Steel pipe pile steel cage binding method

Abstract

The invention belongs to the technical field of foundation steel piles of offshore drilling platforms and offshore power generation steel structures, and particularly relates to a steel pipe pile steel cage binding method which comprises the following steps that two bottom cross beams and a plurality of first stand columns are provided, the bottom cross beams are horizontally placed on the ground, and the two bottom cross beams are arranged in parallel; the first stand columns are perpendicularly fixed to the two bottom cross beams at equal intervals respectively to form a plurality of first grooves with the upper ends open, and the first grooves formed in the two bottom cross beams are located in the same straight line. Hoisting the whole steel pipe pile, and loading the steel pipe pile into the two first grooves together until cage entering is finished; and two top cross beams are provided and connected with the top sides of the first stand columns fixed to the two bottom cross beams correspondingly, and two parallel closed steel cages are formed. The time for adjusting the straightness of the steel pipe pile in the cage entering process of the steel pipe pile is saved, the later steel cage alignment and welding deformation is small, the binding quality and efficiency are improved, the manual adjustment cost is reduced, and the safety accidents of high falling and collapse of the steel pipe pile are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of foundation steel piles for offshore drilling platforms and offshore power generation steel structures, and in particular relates to a steel pipe pile steel cage binding method. Background Art

[0002] The foundation steel piles of offshore drilling platforms or power generation conductor frames are large steel pipe structures, also known as steel pipe piles (such as Figure 1 As shown in the figure, each steel pipe pile is long and heavy. A batch of steel pipe piles is about 6 to 8. After a batch of steel pipe piles is completed, they will be tied together with I-beams to form a whole, and then shipped as a whole. This I-beam used for tying plays a role in fastening and supporting the steel pipe piles, which is called a "steel cage" (such as Figure 2 A batch of steel pipe columns requires about 10 sets of steel cages for tying (as shown in Figure 3 The whole steel pipe pile binding process is called "entering the cage"

[0003] The commonly used method of tying steel pipe piles is bulk method (such as Figure 4 As shown in the figure, first, put the I-beam on the bottom and fix it on the supporting pier, and then put the prepared steel pipe pile on the I-beam on the bottom. Secondly, install side columns on both sides of the steel pipe pile to block the steel pipe pile, and then place the steel pipe pile and columns in sequence until all the steel pipe piles are installed. Finally, install the I-beam on the top, and after all the steel pipe piles and I-beams are installed and welded, a frame that ties all the steel pipe piles together is formed, and the binding is completed.

[0004] However, in the actual implementation process of steel pipe piles, there will be an extra adjustment step. Although the steel plate of the steel pipe pile is relatively thick, the straightness of the steel pipe pile will change due to the long length of the entire steel pipe pile. When the prepared steel pipe pile is lifted and placed on the I-beam at the bottom, the steel pipe pile is in a bent state after being lowered. It is necessary to manually straighten the steel pipe pile before continuing to install the side columns. In addition, each steel pipe pile is heavy, and it takes a long time to adjust. Usually, the adjustment state is not very ideal. The bent state will cause the length of the I-beam in the steel cage to be insufficient, resulting in the binding effect not meeting the requirements, which greatly reduces the construction efficiency and quality. At the same time, the steel pipe pile must be adjusted in a free state, which seriously increases the safety hazards caused by the adjustment process, and is accompanied by the risk of the steel pipe pile falling and collapsing. Summary of the invention

[0005] The purpose of the present invention is to provide a steel pipe pile and steel cage binding method to solve the problems of low efficiency, poor binding quality and safety risks in the existing steel pipe pile binding into the cage.

[0006] To achieve the above object, an embodiment of the present invention provides a steel pipe pile steel cage binding method, comprising the following steps:

[0007] S1. Provide two bottom beams and a plurality of first columns, place the bottom beams horizontally on the ground, the two bottom beams are arranged in parallel, a plurality of first columns are vertically and evenly fixed on the two bottom beams, a plurality of first grooves with upper ends opened are formed on the bottom beams, and the first grooves formed on the two bottom beams are on the same straight line;

[0008] S2. Lift the entire steel pipe pile, and load the steel pipe pile from the top of the opening into the two first grooves in the same straight line until the first groove on the bottom beam is filled with the steel pipe pile, and the cage is finished;

[0009] S3. Provide two top cross beams, the two top cross beams are respectively connected to the top sides of the first columns fixed with the two bottom cross beams to form two parallel closed steel cages.

