Steel pipe pile pier beam consolidation structure

Abstract

The utility model belongs to the technical field of bridge construction, and particularly discloses a steel pipe pile pier beam consolidation structure which comprises a pier top disc and a cross-shaped rib plate, the cross-shaped rib plate is fixed at the bottom end of the pier top disc and inserted into a steel pipe column, and an upper structure of a trestle is installed at the top end of the pier top disc. The construction difficulty can be reduced, and the construction period can be shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel pipe pile pier beam consolidation structure. Background Art

[0002] Usually, the pier is composed of pile foundation and superstructure, and the superstructure and the steel pipe piles of the pile foundation are connected by pier-beam consolidation. The pier-beam consolidation is the connection between the steel pipe piles and the upper platform. The installation accuracy of this part directly affects the quality of the project, and the installation speed has a decisive influence on the progress of the whole project. In addition, the whole process is constructed at sea, which has a high safety risk.

[0003] In the original design, Figure 4 As shown in the figure, the pier-beam consolidation is composed of a pier top disc and a section of steel pipe, on which a cross stiffener is welded. A small steel pipe is embedded in the lower side of the steel pipe as a liner, and the outer wall of the steel pipe is welded between the pier caps for stiffening; during installation, the embedded small steel pipe is inserted into the steel pipe pile foundation with the pile head cut, and the pier-beam consolidation steel pipe is butt-welded to the pile foundation. The feasibility of this design is poor, mainly for the following reasons:

[0004] ①. Long construction period, great construction difficulty and high construction cost:

[0005] In order to resist tidal forces, most of the steel pipe pile foundations in this project are designed with an inclination angle, which makes positioning extremely difficult. In addition, the pile driving process is affected by factors such as tides, wind and waves, and geological conditions, making it extremely difficult to ensure accuracy. If the construction is carried out according to this plan, the specific rod size of almost every pier and beam consolidation plant needs to be determined based on the actual slope of the pile foundation, which greatly increases the construction difficulty and construction period.

[0006] ②. Difficulty in installation:

[0007] After the steel pipe pile is driven, it needs to be flame cut to remove the pile head to reach the designed elevation. The flame cutting process will inevitably cause deformation of the steel pipe pile foundation. The embedded small steel pipe and the pile foundation steel pipe are nested structures, and there is no size design margin, which will make on-site installation extremely difficult to complete. And due to factors such as wind and wave accuracy, it is difficult for the pier beam consolidation small steel pipe to be in line with the steel pipe pile foundation, resulting in eccentric compression, which directly affects the structural stress.

[0008] ③. High safety risk factor:

[0009] The pile foundation is located in the sea and is subject to wave forces at any time. The original design of pier and beam consolidation has a high center of gravity due to the presence of a small section of steel pipe, and the stability after installation is poor. The upper structure can only be installed after welding is completed, otherwise there is a risk of capsizing. Utility Model Content

[0010] The utility model provides a steel pipe pile pier beam consolidation structure, aiming to reduce the construction difficulty and construction period.

[0011] The utility model is realized through the following technical scheme: a steel pipe pile pier beam consolidation structure, comprising a pier top disc and a cross rib plate, wherein the cross rib plate is fixed at the bottom end of the pier top disc, the cross rib plate is inserted into the steel pipe column, and the upper structure of the trestle is installed on the top end of the pier top disc.

[0012] In this solution, it is only necessary to insert the cross rib plate into the steel pipe column, without the need to embed small steel pipes as in the prior art, and the steps of welding the small steel pipes for consolidating piers and beams with the steel pipe pile foundations in the prior art are reduced. The structure in this solution effectively reduces the construction difficulty and construction period.

[0013] Furthermore, a plurality of stiffening plates are connected to the bottom end of the pier top disc, and the plurality of stiffening plates are evenly distributed along the circumference of the pier top disc.

[0014] Beneficial effect: The provision of the reinforced plate can improve the stability and strength of the entire pier-beam consolidation structure.

[0015] Furthermore, the stiffening plate is located outside the cross-rib plate.

[0016] Beneficial effect: This solution can avoid the reinforcement plate from hindering the cross rib plate from being inserted into the steel pipe pile.

[0017] Furthermore, the height of the cross rib plate is greater than the height of the stiffened plate.

[0018] Beneficial effect: The end of the cross rib plate is arranged in this way to extend out of the bottom of the reinforced plate, so that the reinforced plate can be smoothly and quickly inserted into the steel pipe pile, avoiding the reinforced plate from hindering the insertion of the cross rib plate into the steel pipe pile.

[0019] Furthermore, movable plates are provided at the four ends of the cross rib plate, the movable plates are radially slidably matched with the pier top circular disc, and a reset piece is connected between the movable plates and the cross rib plate.

[0020] Beneficial effect: The provision of the movable plate in this solution enables the length of the cross rib plate to be adjustable, thereby being able to adapt to steel pipe pile diameters of different sizes, and the difficulty of installation is effectively reduced.

