Inclined pile connecting joint of assembly type wharf

Abstract

The utility model relates to the technical field of assembled wharfs, and discloses a batter pile connecting node of an assembled wharf, which comprises a prefabricated cross beam, a cross beam cavity is arranged at the lower end in the prefabricated cross beam, a horn-mouth-shaped corrugated steel pipe is arranged on the inner wall of the cross beam cavity, the corrugated steel pipe is anchored on the prefabricated cross beam through a steel bar, and a pile foundation is arranged at the lower end of the prefabricated cross beam. The pile foundation is a hollow circular pile, the hollow part of the pile foundation is provided with a channel steel framework, grouting materials are poured in the cross beam cavity, and the cross beam cavity is connected with the pile foundation through the channel steel framework and the grouting materials. According to the batter pile connecting joint of the assembly type wharf, a basic model for connecting the cross beam cavity and the pile foundation is connected through the channel steel framework and the grouting material, the channel steel framework is designed, batter piles can serve as supporting piles to support the prefabricated cross beam, construction steps are simplified, and time and labor are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of assembled docks, in particular to an inclined pile connection node of an assembled dock. Background Art

[0002] In recent years, wharf construction units have placed increasingly high demands on the construction period of the wharf. However, the cast-in-place work at the wharf construction site is greatly affected by wind, waves and water levels. The cast-in-place work of the wharf beams needs to be carried out during high tide, but the construction time is short, which restricts the construction period of the wharf.

[0003] In order to reasonably shorten the construction period, the design of prefabricated docks has emerged in the past two years. This has increased the assembly rate of the dock and prefabricated the lower beams that are more affected by natural conditions in a prefabrication plant and then transported them to the site for construction.

[0004] Since straight piles can be supported directly through the pile heads, the supporting piles of the wharf generally use straight piles as supporting piles. However, for structures with higher horizontal bearing capacity requirements, inclined piles are generally used for pile foundations. However, the inclined piles cannot support the prefabricated beams through the pile heads, resulting in cumbersome construction steps, time-consuming and labor-intensive, and increased labor intensity of the staff. Therefore, it is necessary to provide an inclined pile connection node for an assembled wharf to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an inclined pile connection node for a prefabricated wharf, which solves the problems mentioned in the above background.

[0006] The utility model provides the following technical solutions: an inclined pile connection node of an assembled wharf, comprising a prefabricated crossbeam, a crossbeam cavity is opened at the lower end of the interior of the prefabricated crossbeam, a trumpet-shaped corrugated steel pipe is arranged on the inner wall of the crossbeam cavity, the corrugated steel pipe is anchored on the prefabricated crossbeam through steel bars, a pile foundation is arranged at the lower end of the prefabricated crossbeam, the pile foundation is a hollow circular pile, a channel steel frame is arranged at the hollow part of the pile foundation, grouting material is poured inside the crossbeam cavity, the crossbeam cavity and the pile foundation are connected through the channel steel frame and the grouting material, a grouting hole connected to the interior of the crossbeam cavity is opened at the upper end of the prefabricated crossbeam, and a grouting hole is arranged on one side of the grouting hole.

[0007] Preferably, reinforcing steel bars are arranged around the channel steel frame, and the channel steel frame and the reinforcing steel bars are welded.

[0008] Preferably, a supporting channel steel is arranged on the outer side of the upper end of the channel steel frame, and the supporting channel steel is used to support the channel steel frame on the pile foundation.

[0009] Preferably, a steel pad is provided at the junction of the channel steel frame and the cross beam cavity.

[0010] Preferably, a bottom steel plate is provided inside the pile foundation and at the lower end of the channel steel frame.

[0011] Preferably, the bonding force between the grouting material and each connection interface is calculated as follows:

[0012] V ul =Aτ 0

[0013] Where: V ul -Interface adhesion;

[0014] A-contact area between interfaces;

[0015] τ 0 -Interface bond strength.

[0016] Preferably, the ultimate limit state structural design of the inclined pile connection node should meet the following requirements:

[0017] γ 0 S d ≤R d

[0018] Where: γ 0 - Importance factors for different structural safety levels;

[0019] S d - Design value of the effect of the action combination;

[0020] R d -resistance, take the interface adhesion.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] 1. The basic model of the inclined pile connection node of the prefabricated wharf, the connection between the beam cavity and the pile foundation is to use a channel steel frame and grouting material for connection. When installing the channel steel frame, the supporting channel steel can effectively support the channel steel frame. By designing the channel steel frame, the inclined piles can be used as supporting piles to support the prefabricated beams.

[0023] 2. The inclined pile connection nodes of the prefabricated wharf adopt a trumpet shape to form a structure similar to mortise and tenon joints, and resist part of the upward pull force through the material's own compressive and tensile resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The utility model is a schematic diagram of the inclined pile connection node structure of the assembled wharf.

[0025] In the figure: 1. Prefabricated beam; 2. Pile foundation; 3. Channel steel frame; 4. Bottom steel plate; 5. Reinforcement steel bar; 6. Grouting material; 7. Support channel steel; 8. Grouting hole; 9. Grouting hole. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 A slanted pile connection node of an assembled wharf comprises a prefabricated crossbeam 1, a crossbeam cavity is provided at the lower end of the interior of the prefabricated crossbeam 1, a trumpet-shaped corrugated steel pipe is provided on the inner wall of the crossbeam cavity, the corrugated steel pipe is anchored on the prefabricated crossbeam 1 through steel bars, a pile foundation 2 is provided at the lower end of the prefabricated crossbeam 1, the pile foundation 2 is a hollow circular pile, a channel steel frame 3 is provided in the hollow part of the pile foundation 2, a grouting material 6 is poured inside the crossbeam cavity, the crossbeam cavity is connected to the pile foundation 2 through the channel steel frame 3 and the grouting material 6, a grouting hole 8 communicating with the interior of the crossbeam cavity is provided at the upper end of the prefabricated crossbeam 1, and a grouting hole 9 is provided on one side of the grouting hole 8.