[0010] Further, in step S2, after the steel pipe pile is installed in the first groove, two middle cross beams and second columns of the same number as the first columns are provided, and the second columns are fixed vertically and evenly spaced on the two middle cross beams to form a plurality of second grooves with openings at the upper ends, and the second grooves formed on the two middle cross beams are on the same straight line; then the entire steel pipe pile is hoisted and installed in the second groove until the steel pipe pile is completely placed in the cage.

[0011] Furthermore, the two middle cross beams are first fixed on the top side of the first column, and respectively form a closed steel cage with the two bottom cross beams; then a plurality of the second columns are vertically arranged on the middle cross beam according to the positions of the first columns; in the step S3, the top cross beam is fixed on the top side of the second column to form a steel cage with both upper and lower layers closed.

[0012] Further, in step S1, after the bottom cross beam is placed horizontally on the ground, a plurality of center lines are drawn on the ground, and the plurality of center lines are evenly drawn on one side of the bottom cross beam. A plurality of the first columns are vertically fixed on the bottom cross beam according to the center lines, so as to determine whether the first columns are on the same straight line.

[0013] Furthermore, after the first column is fixed to the bottom cross beam, four oblique rods are provided, the top sides of two oblique rods are respectively connected to the outer sides of the first columns located at both ends of the bottom cross beam, and the bottom ends of the two oblique rods are fixed to the ground.

[0014] Furthermore, multiple groups of the bottom cross beams and a corresponding number of first columns are provided, and the multiple bottom cross beams are arranged in parallel. The multiple first columns are vertically fixed on different bottom cross beams according to the center line, so that multiple first grooves are provided on the same straight line for simultaneously binding different positions of the steel pipe pile.

[0015] Furthermore, it also includes reinforcing ribs, which are respectively arranged at the centers of both ends of the first column and the second column to support the steel pipe piles.

[0016] Furthermore, the bottom cross beam, the first column, the top cross beam, the middle cross beam, the second column and the reinforcing ribs are all made of I-beams.

[0017] Furthermore, in the step S2, after the steel pipe piles are hoisted, a plurality of steel pipe piles are hoisted into the first groove in sequence from the middle to both sides until the piles are completely hoisted into the cage.

[0018] Further, in the step S1, the number of the first columns is eight or ten.

[0019] The above one or more technical solutions in the steel pipe pile steel cage binding method provided by the embodiment of the present invention have at least the following technical effects:

[0020] Fixing multiple first columns vertically and evenly spaced on the bottom crossbeam to form multiple first grooves with upper openings is equivalent to prefabricating part of the steel cage in advance, saving the time of first columns being installed in bulk on the bottom crossbeam in sequence during the process of steel pipe piles entering the cage, thereby reducing the production cost. Because the first grooves on the two parallel bottom crossbeams are on the same straight line, the entire steel pipe pile is hoisted and accurately placed in the two first grooves on the same straight line, saving the time required to adjust the straightness of the steel pipe piles during bulk loading; because the steel cage controls and maintains the straightness of the steel pipe piles after entering the cage, the alignment and welding deformation of the steel cage in the later stage are small, which improves the quality and efficiency of the binding and reduces the cost of manual adjustment when the steel pipe piles enter the cage. And when the steel pipe piles enter the cage, both sides are protected and tightened by the first columns to avoid safety accidents of high fall and collapse of the steel pipe piles, greatly reducing the safety risk of steel pipe piles entering the cage. Finally, the top crossbeam is installed on the top side of the first column to form a closed and stable steel cage, which provides protection for the transportation process of the steel pipe piles, creates conditions for offshore installation and construction, and provides a technical basis for the construction of steel pipe piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 A top view of a steel pipe pile in the steel pipe pile and steel cage binding method provided in an embodiment of the present invention.