[0021] Furthermore, a slide groove is provided on the pier top circular disc, and one end of the movable plate is located in the slide groove and slidably cooperates with the slide groove.

[0022] Beneficial effect: In this solution, the movable plate slides in the slide groove, which can limit the movable plate and make the sliding adjustment of the movable plate smoother.

[0023] Furthermore, a guide groove is provided on the pier top disc, the guide groove is communicated with the slide groove, a slide plate is connected to the movable plate, the slide plate is located in the guide groove and slidably cooperates with the guide groove.

[0024] Beneficial effect: The arrangement of the guide groove and the slide plate in the present solution enables the slide plate to be fixed to the guide groove by fasteners after the position of the movable plate is adjusted, thereby enhancing the reliability of the movable plate.

[0025] Furthermore, a screw hole is provided on the slide plate, and the slide plate is connected and fixed to the bottom of the guide groove by screws.

[0026] Beneficial effect: The setting of the screw holes in this solution makes it easy to drive in the screws to fix the slide plate at the bottom of the guide groove, so that the movable plate and the pier top disc can be fixed and limited after adjustment.

[0027] Furthermore, the reset element is a spring.

[0028] Beneficial effects: In this solution, the reset member is a spring, which has good elastic deformation, is easy to adjust according to the actual size of the steel pipe column, and is easy to operate.

[0029] Furthermore, the stiffened plate and the cross rib plate are both welded and fixed to the pier top disc.

[0030] Beneficial effects: This solution can ensure that the reinforced plate and the cross-rib plate are fixed firmly and firmly to the pier top disc.

[0031] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0032] 1. When the steel pipe pile pier-beam consolidation structure in this application is manufactured in the factory, it is not necessary to customize it according to the actual slope of the pile foundation, and only a small amount of secondary cutting is required for the cross reinforcement. This greatly reduces the construction difficulty, construction period and construction cost.

[0033] 2. The improved pier-beam consolidation uses cross-reinforcement inserted into the pile foundation, which has a smaller contact surface and is more flexible. The size of the cross-reinforcement can be adjusted very conveniently and quickly. It can be accurately installed by making appropriate adjustments based on the site conditions, making construction easier and safer.

[0034] 3. The improved pier-beam consolidation is flatter and has excellent stability. After installation, the center of gravity is close to the steel pipe pile foundation. The superstructure can be installed without welding to the steel pipe piles. There is no danger of overturning. After welding, there is no need to consider the eccentric compression of the pier beam and pile foundation, and the structure has better stress resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0036] Figure 1 This is a front view of a steel pipe pile pier beam consolidation structure embodiment 1 of the utility model;

[0037] Figure 2 It is a bottom view of Embodiment 1 of a steel pipe pile pier beam consolidation structure of the utility model;

[0038] Figure 3 It is a longitudinal cross-sectional view of Embodiment 2 of a steel pipe pile pier beam consolidation structure of the utility model;

[0039] Figure 4 It is a cross-sectional view of the cooperation between the pier-beam consolidation structure and the steel pipe piles in the prior art.

[0040] Marks and corresponding parts names in the attached drawings:

[0041] Pier top disc 1, cross rib plate 2, stiffened plate 3, movable plate 4, spring 5, slide groove 6, slide plate 7, guide groove 8, screw hole 9. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0043] like Figure 1-Figure 2 As shown, this embodiment 1 provides a steel pipe pile pier beam consolidation structure, including a pier top disc 1 and a cross rib plate 2, the cross rib plate 2 is fixed to the bottom end of the pier top disc 1, the cross rib plate 2 is inserted into the steel pipe column, and the upper structure of the pier is installed on the top of the pier top disc 1.

[0044] In this embodiment, a plurality of stiffening plates 3 are connected to the bottom end of the pier top disc 1, and the plurality of stiffening plates 3 are evenly distributed along the circumference of the pier top disc 1. In this embodiment, the stiffening plates 3 are located on the outside of the cross stiffening plates 2, and the height of the cross stiffening plates 2 is greater than the height of the stiffening plates 3, so that the bottom end of the cross stiffening plates 2 extends out of the bottom of the stiffening plates 3, which facilitates the rapid insertion of the cross stiffening plates 2 into the steel pipe column.

[0045] In this solution, the stiffened plate 3 and the cross-rib plate 2 are both welded and fixed to the pier top disc 1 .

[0046] The specific implementation process is as follows: the improved pier-beam consolidation is changed to cross reinforcement inserted into the pile foundation, so that the contact surface between the cross reinforcement and the steel pipe pile foundation is smaller and more flexible, and the size of the cross reinforcement is extremely convenient and quick to adjust. It can be accurately installed by appropriate adjustment according to the on-site conditions, making the construction easier and safer. In this solution, when the pier-beam consolidation is made in the factory, it is not necessary to customize it according to the actual slope of the pile foundation, and only a small amount of secondary cutting is required for the cross reinforcement. This can greatly reduce the construction difficulty, construction period and construction cost.

