simple structure and clear stress; however, the bolt holes weaken the section of the structural member and easily cause stress concentration
Bolt connection needs to be operated on site, the site construction share is relatively large, and the construction quality is difficult to control
[0006] 4) Welded structural joints of steel structures have complex processes and cumbersome welding work, and are mostly used in above-ground structures, and are difficult to popularize in underground structures
Although the tongue-and-groove joint is convenient to connect, the reliability of the joint is low, the overall stiffness is small, and the joint rotation and misalignment are prone to occur under complex stress conditions

Method used

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  • Connecting connector and connecting joint
  • Connecting connector and connecting joint
  • Connecting connector and connecting joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] refer to figure 1 and figure 2 , a connecting joint 100 comprising a first slot 111 110 , a second slot 121 120 and a plugging connector 130 .

[0044] Wherein, the side wall of the first groove 111 piece 110 is provided with a first groove 111 that runs through transversely, the width of the opening of the first groove 111 is smaller than the width inside the first groove 111, and the first groove The opening of 111 is provided with a first abutting plane 112 . The first groove 111 and the piece 110 are elongated, and the first groove 111 is provided through along its length direction, and a through hole is formed on its left and right end surfaces, and the shape of the hole is the cross-sectional shape of the first groove 111 . The opening of the first groove 111 is located at the lower end surface of the first groove 111 piece 110 , the opening is relatively small, and the plugging connector 130 cannot be disengaged from the opening after being inserted through th...

Embodiment 2

[0052] refer to Figure 1 to Figure 4 , a connection node 200, including a first prefabricated component 210, a second prefabricated component 220, and the connection joint 100 described in Embodiment 1.

[0053] Wherein, the first groove 111 and the piece 110 are pre-embedded and fixed at the lower end of the first prefabricated component 210 and the opening of the first groove 111 is set downwards, that is, the first groove 110 is placed in the first groove when the first prefabricated component 210 is prefabricated. 111 pieces 110 are fixed on the lower end of the prefabricated component in advance, and the first prefabricated component 210 is the upper component during implementation.

[0054] Similarly, the second slot 121 is pre-embedded and fixed on the upper end of the second prefabricated component 220, and the opening of the second slot 121 is set upward and corresponds to the position of the mouth of the first slot 111. That is to say, during the prefabrication of ...

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Abstract

The invention discloses a connecting connector and a connecting joint. The connecting connector comprises a first groove piece and a second groove piece, wherein a first groove is formed in the side wall of the first groove piece, and the width of an opening of the first groove is smaller than the width in the first groove; a transversely-through second groove is formed in the side wall of the second groove piece, the width of an opening of the second groove is smaller than the width in the second groove, and an inserting and fixing connecting piece comprises a first inserting and fixing part,a second inserting and fixing part and a connecting part; and after the first groove piece abuts against the second groove piece, the first inserting and fixing part and the second inserting and fixing part of the inserting and fixing connecting piece are correspondingly inserted into the first groove and the second groove. According to the connecting connector, the first groove piece and the second groove piece are connected and fixed through the inserting and fixing connecting piece, the structural integrity is good, firm connection is guaranteed, connection is carried out in the mode, theconnection is faster, and the construction period is shortened conveniently.

Description

technical field [0001] The invention belongs to the technical field of building structures, and in particular relates to a connection joint and a connection node. Background technique [0002] Prefabricated subway stations have become one of the important development directions of urban rail transit construction in my country due to their advantages such as short construction period, small labor demand, and low environmental pollution. The connection nodes of prefabricated components are the top priority in the research of prefabricated stations. The nodes must have clear force, reliable force transmission, convenient construction, and controllable quality. At the same time, they must meet the requirements of the subway station for component bearing capacity, durability, and ductility. . At present, there are mainly six types of prefabricated structural connection joints as follows: [0003] 1) For cast-in-place connection joints, the cast-in-place connection needs to rese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D29/16E02D29/045E02D31/02
CPCE02D29/045E02D29/16E02D31/02
Inventor 农兴中麦家儿卢晓智雷振宇何冠鸿郑凯晨李白宇
Owner GUANGZHOU METRO DESIGN & RES INST