[0023] Figure 2 A structural diagram of steel cage tying steel pipe piles in a steel pipe pile steel cage tying method provided in an embodiment of the present invention.

[0024] Figure 3 A schematic diagram of multiple groups of steel cages tying steel pipe piles in a steel pipe pile and steel cage tying method provided in an embodiment of the present invention.

[0025] Figure 4 This is the assembly sequence diagram of the bulk method of steel pipe piles.

[0026] Figure 5 A front view of a prefabricated steel cage formed by a bottom cross beam and a plurality of first columns and diagonal rods in a steel pipe pile steel cage binding method provided in an embodiment of the present invention.

[0027] Figure 6 A front view of a steel pipe pile installed in a first groove formed by a bottom cross beam and a plurality of first columns in a steel pipe pile and steel cage binding method provided in an embodiment of the present invention.

[0028] Figure 7 A partial exploded view of the steel pipe piles installed in the two-layer steel cage in the steel pipe pile and steel cage binding method provided in an embodiment of the present invention.

[0029] In the figure, 10, bottom cross beam, 20, first column, 21, first groove, 30, middle cross beam, 40, second column, 41, second groove, 50, top cross beam, 60, diagonal rod, 70, reinforcing rib, 80, steel pipe pile, 90, steel cage. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the present invention, and should not be construed as limiting the present invention.

[0031] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0033] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0034] In one embodiment of the steel pipe pile steel cage binding method of the present invention, please refer to Figure 2 , Figures 5 to 7 . A method for tying a steel pipe pile and a steel cage comprises the following steps: S1. Two bottom beams 10 and a plurality of first columns 20 are provided, the bottom beams 10 are placed horizontally on the ground, the two bottom beams 10 are arranged in parallel, and a plurality of first columns 20 are respectively fixed on the two bottom beams 10 vertically and at equal intervals, a plurality of first grooves 21 with upper ends opening are formed on the bottom beams 10, and the first grooves 20 formed on the two bottom beams 10 are on the same straight line. S2. The entire steel pipe pile 80 is hoisted, and the steel pipe piles 80 are installed from the top of the opening into the two first grooves 21 on the same straight line, until the first grooves 21 on the bottom beam 10 are all filled with steel pipe piles 80, and the cage entry is completed. S3. Two top beams 50 are provided, and the two top beams 50 are respectively connected to the top sides of the first columns 20 fixed to the two bottom beams to form two parallel closed steel cages 90.

[0035] Specifically, multiple first columns 20 are fixed on the bottom cross beam 10 vertically and at equal intervals by welding to form multiple first grooves 21 with upper ends opened, which is equivalent to prefabricating part of the steel cage in advance, saving the time of first columns 20 being installed in bulk on the bottom cross beam 10 in sequence during the process of steel pipe piles 80 entering the cage, thereby reducing the production cost. Because the first grooves 21 on the two parallel bottom cross beams are on the same straight line, the whole steel pipe pile 80 is hoisted and accurately placed in the two first grooves 21 on the same straight line, saving the time required to adjust the straightness of the steel pipe pile 80 when bulking; because the steel cage 90 controls and maintains the straightness of the steel pipe pile 80 after entering the cage, the alignment and welding deformation of the steel cage 90 in the later stage are small, which improves the quality and efficiency of binding, and reduces the cost of manual adjustment when the steel pipe pile 80 enters the cage. And when the steel pipe pile 80 enters the cage, both sides are protected and tightened by the first columns 20, avoiding safety accidents of high fall and collapse of the steel pipe pile 80, greatly reducing the safety risk of the steel pipe pile 80 entering the cage. Finally, the top cross beam 50 is installed on the top side of the first column 20 to form a closed and stable steel cage 90, which provides protection for the transportation process of the steel pipe piles 80, creates conditions for offshore installation and construction, and provides a technical basis for the construction of the steel pipe piles 80.

