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Uplift pile mixed connection structure

A hybrid connection and uplift pile technology, which is applied in infrastructure engineering, sheet pile walls, buildings, etc., can solve problems such as the inability to effectively solve the problems of pile head sealing and anti-corrosion, extremely high strength and thickness requirements, and large residual deformation. , to reduce the thickness of the pile head steel plate, increase the contact area and stability, and improve the pull-out performance.

Active Publication Date: 2016-07-13
天海钢棒(张家港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In building construction, the butt joint of concrete piles is an indispensable process. The traditional way of butt joint of concrete piles is the welding of steel plates, and an engaging connector is added between the main reinforcement of the end plate and the main reinforcement to enhance the pull-out performance. When the structure is under tension, the end plate bears most of the load and the strength and thickness of the plate are extremely high, resulting in a lot of waste of materials, and this kind of connector is a meshing connector. There are gaps, and the residual deformation is large, which has an adverse effect on the crack width control of the concrete structure. In addition, the meshing connector and the main reinforcement exert force on the non-coaxial position of the end plate. When the tension is large, it is easy to cause the end plate deformation, so the overall pullout resistance is poor, and this connection method cannot effectively solve the problems of pile head sealing and anti-corrosion

Method used

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  • Uplift pile mixed connection structure
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  • Uplift pile mixed connection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as figure 1 and figure 2 As shown, a hybrid connection structure of uplift piles includes pile head protection sleeve I7, pile head protection sleeve II8 and plug joints. The plug joints include sleeve-shaped fixed positioning sleeves I1 and fixed positioning sleeves II2. The bottoms of the fixed positioning sleeve I1 and the fixed positioning sleeve II2 are provided with a limit end 11 that can limit the end of the main rib in it, and the fixed positioning sleeve I1 and the fixed positioning sleeve II2 are connected with the main rib. The pile head protection sleeve I7 is provided with a fixing hole I71, and the corresponding position of the pile head protection sleeve II8 is provided with a fixing hole II (unlabeled, the specific setting method is as the fixing hole I71), and the opening end of the fixed positioning sleeve I1 Fixed at the fixing hole I71, the opening end of the fixed positioning sleeve II2 is fixed at the fixing hole II, the fixed positionin...

Embodiment 2

[0054] Such as Figure 12 to Figure 14 As shown, the difference between this embodiment and Embodiment 1 is that the pile head protection sleeve I7 and the pile head protection sleeve II8 are fixed by full welding at the edges, no annular groove is provided on the end surface, and the edge of the end plate 72 is provided with Solder groove 74. Other structures of this embodiment are the same as those of Embodiment 1.

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Abstract

The invention discloses an uplift pile mixed connection structure which comprises a pile head protective sleeve I, a pile head protective sleeve II and a plug connector. The plug connector comprises a first sleeve-shaped fixed positioning sleeve and a second sleeve-shaped fixed positioning sleeve. A clamping piece is arranged in the first fixed positioning sleeve. A plug connection piece is arranged in the second fixed positioning sleeve. The plug connection piece can be inserted into the first fixed positioning sleeve and limited on the clamping piece, and therefore the first pile head protective sleeve and the second pile head protective sleeve can be fixedly connected in a butted mode. Both the first fixed positioning sleeve and the second fixed positioning sleeve are connected with main reinforcement bars and fixedly combined with the pile head protective sleeves through screws. When the uplift pile mixed connection structure is subjected to tensile force, the plug connector effectively connects the upper and lower main reinforcement bars, butt connection of the upper and lower main reinforcing bars on the same axis is achieved, inner stress is effectively transferred, meanwhile, the butted connection faces of the pile head protective sleeve I and the pile head protective sleeve II are in butted connection through a steel adhesive, the uplift resistance is further improved, and the purposes of impact resistance of a pile head end face and shear resistance and corrosion resistance of the connector are thoroughly achieved.

Description

technical field [0001] The invention relates to a concrete pile connection structure, in particular to a mixed connection structure of uplift piles. Background technique [0002] In building construction, the butt joint of concrete piles is an indispensable process. The traditional way of butt joint of concrete piles is the welding of steel plates, and an engaging connector is added between the main reinforcement of the end plate and the main reinforcement to enhance the pull-out performance. This connection When the structure is under tension, the end plate bears most of the load and the strength and thickness of the plate are extremely high, resulting in a lot of waste of materials, and this kind of connector is a meshing connector. There are gaps, and the residual deformation is large, which has an adverse effect on the crack width control of the concrete structure. In addition, the meshing connector and the main reinforcement exert force on the non-coaxial position of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D5/52
CPCE02D5/526
Inventor 袁江
Owner 天海钢棒(张家港)有限公司
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