[0047] The improved pier-beam consolidation is flatter and has excellent stability. After installation, the center of gravity is close to the steel pipe pile foundation. The superstructure can be installed without welding to the steel pipe piles. There is no danger of overturning. After welding is completed, there is no need to consider the eccentric compression of the pier beam and pile foundation, and the structure can withstand better stress.

[0048] The welds between the pier beam consolidation and the pile foundation can be welded after the superstructure is installed. The construction is safe, reliable, fast and the cost is extremely low. At the same time, the installation period of the superstructure is saved.

[0049] Embodiment 2, as Figure 3 As shown, the difference between this embodiment and embodiment 1 is that: in this embodiment, the four ends of the cross rib plate 2 are provided with movable plates 4, the movable plates 4 are radially slidably matched with the pier top disc 1, and the movable plates 4 are flush with the corresponding cross rib plates 2, and a reset member is connected between the movable plates 4 and the corresponding cross rib plates 2, and the reset member in this embodiment is a spring 5.

[0050] In this embodiment, four slide grooves 6 are provided on the pier top disc 1, and the four slide grooves 6 correspond to the four ends of the cross rib plate 2 in sequence. One end of the movable plate 4 is located in the slide groove 6 and slides with the slide groove 6. Four guide grooves 8 are also provided on the pier top disc 1. The four guide grooves 8 are communicated with the slide groove 6. The guide grooves 8 are all located at the upper part of the slide groove 6. A slide plate 7 is connected to the movable plate 4. The slide plate 7 is located in the guide groove 8 and slides with the guide groove 8. In this embodiment, screw holes 9 are provided on the slide plate 7, and the slide plate 7 is fixed to the bottom of the guide groove 8 by screws.

[0051] The specific implementation process is as follows: the spring 5 is in the initial state, and the movable plate 4 is in an expanded state. At this time, the size formed between the movable plates 4 is the largest, usually larger than the steel pipe pile. This allows the movable plate 4 to have a margin and can be adjusted on site according to the actual size of the steel pipe pile. The movable plate 4 can be smoothly inserted into the steel pipe pile by sliding. When the movable plate 4 and the cross rib plate 2 are successfully inserted into the steel pipe column, the external force is removed, and the movable plate 4 can automatically reset under the action of the spring 5 and fit closely to the inner side of the steel pipe column to achieve precise installation. In this way, there is no need to customize it according to the actual slope of the pile foundation. It is more adaptable, more flexible, and quicker and more convenient to install.

[0052] After the movable plate 4 is inserted into the steel pipe pile, the slide plate 7 is fixed in the guide groove 8 by inserting screws into the screw holes 9, thereby fixing the movable plate 4, improving the stability of the movable plate 4, and further improving the connection stability and strength of the entire device and the steel pipe column.

[0053] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A steel pipe pile pier beam consolidation structure, characterized in that: It comprises a pier top disc and a cross rib plate, wherein the cross rib plate is fixed at the bottom end of the pier top disc, the cross rib plate is inserted into a steel pipe column, and the upper structure of the trestle is installed on the top end of the pier top disc.

2. A steel pipe pile pier beam consolidation structure according to claim 1, characterized in that: A plurality of stiffening plates are connected to the bottom end of the pier top disc, and the plurality of stiffening plates are evenly distributed along the circumference of the pier top disc.

3. The steel pipe pile pier beam consolidation structure according to claim 2, characterized in that: The reinforcing plate is located on the outer side of the cross rib plate.

4. A steel pipe pile pier beam consolidation structure according to claim 2 or 3, characterized in that: The height of the cross rib plate is greater than the height of the stiffened plate.

5. The steel pipe pile pier beam consolidation structure according to claim 1, characterized in that: The four ends of the cross rib plate are all provided with movable plates, the movable plates are radially slidably matched with the pier top circular disc, and a reset piece is connected between the movable plates and the cross rib plate.

6. The steel pipe pile pier beam consolidation structure according to claim 5, characterized in that: A slide groove is provided on the pier top circular disc, and one end of the movable plate is located in the slide groove and slidably cooperates with the slide groove.

7. The steel pipe pile-pier-beam consolidation structure according to claim 6, characterized in that: The pier top disc is also provided with a guide groove, which is communicated with the slide groove. The movable plate is connected with a slide plate, which is located in the guide groove and slidably cooperates with the guide groove.

8. The steel pipe pile pier beam consolidation structure according to claim 7, characterized in that: The slide plate is provided with screw holes, and the slide plate is connected and fixed to the bottom of the guide groove by screws.

9. The steel pipe pile pier beam consolidation structure according to claim 5, characterized in that: The reset element is a spring.

10. The steel pipe pile pier beam consolidation structure according to claim 2, characterized in that: The stiffened plate and the cross rib plate are both welded and fixed to the pier top disc.

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