[0036] Further, in step S2, after the steel pipe pile 80 is installed in the first groove 21. Two middle beams 30 and the same number of second columns 40 as the first column 20 are provided, and the second columns 40 are fixed vertically and evenly spaced on the two middle beams 30 to form a plurality of second grooves 41 with open upper ends, and the second grooves 41 formed on the two middle beams 30 are on the same straight line. Then the whole steel pipe pile 80 is hoisted and installed in the second groove 41 until the steel pipe pile 80 is completely put into the cage. Among them, the two middle beams 30 are first fixed on the top side of the first column 20, and respectively form a closed steel cage 90 with the two bottom beams 10. Then, a plurality of second columns 40 are vertically arranged on the middle beam 30 according to the position of the first column 20. In step S3, the top beam 50 is fixed on the top side of the second column 40 to form a steel cage 90 with both upper and lower layers closed.

[0037] Specifically, since the second column 40 is vertically arranged on the middle cross beam 30 according to the position of the first column 20, the second column 40 and the first column 20 are on the same vertical plane, so that the upper and lower layers of steel cages are aligned, and the stability and firmness of the steel cage 90 are improved. Further, in step S1, the number of the first columns 20 is eight or ten. Specifically, when the number of the first columns 20 is eight, four first columns 20 are vertically arranged on a bottom cross beam 10, forming three first grooves 21, and three steel pipe piles 80 can be tied. Then the middle cross beam 30 is arranged on the top side of the first column 20, so that the second column 20 of the upper layer continues to tie three steel pipe piles 80, and then the top cross beam 50 is welded, so that the upper and lower layers of steel cages 90 formed have a total of six steel pipe piles 80 tied. Similarly, when the number of the first columns 20 is ten, seven or eight steel pipe piles 80 can be tied to the two layers of steel cages 90.

[0038] Further, in step S1, after the bottom cross beam 10 is placed horizontally on the ground, multiple center lines are then drawn on the ground, and the multiple center lines are evenly drawn on one side of the bottom cross beam 10. Multiple first columns 20 are vertically fixed on the bottom cross beam 10 according to the center lines, which is used to determine whether the first columns 20 are in the same straight line. Specifically, the center line is used as a reference to check whether each first column 20 is in the same straight line, and to check whether the first columns on the two bottom cross beams 10 are in the same straight line. After ensuring that the first columns 20 are in the same straight line, the steel pipe piles 80 hoisted into the first grooves 21 will not bend, which will affect the binding effect.

[0039] Further, after the first column 20 is fixed to the bottom cross beam 10, four oblique rods 60 are provided, and the top sides of the two oblique rods 60 are respectively connected to the outer sides of the first column 20 located at both ends of the bottom cross beam 10, and the bottom ends of the two oblique rods 60 are fixed on the ground. Specifically, the oblique rods 60 serve as a temporary support structure to help fix the steel cage structure, prevent the first column 20 from falling, and improve the safety of the steel pipe pile 80 entering the cage.

[0040] Furthermore, multiple groups of bottom cross beams 10 and corresponding numbers of first columns 20 are provided, multiple bottom cross beams 10 are arranged in parallel, and multiple first columns 20 are vertically fixed on different bottom cross beams 10 according to the center line, so that multiple first grooves 21 are provided on the same straight line, which are used to simultaneously tie different positions of a steel pipe pile 80. Specifically, multiple groups of steel cages 90 further control the straightness of the steel pipe pile 80, and ensure the tying quality and supporting effect of the steel pipe pile 80, providing guarantee for marine transportation.

[0041] Furthermore, reinforcing ribs 70 are provided at the centers of both ends of the first column 20 and the second column 40, respectively, for supporting the steel pipe pile 80. Specifically, the reinforcing ribs 70 enhance the structural strength of the first column 20 and the second column 40, and reduce the bending deformation of the first column 20 and the second column 40 after the steel pipe pile 80 enters the cage.

[0042] Furthermore, the bottom cross beam 10, the first column 20, the top cross beam 50, the middle cross beam 30, the second column 40 and the reinforcing rib 70 are all made of I-beams. Specifically, the I-beams have high strength and high bending resistance, and the large load they carry can effectively bind the steel pipe piles 80, and can also assist in controlling the straightness of the steel pipe piles 80 entering the cage, so that the entire steel pipe pile 80 will not be bent when placed in the steel cage 90.