[0028] Among them, reinforcing steel bars 5 are arranged around the channel steel frame 3, and the channel steel frame 3 and the reinforcing steel bars 5 are welded. By arranging the reinforcing steel bars 5 and welding the reinforcing steel bars 5 around the channel steel frame 3, the stability of the channel steel frame 3 can be effectively further guaranteed.

[0029] Among them; a supporting channel steel 7 is arranged on the outer side of the upper end of the channel steel frame 3, and the supporting channel steel 7 is used to support the channel steel frame 3 on the pile foundation 2. By setting the supporting channel steel 7, it can be effectively connected to the channel steel frame 3. When the channel steel frame 3 is placed, the supporting channel steel 7 can effectively support the channel steel frame 3.

[0030] Among them, a steel pad is arranged at the junction of the channel steel frame 3 and the crossbeam cavity, and a bottom steel plate 4 is arranged inside the pile foundation 2 and at the lower end of the channel steel frame 3. By arranging the steel pad, it can be effectively ensured that the force on the channel steel frame 3 is uniform, and by arranging the bottom steel plate 4, it can be effectively used to receive the grouting material 6 to ensure that the grouting material 6 is in full contact with the channel steel frame 3.

[0031] Among them, the bonding force between the grouting material 6 and each connection interface is calculated as follows:

[0032] V ul =Aτ 0

[0033] Where: V ul -Interface adhesion;

[0034] A-contact area between interfaces;

[0035] τ0 -Interface bonding strength;

[0036] The ultimate limit state structural design of inclined pile connection nodes should meet the following requirements:

[0037] γ 0 S d ≤R d

[0038] Where: γ 0 - Importance factors for different structural safety levels;

[0039] S d - Design value of the effect of the action combination;

[0040] R d - Resistance, taking the interface adhesion;

[0041] Therefore, the safety of the inclined pile connection node of the prefabricated wharf during use can be effectively guaranteed.

[0042] Working principle: before installing the supporting channel steel 7, the pile head of the pile foundation 2 needs to be processed to make the interface of the pile head of the pile foundation 2 horizontal, so as to facilitate the placement of the channel steel frame 3. By providing the supporting channel steel 7, it can be effectively connected to the channel steel frame 3. When placing the channel steel frame 3, the supporting channel steel 7 can effectively support the channel steel frame 3. By providing the reinforcing steel bars 5 and welding the reinforcing steel bars 5 around the channel steel frame 3, the stability of the channel steel frame 3 can be effectively further guaranteed.

[0043] Furthermore, the basic model for connecting the beam cavity with the pile foundation 2 is to connect them by using a channel steel skeleton 3 and grouting material 6. The inner wall of the cavity is reinforced by a bell-shaped corrugated steel pipe, which is anchored on the prefabricated beam 1 by steel bars. By providing a steel pad, the force of the channel steel skeleton 3 can be effectively guaranteed to be uniform. By providing a bottom steel plate 4, the grouting material 6 can be effectively received to ensure full contact between the grouting material 6 and the channel steel skeleton 3. By designing the channel steel skeleton 3, the pile foundation 2 can be used as a supporting pile to support the prefabricated beam 1.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An inclined pile connection node of an assembled wharf, characterized in that: The invention comprises a prefabricated cross beam (1), wherein a cross beam cavity is provided at the lower end of the interior of the prefabricated cross beam (1), a bell-shaped corrugated steel pipe is provided on the inner wall of the cross beam cavity, and the corrugated steel pipe is anchored to the prefabricated cross beam (1) through steel bars, a pile foundation (2) is provided at the lower end of the prefabricated cross beam (1), the pile foundation (2) is a hollow round pile, a channel steel frame (3) is provided at the hollow part of the pile foundation (2), grouting material (6) is poured inside the cross beam cavity, the cross beam cavity is connected to the pile foundation (2) through the channel steel frame (3) and the grouting material (6), and a grouting hole (8) communicating with the interior of the cross beam cavity is provided at the upper end of the prefabricated cross beam (1), and a grouting hole (9) is provided on one side of the grouting hole (8).

2. The inclined pile connection node of the prefabricated wharf according to claim 1, characterized in that: Reinforcement steel bars (5) are arranged around the channel steel frame (3), and the channel steel frame (3) and the reinforcement steel bars (5) are welded.

3. The inclined pile connection node of the prefabricated wharf according to claim 1, characterized in that: A supporting channel steel (7) is arranged on the outer side of the upper end of the channel steel frame (3), and the supporting channel steel (7) is used to support the channel steel frame (3) on the pile foundation (2).

4. The inclined pile connection node of the prefabricated wharf according to claim 1, characterized in that: A steel pad is provided at the junction of the channel steel frame (3) and the crossbeam cavity.

5. The inclined pile connection node of the prefabricated wharf according to claim 1, characterized in that: A bottom supporting steel plate (4) is arranged inside the pile foundation (2) and at the lower end of the channel steel frame (3).

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