[0043] Further, in step S2, after the steel pipe piles 80 are hoisted, a plurality of steel pipe piles 80 are hoisted into the first groove 21 in sequence from the middle to both sides until the cage is completely filled. Specifically, the steel pipe piles 80 are hoisted into the first groove 21 in sequence from the middle to both sides, so that the steel pipe piles 80 are in a relatively balanced state during the cage filling process, and the weight of the steel pipe piles 80 is prevented from being concentrated on one side, causing the steel cage 90 to deform.

[0044] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel pipe pile steel cage binding method, characterized in that: The following steps are involved: S1. Provide two bottom beams and a plurality of first columns, place the bottom beams horizontally on the ground, the two bottom beams are arranged in parallel, a plurality of first columns are vertically and evenly fixed on the two bottom beams, a plurality of first grooves with upper ends opened are formed on the bottom beams, and the first grooves formed on the two bottom beams are on the same straight line; S2. Lift the entire steel pipe pile, and load the steel pipe pile from the top of the opening into the two first grooves in the same straight line until the first groove on the bottom beam is filled with the steel pipe pile, and the cage is finished; S3. Provide two top cross beams, the two top cross beams are respectively connected to the top sides of the first columns fixed with the two bottom cross beams to form two parallel closed steel cages.

2. The steel pipe pile steel cage binding method according to claim 1 is characterized in that: In the step S2, after the steel pipe pile is installed in the first groove; Two middle cross beams and second columns of the same number as the first columns are provided, and the second columns are respectively fixed on the two middle cross beams vertically and at equal intervals to form a plurality of second grooves with upper ends opened, and the second grooves formed on the two middle cross beams are on the same straight line; Then the whole steel pipe pile is hoisted and installed into the second groove until the steel pipe pile is completely placed in the cage.

3. The steel pipe pile steel cage binding method according to claim 2 is characterized in that: The two middle cross beams are first fixed on the top side of the first column, and respectively form a closed steel cage with the two bottom cross beams; then a plurality of the second columns are vertically arranged on the middle cross beam according to the positions of the first columns; In step S3, the top cross beam is fixed to the top side of the second column to form a steel cage with both upper and lower layers closed.

4. The steel pipe pile steel cage binding method according to claim 1 is characterized in that: In step S1, after the bottom cross beam is placed horizontally on the ground, a plurality of center lines are drawn on the ground, and the plurality of center lines are evenly drawn on one side of the bottom cross beam. A plurality of the first columns are vertically fixed on the bottom cross beam according to the center lines, so as to determine whether the first columns are on the same straight line.

5. The steel pipe pile steel cage binding method according to claim 4 is characterized in that: After the first column is fixed to the bottom cross beam, four oblique rods are provided, the top sides of two oblique rods are respectively connected to the outer sides of the first columns located at both ends of the bottom cross beam, and the bottom ends of the two oblique rods are fixed to the ground.

6. The steel pipe pile steel cage binding method according to claim 4 is characterized in that: A plurality of groups of bottom cross beams and a corresponding number of first columns are provided, wherein the plurality of bottom cross beams are arranged in parallel, and the plurality of first columns are vertically fixed on different bottom cross beams according to the center line, so that a plurality of first grooves are provided on the same straight line for simultaneously binding different positions of a steel pipe pile.

7. The steel pipe pile steel cage binding method according to claim 2 is characterized in that: It also includes reinforcing ribs, which are respectively arranged at the centers of both ends of the first column and the second column to support the steel pipe piles.

8. The steel pipe pile steel cage binding method according to claim 7 is characterized in that: The bottom cross beam, the first column, the top cross beam, the middle cross beam, the second column and the reinforcing ribs are all made of I-beams.

9. The steel pipe pile steel cage binding method according to claim 1, characterized in that: In step S2, after the steel pipe piles are hoisted, a plurality of steel pipe piles are hoisted into the first groove in sequence from the middle to both sides until the piles are completely hoisted into the cage.

10. The steel pipe pile steel cage binding method according to claim 2, characterized in that: In the step S1, the number of the first pillars is eight or ten.

Images